Patent Grant
11482772
The present invention relates to the field of wireless portable devices, and more specifically to multiband and/or multifunctional wireless devices, normally requiring operation at different communication standards.
Wireless electronic devices typically handle one or more cellular communication standards, and/or wireless connectivity standards, and/or broadcast standards, each standard being allocated in one or more frequency bands, and the frequency bands being contained within one or more regions of the electromagnetic spectrum. More and more, wireless devices require operation at different communication standards, requiring large operation bandwidths and/or high efficiencies for covering the market needs.
For that purpose, nowadays a wireless electronic device must include a radiating system capable of operating in one or more frequency regions with an acceptable radio-electric performance, typically in terms of, for instance, reflection coefficient and/or impedance bandwidth and/or gain and/or efficiency and/or radiation pattern. Besides, the integration of the radiating system within the wireless electronic device must be effective to ensure that the overall device attains good radio-electric performance, evaluated such as for example in terms of radiated power, received power, sensitivity, without being disrupted by nearby electronic components and/or human loading.
The space within a wireless electronic device is usually limited and the radiating system has to be fitted in the available space. So, the radiating system is expected to be small to occupy as little space as possible within the device. The available space is even more critical in the case in which the wireless device is a multifunctional wireless device, requiring operation at more than one communication standards for covering several communication services. Besides radio-electric performance, not-enough small sizes and interaction with human body and nearby electronic components, one of the current limitations of prior-art is that generally the antenna system is customized for every particular wireless handheld device model.
Developing a wireless device including a radiating system of small dimensions that features a flexible configuration, able to cover multiple bands and able to operate at least at one communication standard, would be an advantageous solution suitable for covering real market needs.
There are in the market booster solutions that cover operation at frequency bands allocated in one or more frequency regions. As described in the owned patent application U.S. Pat. No. 9,130,259 B2, a booster element is a non-resonant element that excites at least a radiation mode in a ground plane layer comprised in the radiating structure integrated in the wireless device. One of the advantages of booster solutions is the reduced size of the booster element or elements comprised in the radiating system that characterizes these solutions. However, solutions covering large bandwidths and/or providing multiband operation covering bands at low frequencies, like for example LTE700, and more particularly for the case of multi-region solutions operating at both low-frequency and high-frequency regions, like for example solutions requiring large bandwidths covering ranges from 698 MHz to 960 MHz and from 1710 MHz to 2690 MHz, require a minimum size and/or volume of the booster element or more than one or even more than two booster elements. There also exists booster solutions as disclosed in US 2017/0202058 A1 including a radiofrequency system comprising tunable components that allow a reduction of the size and/or the number of booster elements, reducing the space needed to allocate the antenna system into the wireless device. Nevertheless, the bandwidths reached by a tunable solution are not large enough to cover the bandwidth demands related to a wireless device, particularly in environments where spectrum aggregation and carrier aggregation requires an instantaneous use of the entire spectrum as in the present invention.
U.S. Pat. No. 9,331,389 B2 also provides a stand-alone component comprising at least two radiation boosters embedded in a unitary dielectric-material structure or support. The radiation boosters comprised in the stand-alone component can be connected between them by an external circuitry, as for instance a SMD component, so as to form a single electrically functioning unit. The maximum size of a radiation booster is smaller than 1/30 times the wavelength of the lowest frequency of the frequency region or regions of operation of the device. In some examples such a size can be smaller than 1/20 times the wavelength. Another characteristic of radiation boosters concerns its radiation characteristics, featuring a poor radiation efficiency when they are considered as a stand-alone element, which is in concordance with their non-resonant nature. With the purpose of providing an illustrative example of the radiation properties of a booster, a test platform of characterization is provided in patent application WO 2016/012507A1. The test platform comprises a square conductive surface and a connector electrically connected to the booster to be characterized. For example, such a platform is described in more detail in WO 2016/012507A1 together with the radiation and antenna efficiencies measured at low frequencies, below 1.0 GHz, for the case of a booster bar element, arranged so that its largest dimension is perpendicular to the conductive surface. It has been measured a radiation efficiency below 5% for the booster element.
