Embodiments pertain to mmWave antennas in electronic devices. In particular, some embodiments relate to mmWave antenna integrated module (AiM) modules incorporated in electronic devices.
The use and complexity of wireless systems has increased due to both an increase in the types of electronic devices using network resources as well as the amount of data and bandwidth being used by various applications, such as video streaming, operating on the electronic devices. As expected, a number of issues abound with the advent of any new technology, including complexities related to the integration of mmWave communications (i.e., communications in the mm wave bands) in electronic devices.
In the figures, which are not necessarily drawn to scale, like numerals may describe similar components in different views. Like numerals having different letter suffixes may represent different instances of similar components. The figures illustrate generally, by way of example, but not by way of limitation, various embodiments discussed in the present document.
The following description and the drawings sufficiently illustrate specific embodiments to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. Portions and features of some embodiments may be included in, or substituted for, those of other embodiments. Embodiments set forth in the claims encompass all available equivalents of those claims.
FEM circuitry 104 may include a WLAN or Wi-Fi FEM circuitry 104A and a Bluetooth (BT) FEM circuitry 104B. The WLAN FEM circuitry 104A may include a receive signal path comprising circuitry configured to operate on WLAN RF signals received from one or more antennas 101, to amplify the received signals and to provide the amplified versions of the received signals to the WLAN radio IC circuitry 106A for further processing. The BT FEM circuitry 104B may include a receive signal path which may include circuitry configured to operate on BT RF signals received from one or more antennas 101, to amplify the received signals and to provide the amplified versions of the received signals to the BT radio IC circuitry 106B for further processing. FEM circuitry 104A may also include a transmit signal path which may include circuitry configured to amplify WLAN signals provided by the radio IC circuitry 106A for wireless transmission by one or more of the antennas 101. In addition, FEM circuitry 104B may also include a transmit signal path which may include circuitry configured to amplify BT signals provided by the radio IC circuitry 106B for wireless transmission by the one or more antennas. In the embodiment of
Radio IC circuitry 106 as shown may include WLAN radio IC circuitry 106A and BT radio IC circuitry 106B. The WLAN radio IC circuitry 106A may include a receive signal path which may include circuitry to down-convert WLAN RF signals received from the FEM circuitry 104A and provide baseband signals to WLAN baseband circuitry 108A. BT radio IC circuitry 106B may in turn include a receive signal path which may include circuitry to down-convert BT RF signals received from the FEM circuitry 104B and provide baseband signals to BT baseband processing circuitry 108B. WLAN radio IC circuitry 106A may also include a transmit signal path which may include circuitry to up-convert WLAN baseband signals provided by the WLAN baseband circuitry 108A and provide WLAN RF output signals to the FEM circuitry 104A for subsequent wireless transmission by the one or more antennas 101. BT radio IC circuitry 106B may also include a transmit signal path which may include circuitry to up-convert BT baseband signals provided by the BT baseband processing circuitry 108B and provide BT RF output signals to the FEM circuitry 104B for subsequent wireless transmission by the one or more antennas 101. In the embodiment of
Baseband processing circuitry 108 may include a WLAN baseband circuitry 108A and a BT baseband processing circuitry 108B. The WLAN baseband circuitry 108A may include a memory, such as, for example, a set of RAM arrays in a Fast Fourier Transform or Inverse Fast Fourier Transform block (not shown) of the WLAN baseband circuitry 108A. Each of the WLAN baseband circuitry 108A and the BT baseband circuitry 108B may further include one or more processors and control logic to process the signals received from the corresponding WLAN or BT receive signal path of the radio IC circuitry 106, and to also generate corresponding WLAN or BT baseband signals for the transmit signal path of the radio IC circuitry 106. Each of the WLAN baseband circuitry 108A and the BT baseband circuitry 108B may further include physical layer (PHY) and medium access control layer (MAC) circuitry, and may further interface with application processor 111 for generation and processing of the baseband signals and for controlling operations of the radio IC circuitry 106.
Referring still to
In some embodiments, the front-end module circuitry 104, the radio IC circuitry 106, and baseband processing circuitry 108 may be provided on a single radio card, such as wireless radio card 102. In some other embodiments, the one or more antennas 101, the FEM circuitry 104 and the radio IC circuitry 106 may be provided on a single radio card. In some other embodiments, the radio IC circuitry 106 and the baseband processing circuitry 108 may be provided on a single chip or IC, such as IC 112.
In some embodiments, the wireless radio card 102 may include a WLAN radio card and may be configured for Wi-Fi communications, although the scope of the embodiments is not limited in this respect. In some of these embodiments, the radio architecture 100 may be configured to receive and transmit orthogonal frequency division multiplexed (OFDM) or orthogonal frequency division multiple access (OFDMA) communication signals over a multicarrier communication channel. The OFDM or OFDMA signals may comprise a plurality of orthogonal subcarriers.
In some of these multicarrier embodiments, radio architecture 100 may be part of a Wi-Fi communication station (STA) such as a wireless access point (AP), a base station or a mobile device including a Wi-Fi device. In some of these embodiments, radio architecture 100 may be configured to transmit and receive signals in accordance with specific communication standards and/or protocols, such as any of the Institute of Electrical and Electronics Engineers (IEEE) standards including, IEEE 802.11n-2009, IEEE 802.11-2012, IEEE 802.11-2016, IEEE 802.11ac, and/or IEEE 802.11ax standards and/or proposed specifications for WLANs, although the scope of embodiments is not limited in this respect. Radio architecture 100 may also be suitable to transmit and/or receive communications in accordance with other techniques and standards.
In some embodiments, the radio architecture 100 may be configured for high-efficiency (HE) Wi-Fi (HEW) communications in accordance with the IEEE 802.11ax standard. In these embodiments, the radio architecture 100 may be configured to communicate in accordance with an OFDMA technique, although the scope of the embodiments is not limited in this respect.
In some other embodiments, the radio architecture 100 may be configured to transmit and receive signals transmitted using one or more other modulation techniques such as spread spectrum modulation (e.g., direct sequence code division multiple access (DS-CDMA) and/or frequency hopping code division multiple access (FH-CDMA)), time-division multiplexing (TDM) modulation, and/or frequency-division multiplexing (FDM) modulation, although the scope of the embodiments is not limited in this respect.
In some embodiments, as further shown in
In some embodiments, the radio architecture 100 may include other radio cards, such as a cellular radio card configured for cellular (e.g., 3GPP such as LTE, LTE-Advanced or 5G communications).
In some IEEE 802.11 embodiments, the radio architecture 100 may be configured for communication over various channel bandwidths including bandwidths having center frequencies of about 900 MHZ, 2.4 GHz, 5 GHz, and bandwidths of about 1 MHz, 2 MHZ, 2.5 MHz, 4 MHZ, 5 MHz, 8 MHz, 10 MHz, 16 MHz, 20 MHz, 40 MHz, 80 MHz (with contiguous bandwidths) or 80+80 MHz (160 MHz) (with non-contiguous bandwidths). In some embodiments, a 320 MHz channel bandwidth may be used. The scope of the embodiments is not limited with respect to the above center frequencies however.
In some embodiments, the FEM circuitry 200 may include a TX/RX switch 202 to switch between transmit mode and receive mode operation. The FEM circuitry 200 may include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry 200 may include a low-noise amplifier (LNA) 206 to amplify received RF signals 203 and provide the amplified received RF signals 207 as an output (e.g., to the radio IC circuitry 106 (
In some dual-mode embodiments for Wi-Fi communication, the FEM circuitry 200 may be configured to operate in either the 2.4 GHz frequency spectrum or the 5 GHz frequency spectrum. In these embodiments, the receive signal path of the FEM circuitry 200 may include a receive signal path duplexer 204 to separate the signals from each spectrum as well as provide a separate LNA 206 for each spectrum as shown. In these embodiments, the transmit signal path of the FEM circuitry 200 may also include a power amplifier 210 and a filter 212, such as a BPF, a LPF or another type of filter for each frequency spectrum and a transmit signal path duplexer 214 to provide the signals of one of the different spectrums onto a single transmit path for subsequent transmission by the one or more of the antennas 101 (
In some embodiments, the radio IC circuitry 300 may include a receive signal path and a transmit signal path. The receive signal path of the radio IC circuitry 300 may include at least mixer circuitry 302, such as, for example, down-conversion mixer circuitry, amplifier circuitry 306 and filter circuitry 308. The transmit signal path of the radio IC circuitry 300 may include at least filter circuitry 312 and mixer circuitry 314, such as, for example, up-conversion mixer circuitry. Radio IC circuitry 300 may also include synthesizer circuitry 304 for synthesizing a frequency 305 for use by the mixer circuitry 302 and the mixer circuitry 314. The mixer circuitry 302 and/or 314 may each, according to some embodiments, be configured to provide direct conversion functionality. The latter type of circuitry presents a much simpler architecture as compared with standard super-heterodyne mixer circuitries, and any flicker noise brought about by the same may be alleviated for example through the use of OFDM modulation.
In some embodiments, mixer circuitry 302 may be configured to down-convert RF signals 207 received from the FEM circuitry 104 (
In some embodiments, the mixer circuitry 314 may be configured to up-convert input baseband signals 311 based on the synthesized frequency 305 provided by the synthesizer circuitry 304 to generate RF output signals 209 for the FEM circuitry 104. The baseband signals 311 may be provided by the baseband processing circuitry 108 and may be filtered by filter circuitry 312. The filter circuitry 312 may include a LPF or a BPF, although the scope of the embodiments is not limited in this respect.
In some embodiments, the mixer circuitry 302 and the mixer circuitry 314 may each include two or more mixers and may be arranged for quadrature down-conversion and/or up-conversion respectively with the help of synthesizer circuitry 304. In some embodiments, the mixer circuitry 302 and the mixer circuitry 314 may each include two or more mixers each configured for image rejection (e.g., Hartley image rejection). In some embodiments, the mixer circuitry 302 and the mixer circuitry 314 may be arranged for direct down-conversion and/or direct up-conversion, respectively. In some embodiments, the mixer circuitry 302 and the mixer circuitry 314 may be configured for super-heterodyne operation, although this is not a requirement.
Mixer circuitry 302 may comprise, according to one embodiment: quadrature passive mixers (e.g., for the in-phase (I) and quadrature phase (Q) paths). In such an embodiment, RF input signal 207 from
Quadrature passive mixers may be driven by zero and ninety-degree time-varying LO switching signals provided by a quadrature circuitry which may be configured to receive a LO frequency (fLO) from a local oscillator or a synthesizer, such as LO frequency 305 of synthesizer circuitry 304 (
In some embodiments, the LO signals may differ in duty cycle (the percentage of one period in which the LO signal is high) and/or offset (the difference between start points of the period). In some embodiments, the LO signals may have a 25% duty cycle and a 50% offset. In some embodiments, each branch of the mixer circuitry (e.g., the in-phase (I) and quadrature phase (Q) path) may operate at a 25% duty cycle, which may result in a significant reduction is power consumption.
The RF input signal 207 (
In some embodiments, the output baseband signals 307 and the input baseband signals 311 may be analog baseband signals, although the scope of the embodiments is not limited in this respect. In some alternate embodiments, the output baseband signals 307 and the input baseband signals 311 may be digital baseband signals. In these alternate embodiments, the radio IC circuitry may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry.
In some dual-mode embodiments, a separate radio IC circuitry may be provided for processing signals for each spectrum, or for other spectrums not mentioned here, although the scope of the embodiments is not limited in this respect.
In some embodiments, the synthesizer circuitry 304 may be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable. For example, synthesizer circuitry 304 may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider. According to some embodiments, the synthesizer circuitry 304 may include digital synthesizer circuitry. An advantage of using a digital synthesizer circuitry is that, although it may still include some analog components, its footprint may be scaled down much more than the footprint of an analog synthesizer circuitry. In some embodiments, frequency input into synthesizer circuitry 304 may be provided by a voltage controlled oscillator (VCO), although that is not a requirement. A divider control input may further be provided by either the baseband processing circuitry 108 (
In some embodiments, synthesizer circuitry 304 may be configured to generate a carrier frequency as the output frequency 305, while in other embodiments, the output frequency 305 may be a fraction of the carrier frequency (e.g., one-half the carrier frequency, one-third the carrier frequency). In some embodiments, the output frequency 305 may be a LO frequency (fLO).
In some embodiments (e.g., when analog baseband signals are exchanged between the baseband processing circuitry 400 and the radio IC circuitry 106), the baseband processing circuitry 400 may include ADC 410 to convert analog baseband signals received from the radio IC circuitry 106 to digital baseband signals for processing by the RX BBP 402. In these embodiments, the baseband processing circuitry 400 may also include DAC 412 to convert digital baseband signals from the TX BBP 404 to analog baseband signals.
In some embodiments, the transmit baseband processor 404 may be configured to generate OFDM or OFDMA signals as appropriate for transmission by performing an inverse fast Fourier transform (IFFT). The receive baseband processor 402 may be configured to process received OFDM signals or OFDMA signals by performing an FFT. In some embodiments, the receive baseband processor 402 may be configured to detect the presence of an OFDM signal or OFDMA signal by performing an autocorrelation, to detect a preamble, such as a short preamble, and by performing a cross-correlation, to detect a long preamble. The preambles may be part of a predetermined frame structure for Wi-Fi communication.
Referring to
Although the radio architecture 100 is illustrated as having several separate functional elements, one or more of the functional elements may be combined and may be implemented by combinations of software-configured elements, such as processing elements including digital signal processors (DSPs), and/or other hardware elements. For example, some elements may comprise one or more microprocessors, DSPs, field-programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), radio-frequency integrated circuits (RFICs) and combinations of various hardware and logic circuitry for performing at least the functions described herein. In some embodiments, the functional elements may refer to one or more processes operating on one or more processing elements.
The AP 502 may be an AP using the IEEE 802.11 to transmit and receive. The AP 502 may be a base station. The AP 502 may use other communications protocols as well as the IEEE 802.11 protocol. The EHT protocol may be termed a different name in accordance with some embodiments. The IEEE 802.11 protocol may include using orthogonal frequency division multiple-access (OFDMA), time division multiple access (TDMA), and/or code division multiple access (CDMA). The IEEE 802.11 protocol may include a multiple access technique. For example, the IEEE 802.11 protocol may include space-division multiple access (SDMA) and/or multiple-user multiple-input multiple-output (MU-MIMO). There may be more than one EHT AP 502 that is part of an extended service set (ESS). A controller (not illustrated) may store information that is common to the more than one APs 502 and may control more than one BSS, e.g., assign primary channels, colors, etc. AP 502 may be connected to the internet.
The legacy devices 506 may operate in accordance with one or more of IEEE 802.11 a/b/g/n/ac/ad/af/ah/aj/ay/ax, or another legacy wireless communication standard. The legacy devices 506 may be STAs or IEEE STAs. The STAs 504 may be wireless transmit and receive devices such as cellular telephone, portable electronic wireless communication devices, smart telephone, handheld wireless device, wireless glasses, wireless watch, wireless personal device, tablet, or another device that may be transmitting and receiving using the IEEE 802.11 protocol such as IEEE 802.11be or another wireless protocol.
The AP 502 may communicate with legacy devices 506 in accordance with legacy IEEE 802.11 communication techniques. In example embodiments, the H AP 502 may also be configured to communicate with STAs 504 in accordance with legacy IEEE 802.11 communication techniques.
In some embodiments, a HE or EHT frames may be configurable to have the same bandwidth as a channel. The HE or EHT frame may be a physical Layer Convergence Procedure (PLCP) Protocol Data Unit (PPDU). In some embodiments, PPDU may be an abbreviation for physical layer protocol data unit (PPDU). In some embodiments, there may be different types of PPDUs that may have different fields and different physical layers and/or different media access control (MAC) layers. For example, a single user (SU) PPDU, multiple-user (MU) PPDU, extended-range (ER) SU PPDU, and/or trigger-based (TB) PPDU. In some embodiments EHT may be the same or similar as HE PPDUs.
The bandwidth of a channel may be 20 MHz, 40 MHz, or 80MHZ, 80+80 MHz, 160 MHz, 160+160 MHz, 320 MHz, 320+320 MHz, 640 MHz bandwidths. In some embodiments, the bandwidth of a channel less than 20 MHz may be 1 MHz, 1.25 MHz, 2.03 MHz, 2.5 MHz, 4.06 MHZ, 5 MHz and 10 MHz, or a combination thereof or another bandwidth that is less or equal to the available bandwidth may also be used. In some embodiments the bandwidth of the channels may be based on a number of active data subcarriers. In some embodiments the bandwidth of the channels is based on 26, 52, 106, 242, 484, 996, or 2×996 active data subcarriers or tones that are spaced by 20 MHz. In some embodiments the bandwidth of the channels is 256 tones spaced by 20 MHz. In some embodiments the channels are multiple of 26 tones or a multiple of 20 MHz. In some embodiments a 20 MHz channel may comprise 242 active data subcarriers or tones, which may determine the size of a Fast Fourier Transform (FFT). An allocation of a bandwidth or a number of tones or subcarriers may be termed a resource unit (RU) allocation in accordance with some embodiments.
In some embodiments, the 26-subcarrier RU and 52-subcarrier RU are used in the 20 MHz, 40 MHz, 80 MHz, 160 MHz and 80+80 MHz OFDMA HE PPDU formats. In some embodiments, the 106-subcarrier RU is used in the 20 MHz, 40 MHz, 80 MHZ, 160 MHz and 80+80 MHz OFDMA and MU-MIMO HE PPDU formats. In some embodiments, the 242-subcarrier RU is used in the 40 MHz, 80 MHZ, 160 MHz and 80+80 MHz OFDMA and MU-MIMO HE PPDU formats. In some embodiments, the 484-subcarrier RU is used in the 80 MHZ, 160 MHz and 80+80 MHz OFDMA and MU-MIMO HE PPDU formats. In some embodiments, the 996-subcarrier RU is used in the 160 MHz and 80+80 MHz OFDMA and MU-MIMO HE PPDU formats.
A HE or EHT frame may be configured for transmitting a number of spatial streams, which may be in accordance with MU-MIMO and may be in accordance with OFDMA. In other embodiments, the AP 502, STA 504, and/or legacy device 506 may also implement different technologies such as code division multiple access (CDMA) 2000, CDMA 2000 1×, CDMA 2000 Evolution-Data Optimized (EV-DO), Interim Standard 2000 (IS-2000), Interim Standard 95 (IS-95), Interim Standard 856 (IS-856), Long Term Evolution (LTE), Global System for Mobile communications (GSM), Enhanced Data rates for GSM Evolution (EDGE), GSM EDGE (GERAN), IEEE 802.16 (i.e., Worldwide Interoperability for Microwave Access (WiMAX)), BlueTooth®, low-power BlueTooth®, or other technologies.
In accordance with some IEEE 802.11 embodiments, e.g., IEEE 802.11EHT/ax embodiments, a HE AP 502 may operate as a master station which may be arranged to contend for a wireless medium (e.g., during a contention period) to receive exclusive control of the medium for a transmission opportunity (TXOP). The AP 502 may transmit an EHT/HE trigger frame transmission, which may include a schedule for simultaneous UL/DL transmissions from STAs 504. The AP 502 may transmit a time duration of the TXOP and sub-channel information. During the TXOP, STAs 504 may communicate with the AP 502 in accordance with a non-contention based multiple access technique such as OFDMA or MU-MIMO. This is unlike conventional WLAN communications in which devices communicate in accordance with a contention-based communication technique, rather than a multiple access technique. During the HE or EHT control period, the AP 502 may communicate with stations 504 using one or more HE or EHT frames. During the TXOP, the HE STAs 504 may operate on a sub-channel smaller than the operating range of the AP 502. During the TXOP, legacy stations refrain from communicating. The legacy stations may need to receive the communication from the HE AP 502 to defer from communicating.
In accordance with some embodiments, during the TXOP the STAs 504 may contend for the wireless medium with the legacy devices 506 being excluded from contending for the wireless medium during the master-sync transmission. In some embodiments the trigger frame may indicate an UL-MU-MIMO and/or UL OFDMA TXOP. In some embodiments, the trigger frame may include a DL UL-MU-MIMO and/or DL OFDMA with a schedule indicated in a preamble portion of trigger frame.
In some embodiments, the multiple-access technique used during the HE or EHT TXOP may be a scheduled OFDMA technique, although this is not a requirement. In some embodiments, the multiple access technique may be a time-division multiple access (TDMA) technique or a frequency division multiple access (FDMA) technique. In some embodiments, the multiple access technique may be a space-division multiple access (SDMA) technique. In some embodiments, the multiple access technique may be a Code division multiple access (CDMA).
The AP 502 may also communicate with legacy stations 506 and/or STAs 504 in accordance with legacy IEEE 802.11 communication techniques. In some embodiments, the AP 502 may also be configurable to communicate with STAs 504 outside the TXOP in accordance with legacy IEEE 802.11 or IEEE 802.11EHT/ax communication techniques, although this is not a requirement.
In some embodiments the STA 504 may be a “group owner” (GO) for peer-to-peer modes of operation. A wireless device may be a STA 502 or a HE AP 502.
In some embodiments, the STA 504 and/or AP 502 may be configured to operate in accordance with IEEE 802.11mc. In example embodiments, the radio architecture of
In example embodiments, the STAs 504, AP 502, an apparatus of the STA 504, and/or an apparatus of the AP 502 may include one or more of the following: the radio architecture of
In example embodiments, the radio architecture of
In example embodiments, the STAs 504 and/or the HE AP 502 are configured to perform the methods and operations/functions described herein in conjunction with the figures herein. The term Wi-Fi may refer to one or more of the IEEE 802.11 communication standards. AP and STA may refer to EHT/HE access point and/or EHT/HE station as well as legacy devices 506.
In some embodiments, a HE AP STA refers to an AP 502 and/or STAs 504 that are operating as EHT APs 502. In some embodiments, when a STA 504 is not operating as an AP, it may be referred to as a non-AP STA or non-AP. In some embodiments, STA 504 may be referred to as either an AP STA or a non-AP.
In some embodiments, a physical layer protocol data unit (PPDU) may be a physical layer conformance procedure (PLCP) protocol data unit (PPDU). In some embodiments, the AP 502 and STAs 504 may communicate in accordance with one of the IEEE 802.11 standards such as 11be, 11r, 11i, and/or 11w. IEEE P802.11be™/D1.0, May 2021, IEEE P802.11, December 2020, and IEEE P802.11 ax are incorporated herein by reference.
Machine (e.g., computer system) 600 may include a hardware processor 602 (e.g., a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory 604 and a static memory 606, some or all of which may communicate with each other via an interlink (e.g., bus) 608.
Specific examples of main memory 604 include Random Access Memory (RAM), and semiconductor memory devices, which may include, in some embodiments, storage locations in semiconductors such as registers. Specific examples of static memory 606 include non-volatile memory, such as semiconductor memory devices (e.g., Electrically Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM)) and flash memory devices: magnetic disks, such as internal hard disks and removable disks: magneto-optical disks: RAM: and CD-ROM and DVD-ROM disks.
The machine 600 may further include a display device 610, an input device 612 (e.g., a keyboard), and a user interface (UI) navigation device 614 (e.g., a mouse). In an example, the display device 610, input device 612 and UI navigation device 614 may be a touch screen display. The machine 600 may additionally include a mass storage (e.g., drive unit) 616, a signal generation device 618 (e.g., a speaker), a network interface device 620, and one or more sensors, such as a global positioning system (GPS) sensor, compass, accelerometer, or other sensor. The machine 600 may include an output controller, such as a serial (e.g., universal serial bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection to communicate or control one or more peripheral devices (e.g., a printer, card reader, etc.). In some embodiments the processor 602 and/or instructions 624 may comprise processing circuitry and/or transceiver circuitry.
The storage device 616 may include a machine readable medium 622 on which is stored one or more sets of data structures or instructions 624 (e.g., software) embodying or utilized by any one or more of the techniques or functions described herein. The instructions 624 may also reside, completely or at least partially, within the main memory 604, within static memory 606, or within the hardware processor 602 during execution thereof by the machine 600. In an example, one or any combination of the hardware processor 602, the main memory 604, the static memory 606, or the storage device 616 may constitute machine readable media.
Specific examples of machine readable media may include: non-volatile memory, such as semiconductor memory devices (e.g., EPROM or EEPROM) and flash memory devices: magnetic disks, such as internal hard disks and removable disks: magneto-optical disks: RAM: and CD-ROM and DVD-ROM disks.
While the machine readable medium 622 is illustrated as a single medium, the term “machine readable medium” may include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) configured to store the one or more instructions 624.
An apparatus of the machine 600 may be one or more of a hardware processor 602 (e.g., a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory 604 and a static memory 606, sensors, network interface device 620, antennas, a display device 610, an input device 612, a UI navigation device 614, a mass storage 616, instructions 624, a signal generation device 618, and an output controller. The apparatus may be configured to perform one or more of the methods and/or operations disclosed herein. The apparatus may be intended as a component of the machine 600 to perform one or more of the methods and/or operations disclosed herein, and/or to perform a portion of one or more of the methods and/or operations disclosed herein. In some embodiments, the apparatus may include a pin or other means to receive power. In some embodiments, the apparatus may include power conditioning hardware.
The term “machine readable medium” may include any medium that is capable of storing, encoding, or carrying instructions for execution by the machine 600 and that cause the machine 600 to perform any one or more of the techniques of the present disclosure, or that is capable of storing, encoding or carrying data structures used by or associated with such instructions. Non-limiting machine readable medium examples may include solid-state memories, and optical and magnetic media. Specific examples of machine readable media may include: non-volatile memory, such as semiconductor memory devices (e.g., Electrically Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM)) and flash memory devices: magnetic disks, such as internal hard disks and removable disks; magneto-optical disks; Random Access Memory (RAM); and CD-ROM and DVD-ROM disks. In some examples, machine readable media may include non-transitory machine-readable media. In some examples, machine readable media may include machine readable media that is not a transitory propagating signal.
The instructions 624 may further be transmitted or received over a communications network 626 using a transmission medium via the network interface device 620 utilizing any one of a number of transfer protocols (e.g., frame relay, internet protocol (IP), transmission control protocol (TCP), user datagram protocol (UDP), hypertext transfer protocol (HTTP), etc.). Example communication networks may include a local area network (LAN), a wide area network (WAN), a packet data network (e.g., the Internet), mobile telephone networks (e.g., cellular networks), Plain Old Telephone (POTS) networks, and wireless data networks (e.g., Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards known as Wi-Fi®, IEEE 802.16 family of standards known as WiMax®), IEEE 802.15.4 family of standards, a Long Term Evolution (LTE) family of standards, a Universal Mobile Telecommunications System (UMTS) family of standards, peer-to-peer (P2P) networks, among others.
In an example, the network interface device 620 may include one or more physical jacks (e.g., Ethernet, coaxial, or phone jacks) or one or more antennas to connect to the communications network 626. In an example, the network interface device 620 may include one or more antennas to wirelessly communicate using at least one of single-input multiple-output (SIMO), multiple-input multiple-output (MIMO), or multiple-input single-output (MISO) techniques. In some examples, the network interface device 620 may wirelessly communicate using Multiple User MIMO techniques. The term “transmission medium” shall be taken to include any intangible medium that is capable of storing, encoding or carrying instructions for execution by the machine 600, and includes digital or analog communications signals or other intangible medium to facilitate communication of such software.
Examples, as described herein, may include, or may operate on, logic or a number of components, modules, or mechanisms. Modules are tangible entities (e.g., hardware) capable of performing specified operations and may be configured or arranged in a certain manner. In an example, circuits may be arranged (e.g., internally or with respect to external entities such as other circuits) in a specified manner as a module. In an example, the whole or part of one or more computer systems (e.g., a standalone, client or server computer system) or one or more hardware processors may be configured by firmware or software (e.g., instructions, an application portion, or an application) as a module that operates to perform specified operations. In an example, the software may reside on a machine readable medium. In an example, the software, when executed by the underlying hardware of the module, causes the hardware to perform the specified operations.
Accordingly, the term “module” is understood to encompass a tangible entity, be that an entity that is physically constructed, specifically configured (e.g., hardwired), or temporarily (e.g., transitorily) configured (e.g., programmed) to operate in a specified manner or to perform part or all of any operation described herein. Considering examples in which modules are temporarily configured, each of the modules need not be instantiated at any one moment in time. For example, where the modules comprise a general-purpose hardware processor configured using software, the general-purpose hardware processor may be configured as respective different modules at different times. Software may accordingly configure a hardware processor, for example, to constitute a particular module at one instance of time and to constitute a different module at a different instance of time.
Some embodiments may be implemented fully or partially in software and/or firmware. This software and/or firmware may take the form of instructions contained in or on a non-transitory computer-readable storage medium. Those instructions may then be read and executed by one or more processors to enable performance of the operations described herein. The instructions may be in any suitable form, such as but not limited to source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. Such a computer-readable medium may include any tangible non-transitory medium for storing information in a form readable by one or more computers, such as but not limited to read only memory (ROM): random access memory (RAM): magnetic disk storage media: optical storage media: flash memory, etc.
As above, the desire to incorporate the ability to use mmWave communications in electronic devices has become of increasing interest with the advent of protocols for using such communications. However, to use mmWave signals, a particular piece of electronics may be redesigned to accommodate multiple mmWave AiM modules (also referred to herein as antenna modules or AiMs), as well as Wi-Fi and 5G sub-6 GHz antennas. This may be problematic in electronics with limited space, such as portable computers (such as laptops). The availability of additional space inside a laptop chassis to mount the additional (mmWave) antennas is a challenge considering the thin form factor of present laptops. The placement of mmWave modules in a laptop chassis may use a plastic opening over a C-cover of the laptop. This may directly impact the ID and/or thermal performance of the laptop. Note that the A-cover is the top of the display portion of the laptop, the B-cover is the bottom of the display portion (which contains the actual display), the C-cover is the top of the base (which contains one or more processors, as well as input devices including keyboard and mousepad, among others), and the D-cover is the bottom of the base.
The hinge mechanism herein enables placement of a 5G mmWave AiM module inside a barrel hinge cap of a laptop with wider radiation coverage in different laptop use cases. The hinge mechanism, along with a removable antenna holder, may fulfill mechanical, thermal, RF and radiation requirements of the mmWave AiM module. Replacement of mmWave FPCs with cable routing with the routing mechanism herein may allow placement of the mmWave module in a compact barrel hinge. Cable clamps are designed to fix cable movement near the antenna region, specifically in case of lid movement to prevent contact of cables with antenna connectors. This makes cable routing more reliable.
As can be seen in
Notably, an empty space may be present inside the barrel hinge cap. The barrel hinge cap may be formed, in some examples, from plastic material. The barrel hinge cap may be a suitable location for the antenna placement. Using this space, plastic cutouts can be avoided in the all-metal chassis of the laptop for antenna radiation. However, limitations of hinge mechanism remain. These limitations include maintaining/obtaining antenna performance (having directional radiation characteristics) when antenna module rotates along with lid movement, all peripherals inside the barrel hinge rotate with the lid movement, and routing of the antenna module FPCs/cables inside the barrel hinge (notably to avoid damage of the cables).
A modular hinge antenna holder may be used to avoid the above-mentioned limitations and place one or more directional mmWave antennas inside the barrel.
As above, FPCs may be used to route the cables for the mmWave AiM module. However, routing of the FPCs inside the barrel hinge along with lid cable bundle may be challenging due to less space being available. Accordingly, FPCs may be replaced with cables to provide the inputs to the mmWave AiM module through direct coupling to the AiM module.
Here, in a bundle, routing of the cables 1004 may be:
In some embodiments, multiple mmWave AiM modules may be used to meet the cumulative distribution function (CDF) requirement defined by the standards and network operators. However, as the addition of multiple AiM modules adds to the cost and system complexity, it is desirable to meet the CDF requirement using a minimum number of AiM modules. Accordingly, some embodiments may provide a base station-assisted rotatable AiM module, whose rotation may be based on the location coordinates of the base station. In this case, a mmWave base station with which the electronic device (e.g., laptop, mobile device) is connected may share the location coordinates through the LTE/NR link between the laptop and the base station. The electronic device may also acquire its own location coordinates from a built-in GNSS/WLAN and then determine its current position and orientation with respect to the mmWave base station using a compass and built-in sensor as described above. Using the above parameters, the electronic device may then calculate the amount of rotation to align the AiM module in the direction of the mmWave base station and rotates the AiM module accordingly.
Once the AiM module 2006, 2106 has been controlled to rotate in the direction of base station 2002, 2102, the AiM module 2006, 2106 can track the base station beam and correct the angle of the AiM module 2006, 2106 for minor movements in the system location/direction using beam steering.
In the embodiments shown in
As the base station 2002 in
As shown in
The ability to rotate the AiM module(s) may lead to a reduction in the number of AiM modules to be incorporated in the laptop, thereby increasing the design possibilities by reducing the system space constraints, cost, and AiM interconnect complexity while increasing the mmWave link reliability, meeting the CDF requirements, and number of proximity sensors. The AiM module may be disposed at any of the locations described herein (e.g., on one or more of the laptop covers, internal to the chassis, or rotatably disposed in the barrel hinge).
As above, enablement of mmWave communications for electronic devices (e.g., laptops) may be challenging when the minimum 3 AiM modules are used to meet the CDF defined by the operator. Each AiM module may use at least 6 signals, including digital and RF signals, for optimum operation. This may add to the cost and area used for the AiM module integration in an electronic device.
To combat the cost and area issues when multiple AiM modules are used, sets of spring loaded pogo-pin based interconnects may be used to enable power, digital, and shielded RF signals interfaces through a single connector, thereby reducing pin count by 10 instead of 24. This reduction may also enable the external plug and play of an AiM module, which brings down the overall system cost for mmWave communications.
In some embodiments, the AiM modules 2302a, 2302b may have pogo pin-based interconnects that include the power supply, reference supply, power enable (PON), and intermediate frequency (IF) interface (IF-H, IF-V) with a ground shield. The pin counts for the AiM modules 2302a, 2302b may be reduced by enabling a single IF interface to drive both the AiM modules 2302a, 2302b with the DPDT switch 2310 inside the dongle 2302 to switch the IF interface to the desired AiM module 2302a, 2302b. The real estate area may be reduced inside the electronic device 2300 by moving the AiM modules 2302a, 2302b into the dongle 2302. The M.2 based WWAN module 2306 may communicate with the mmWave interface with the help of the magnetically attached dongle 2302.
In addition, multiple AiM modules may be controlled using a single IF interface, which may help to reduce the cost incurred by the mmWave communications.
The appropriate AiM module 2702 may be selected using the PON signals based on the CDF difference between the AiM modules 2702. That is, the AiM module 2702 having the higher CDF may be determined and then be selected. Hence, a common power supply can be used for both AiM modules 2702 as only one AiM module 2702 may be operating at one time, thereby reducing the implementation cost. The AiM modules 2702 may be arranged specifically to meet a typical radiation coverage pattern of about 100° (to about 110°, as above) the CDF, as shown in
Turning to the pin arrangement of the dongle,
The connector portion of the dongle 2800 of
The dongle provides a pogo pin-based interconnect with pins for the AiM module signals and specially designed pins for the RF connectors.
FPC Based Modular mmWave AiM Module Holder as EMI Shield and Thermal Spreader
In some embodiments, multiple AiM modules may be disposed in the base of a laptop. However, the introduction of multiple AiM modules in the base may result in the AiM modules being proximate to system noise sources such as memory integrated circuits (ICs), system on a chip (SOC), and various types of interconnects. This may result in RF interference (RFI) issues due to coupling of the system noise to the mmWave antenna. As the mmWave frequency band ranges from 26 to 40 GHz: it may be difficult to design a metal shield that works for the given frequencies. Reducing the dependency of RF protection on metal shields, which may have an airgap or cutout of less than 0.75 mm to minimize the electromagnetic leakage, may be difficult. Designing PCB to achieve shields without such a gap may be difficult due to PCB inner layer breakout routing—in particular routing requirements establish a relaxed shield via to via pitch gets up to 5 mm, which may result in to mmWave frequency leakage, causing RFI issues. To overcome this, an antenna barricade may be used for the mmWave AiM module with the help of an IF channel FPC and metal fence to reduce the dependency of RF protection on metal shields.
As the AiM module system 3100 is modular, the AiM module system 3100 can be used for T/L systems, and the AiM module 3106 may be placed near locations with improved RFI with shielding in addition to reducing the length of the FPC 3102 with low IR losses.
The modular shield box formed from the FPC 3102, metal stiffener 3104, and metal fence 3108 may have limited impact to the radiation characteristics of the AiM module 3106 as the AiM module 3106 may retain the same coverage as a free space AiM module. In addition, the metal fence 3108 may not be grounded, which may help to retain the antenna array performance and can also be used for plastic systems. The metal fence 3108, as shown e.g., in
The AiM module 3106 may be attached to the FPC 3102 and/or metal fence 3108 through screws (or other fasteners) in a screw arrangement 3110a at opposing edges of a base 3110 on which the AiM module 3106 is disposed. This provides a simple, detachable and low cost solution for the modular shield box while mitigating vibrations. The portions of the modular shield box may be formed from one or more thermally conductive materials to achieve good thermal performance.
The metal stiffener 3104 may be formed in a substantially L shape from aluminum or another conductive material that is sufficiently inflexible to support the connected structure (FPC 3102 and AiM module 3106) without bending. The metal stiffener 3104 may have holes 3104a formed in or near the corners to connect the metal stiffener 3104 to the FPC 3102 and AiM module 3106 and to fix the metal stiffener 3104 to the laptop chassis.
The IF channel FPC 3102 may be extended beyond the AiM module connector region shown in
Another aspect of modular electronic device systems is the ability to upgrade components of the electronic device for sustainability. Modularization of the radio components (including various modems) and antennas in a laptop may be desirable. In particular, with the advance of new technologies, mobile devices like laptops and mobile phones are updated with each change in technology. Such updates may call for re-designing and certifying the system even for small updates.
Antennas are passive in nature and do not have an electronic identity. Thus, no closed loop mechanism exists to ensure radio-to-antenna compatibility. This creates complexities in certification aspects (such as federal communication commission (FCC) requirements) when updates are performed at the user end. It is thus desirable to provide a mechanism that ensures RF path equivalency of a user-upgraded system to an OEM certified system. In addition, issues associated with RF cabling and connector-related failures may lead to modem failures/non-usability. This may create a related discontinuity of user experience as such failures may not be identifiable by the system as no feedback may occur from antenna to the modem.
To better enable user end modification, an inherent feedback system may be employed to ensure certification compliance from wireless modem to antenna characteristics. This enables only the modem being replaced without changing the full system when there is an upgrade in the modem. To ensure the FCCID/ETSI certification is not violated, it is desirable to provide feedback between the modem and the antenna to ensure the equivalency between modem to antenna and to make sure the antenna is not changed as against delta certified upgrade options.
The feedback circuit 3202b at the radio side 3202 or radio host board end may be used to uniquely identify the antenna 3204a by the digital or analog characteristics presented at the antenna side 3204 over the above-mentioned DC path (digital communication or unique impedance). This unique identity may ensure that the antenna 3204a is identified and compatible with the radio side 3202 and specifically the modem 3202a.
The feedback circuit 3202b may verify the analog circuit 3204b and/or digital circuit 3204c at each power up (or based on manual activation). The RF path may only be enabled after this verification succeeds. The verification may not only enable antenna identification but also enable detection of open antenna situations (i.e., when a problem has occurred in the connection between the antenna side 3204 and the radio side 3202). Note that while this is directed to a mobile electronic device such as a laptop, similar circuitry may be employed in wireless base station antennas.
In addition, RF output power from the modem 3202a along with the overridden low frequency or DC path may be provided to the antenna 3204a and the analog circuit 3204b or digital circuit 3204c. If the RF path is DC decoupled, this may not impact the overridden DC or low frequency signal. The DC/low frequency path may be AC decoupled and hence the transmitted RF energy may not affect the analog circuit 3204b or digital circuit 3204c.
As one operation before enabling the RF path of the modem 3202a, the unique identity (impedance of the analog circuit 3204b and digital ID of digital circuit 3204c) may be determined by the feedback circuit 3202b. The feedback circuit 3202b may determine whether the antenna 3204a is compatible with the modem 3202a. The feedback circuit 3202b may enable the RF path may be subject to a correct identity being determined, and may disable the RF path if no identity or a non-valid identity is determined. If the feedback circuit 3202b determines that there is no antenna connected, or a different identity antenna is connected than an intended antenna, feedback may be transmitted to the radio as an antenna identity mismatch. Based on this feedback the RF transmit path may be disabled and a notification sent to users regarding the identity mismatch or lack of antenna being present (with different notifications being sent dependent on the circumstances detected).
As shown, the modem 3202a may be coupled to the signal path via an AC coupler (e.g., a capacitor), while the feedback circuit 3202b may be coupled to the signal path via a DC coupler (e.g., an inductor). In other embodiments, other circuits may be used to isolate the appropriate signals to limit the modem 3202a to receive/transmit only the RF signals, and the feedback circuit 3202b to receive only the DC signals.
Lighter, thinner and bezel-less system design is desired for electronic devices, notably laptops. In particular, many embodiments of laptops use a full metal chassis system with all six (or more) antennas on the laptop base. Antenna placement is challenging to design in such a system: antennas that are placed close to each other may yield poor isolation causing a drop in wireless throughput. In particular, the implementation of PCB antennas on the base of a laptop may use large plastic cut-outs in both the C-cover and D-cover. However, large metal cutouts are not acceptable from an industrial design perspective because of compromising the otherwise seamless design and making the system weaker.
To mitigate these issues, a united two slot antenna system may be provided in the metal chassis of the laptop with better isolation for a combination 5G/LTE/MIMO/WIFI-6E antenna design without any physical spacing. While generally antenna performance (impedance matching and radiation efficiency) deteriorates if antenna comes close to metal, the antenna architecture may operate with a minimum keep out zone (KOZ) from metal components in the system without compromising the mechanical structural performance. The antenna placement on the laptop base allows design of bezel-less or narrow bezel LID/display. The chassis design may have minimum plastic/non-conductive material in a metal chassis.
The slot antenna system in a laptop may include combined horizontal slots and/or combined vertical slots. For combined horizontal slots, shunt resistor-capacitor discrete components between a slot antenna at the C-cover side and metal shorting at the D-cover side may be used. The shunt capacitor-resistor (CR) circuit may improve the isolation for a specific frequency band. For combined vertical slots, a half-wavelength shorting stub may be used along with two slot antennas. The half-wavelength shorting stub may help to cancel the current phase coupling between the two antennas and thereby improve isolation. As shown, a total horizontal length of the slots may be a half-wavelength.
Various methods may be used to unite or merge two slot antennas while maintaining performance (efficiency, isolation) with no spacing, which also may improve miniaturization. The isolation is achieved by current and EM field cancellation between ports.
Antenna location in various electronic devices is of import as proximity to a human or a foreign object (e.g., <10 mm) may cause the antenna to become detuned and impact the overall wireless performance. The Specific Absorption Rate (SAR) may increase with decreasing human proximity to the antenna radiating elements. Previous locations of antenna components in laptops include antenna FPCs attached to or printed on a dielectric platform at the C-cover or D-cover of the laptop chassis. This, however, may result in a larger RF window opening on the opposite side of the FPC to enable the desired EM radiation characteristics.
In some embodiments, antenna design in a laptop may locate the antenna FPC near the speaker box (cavity) of a speaker to avoid being detuned.
The splitting of the speaker box 3702 may also avoid the human proximity issues that may otherwise result if the speaker box 3702 was not split and the antenna FPC 3704 attached to one surface of the speaker box 3702, which may result in the antenna FPC 3704 being close to the surface of the C-cover or D-cover and thus reduce the SAR due to the above proximity issues. That is, the placement of the antenna FPC 3704 between the speaker box 3702 portions may increase the distance from human proximity and thus increase SAR.
Example 1 is an electronic device comprising: a first section and a second section connected by a hinge assembly: and a mmWave antenna integrated module (AiM) module disposed in the hinge assembly.
In Example 2, the subject matter of Example 1 includes, wherein the electronic device is a laptop, the first section contains a display and the second section is a base of the laptop.
In Example 3, the subject matter of Examples 1-2 includes, wherein the AiM module is stationary within the hinge assembly.
In Example 4, the subject matter of Examples 1-3 includes, wherein the hinge assembly comprises: a rotational hinge portion attached to the first section and including a cylindrical portion, configured to rotate with rotation of the first section, a hinge mandrel attached to the second section, and a static hinge portion attached to the hinge mandrel and to which the AiM module is attached, the static hinge portion configured to pass through the cylindrical portion of the rotational hinge portion and remain stationary with rotation of the first section.
In Example 5, the subject matter of Example 4 includes, wherein the static hinge portion is modular and contains a first section attached to the hinge mandrel and a second section to which the AiM module is attached, the first section detachable from the second section.
In Example 6, the subject matter of Examples 4-5 includes, wherein the hinge assembly further comprises cable clamps that clamp to the static hinge portion, the cable clamps configured to retain cables directly coupled to the AiM module such that the cables remain stationary with rotation of the first section.
In Example 7, the subject matter of Example 6 includes, wherein: the cables extend parallel and adjacent to the rotational hinge portion, and the rotational hinge portion, the static hinge portion, the AiM module, and the cables are retained within a case.
Example 8 is an electronic device comprising: a first section and a second section connected by a hinge assembly: and a mmWave antenna integrated module (AiM) module at least one of magnetically or rotationally coupled to one of the first section or the second section.
In Example 9, the subject matter of Example 8 includes, wherein: the AiM module is rotationally coupled to one of the first section or the second section, and the AiM module is rotated in response to detection by the electronic device that a mmWave transmission is unable to be received from a base station that is in communication with the electronic device.
In Example 10, the subject matter of Example 9 includes, wherein the electronic device is configured to, in response to detection by the electronic device that the mmWave transmission is unable to be received from the base station: request, from the base station, base station coordinates, receive, from the base station in response to the request, the base station coordinates, determine a location and orientation of the electronic device, determine, based on the base station coordinates and location and orientation of the electronic device, an angle of rotation of the AiM module, and rotate the AiM module based on the angle of rotation.
In Example 11, the subject matter of Example 10 includes, wherein: after rotation of the AiM module based on the angle of rotation, determine that the mmWave transmission is able to be received from the base station, and in response to a determination that the mmWave transmission is able to be received from the base station, use beam steering to detect a change in at least one of the location or orientation of the electronic device and adjust the angle of rotation in response to detection of the change.
In Example 12, the subject matter of Examples 8-11 includes, wherein: the AiM module is magnetically coupled to one of the first section or the second section via a magnetic conductor, and a dongle contains a plurality of AiM modules disposed at an angle to each other, a printed circuit board (PCB) on which the AiM modules are disposed and to which the AiM modules are electrically connected via a flexible printed circuit (FPC), the magnetic conductor on which the PCB is disposed, and a case configured to retain the AiM modules, the PCB, and the magnetic conductor.
In Example 13, the subject matter of Example 12 includes, wherein the AiM modules are driven via a single intermediate frequency (IF) interface through a Double Pole Double Throw (DPDT) switch that is configured to switch the IF interface to one of the AIMs based on Power On (PON) signals of the AiM modules, the DPDT switch configured to turn on and connect to one of the AiM modules and enable the IF interface, power and reference signals for the one of the AiM modules.
In Example 14, the subject matter of Example 13 includes, wherein the dongle further contains pogo pins and radio frequency (RF) connectors, the pogo pins configured to supply power, reference signals, power enable, and IF signals to the AiM modules from the electronic device, the RF connectors including RF pogo pins each surrounded by a ground shield.
In Example 15, the subject matter of Examples 12-14 includes, °.
Example 16 is an electronic device comprising: a first section and a second section connected by a hinge assembly: and a shielded mmWave antenna integrated module (AiM) module coupled to one of the first section or the second section.
In Example 17, the subject matter of Example 16 includes, wherein: the AiM module is encircled by a substantially rectangular metal fence configured to provide radio frequency (RF) shielding for the AiM module, the AiM module is disposed on and electrically connected to a flexible printed circuit (FPC) on which the metal fence is disposed, the FPC is disposed on a metal stiffener to which the AiM module and FPC are attached, and the metal stiffener, the FPC, and the metal fence configured to spread heat of the AiM module.
In Example 18, the subject matter of Examples 16-17 includes, wherein: an antenna module contains the AiM module and one of an analog circuit or a digital circuit configured to provide an identifier, the identifier being a unique impedance for the analog circuit and a digital identification for the digital circuit, and the electronic device comprises: a modem coupled to a signal path via an alternating current (AC) coupler and configured to communicate radio frequency (RF) signals with the antenna module via the signal path, and a feedback circuit coupled to the signal path via a direct current (DC) coupler and configured to receive the identifier via the signal path.
In Example 19, the subject matter of Example 18 includes, wherein: the feedback circuit is configured to detect the identifier, and in response to no identifier being detected or a non-valid identifier being detected, the electronic device is configured to disable the signal path such that the modem is unable communicate the RF signals with the antenna module.
In Example 20, the subject matter of Example 19 includes, wherein in response to no identifier being detected or a non-valid identifier being detected, the electronic device is further configured to provide a user notification that depends on which of no identifier is detected and the non-valid identifier is detected.
In Example 21, the subject matter of Examples 16-20 includes, wherein: the electronic device is a laptop, the laptop comprises a C-cover and a D-cover that contain merged horizontal slot antennas in a metal portion of a chassis, the C-cover containing C-portions of the merged horizontal slot antennas and the D-cover containing D-portions of the merged horizontal slot antennas, the merged horizontal slot antennas are continuous and lack a gap therebetween, and resistor-capacitor discrete components are disposed in the C-portions, and metal shorting is disposed between the D-portions.
In Example 22, the subject matter of Examples 16-21 includes, wherein: the electronic device is a laptop, the laptop comprises merged vertical slot antennas in a metal portion of a chassis, the merged vertical slot antennas are continuous and lack a gap therebetween, and a total horizontal length of the merged vertical slot antennas forms a half wavelength shorting stub.
In Example 23, the subject matter of Examples 16-22 includes, wherein: the electronic device comprises a cavity that forms a speaker box, the speaker box comprises a common speaker box area and vertically-adjacent speaker box portions that each extend laterally from the common speaker box area, and a flexible printed circuit (FPC) electrically connected to the AiM module is disposed between the vertically-adjacent speaker box portions.
In Example 24, the subject matter of Example 23 includes, wherein: the electronic device is a laptop, the laptop comprises a C-cover and a D-cover between which the speaker box is disposed, a driver that is configured to provide sound for the speaker box is adjacent to the common speaker box area, and the speaker box is formed from plastic.
Example 25 is at least one machine-readable medium including instructions that, when executed by processing circuitry, cause the processing circuitry to perform operations to implement of any of Examples 1-24.
Example 26 is an apparatus comprising means to implement of any of Examples 1-24.
Example 27 is a system to implement of any of Examples 1-24.
Example 28 is a method to implement of any of Examples 1-24.
Although an embodiment has been described with reference to specific example embodiments, it will be evident that various modifications and changes may be made to these embodiments without departing from the broader scope of the present disclosure. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense. The accompanying drawings that form a part hereof show, by way of illustration, and not of limitation, specific embodiments in which the subject matter may be practiced. The embodiments illustrated are described in sufficient detail to enable those skilled in the art to practice the teachings disclosed herein. Other embodiments may be utilized and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. This Detailed Description, therefore, is not to be taken in a limiting sense, and the scope of various embodiments is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled.
The subject matter may be referred to herein, individually and/or collectively, by the term “embodiment” merely for convenience and without intending to voluntarily limit the scope of this application to any single inventive concept if more than one is in fact disclosed. Thus, although specific embodiments have been illustrated and described herein, it should be appreciated that any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description.
In this document, the terms “a” or “an” are used, as is common in patent documents, to include one or more than one, independent of any other instances or usages of “at least one” or “one or more.” In this document, the term “or” is used to refer to a nonexclusive or, such that “A or B” includes “A but not B,” “B but not A,” and “A and B,” unless otherwise indicated. In this document, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Also, in the following claims, the terms “including” and “comprising” are open-ended, that is, a system, UE, article, composition, formulation, or process that includes elements in addition to those listed after such a term in a claim are still deemed to fall within the scope of that claim. Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects.
The Abstract of the Disclosure is provided to comply with 37 C.F.R. § 1.72(b), requiring an abstract that will allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it may be seen that various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.