Other antenna technologies developed for communications systems comprised in multiband wireless devices have focused on solutions containing antenna elements instead of non-resonant elements for providing operation at the sought bands. The invention disclosed in the owned patent application U.S. Pat. No. 9,130,267B2 relates to multiband wireless devices including an antenna system operative also at multiple frequency regions, the antenna system matched by a matching and a tuning system. In another prior-art commonly owned patent application U.S. Ser. No. 15/621,792 there is disclosed a radiating system that operates in multiple bands normally allocated in several frequency regions, the radiating system comprising an antenna element solution including a radiofrequency system comprising at least a matching network configured for providing operation at both low-frequency and high-frequency regions. The length of the antenna element is optimized in such a way that it helps to maximize bandwidth at the low frequency region (LFR, for example 698 MHz-960 Mz) and at the high frequency region (HFR, 1710 MHz-2690 MHz) at the same time. In this sense, there is a trade-off when designing a multi-band antenna based on the solution since if the length is large to optimize the LFR, it could drop the performance at the HFR. On the contrary, if the length is made short in order to optimize the performance at HFR, the performance at LFR drops. So, when more challenging performances are sought, current solutions found in prior-art usually are not able to achieve the demanding requirements. A solution according to the present invention provides improved radio-electric performances covering the required operation needs related to current wireless devices.
Other antennas comprising multiple elements usually configured for operating at different bands, like for example U.S. Pat. No. 6,664,930 B2 or U.S. Pat. No. 5,504,494, are found in prior-art. Normally, the elements comprised in those multi-element antennas found in prior-art are usually radiating portions contained in the whole antenna. The radio-electric contribution of those elements to the operation of the whole antenna is normally configured for each element with a particular configuration, which means that each radiating portion is specifically configured to contribute to the whole radiation process of the antenna and, consequently, to the communication features of the wireless device.
Additionally, an antenna system according to the present invention can also be configured for providing MIMO operation. In prior-art there already exist MIMO solutions including antenna structures comprising more than one antenna elements decoupled between them by a multi-mode antenna structure not including a decoupling network U.S. Pat. No. 8,547,289 B2.
Therefore, a wireless device not requiring a complex and large antenna able to provide suitable radio-frequency performance in a wide range of communication bands within multiple regions of the electromagnetic spectrum and able to cover different communication standards, would be advantageous. A wireless device according to this invention fulfills those requirements by including a simple, small and modular antenna system that provides flexibility in allocating frequency bands and versatility for covering different communication services. A better performance, evaluated as for example in terms of bandwidth and/or efficiencies, than current solutions such as for example CUBE mXTEND™ (FR01-S4-250) is achieved with a wireless device related to the present invention when including low-frequency bands as for instance mobile LTE700 band (698 MHz-746 MHz). Furthermore, an antenna system and/or a multi-section antenna component related to this invention, which can be easily integrated in such a wireless device, is advantageously designed and fabricated in one single piece, allowing a reduction of the production cost of the antenna component and the antenna system, since the antenna system does not need different pieces for providing operation at different communication standards. Additionally, an antenna component related to this invention can also be a thin, low-profile component or piece, able to be allocated in wireless devices featuring reduced profiles.
It is an object of the present invention to provide a wireless electronic device (such as for instance but not limited to a mobile phone, a smartphone, a phablet, a tablet, a PDA, an MP3 player, a headset, a GPS system, a laptop computer, a gaming device, a digital camera, a wearable device like a smart watch, a sensor, or generally a multifunction wireless device which combines the functionality of multiple devices) comprising a radiating system that covers a wide range of radiofrequencies able to handle multiple communication bands while exhibiting a suitable radiofrequency performance. More concretely, it is the aim of the present invention to provide a wireless device and a simple and modular antenna system, as well as a multi-section or multi-stage antenna component included in the antenna system, able to provide different functionalities to the device depending on its communication requirements. A wireless device according to the present invention includes a modular antenna system comprising at least a multi-section antenna component configured for providing operation at multiple bands within at least one communication standard. An antenna system according to this invention, containing at least one multi-section antenna component that comprises at least two sections, provides different functional configurations providing a flexible and versatile antenna system able to cover different communication services. In some antenna system embodiments, at least two antenna components comprised in the antenna system are electrically connected between them. Additionally, an antenna system and/or a multi-section antenna component related to this invention is advantageously designed and fabricated in one single piece, which reduces the production cost of the antenna component and the antenna system, since the antenna system does not need, in most embodiments, different pieces for providing operation at different communication standards. The antenna component is, in some embodiments, a thin, low-profile component or piece, able to be allocated in wireless devices featuring reduced profiles. So, the thickness of an antenna component related to this invention is, in some embodiments, a value between 1/60 and 1/45000 times the free-space wavelength corresponding to the lowest frequency of operation of the device that comprises an antenna system including the antenna component. In some other embodiments the thickness features a value between 1/60 and 1/5000 times, or between 1/70 and 1/500 times, or even between 1/100 and 1/500, or even between 1/140 and 1/450, or even between 1/200 and 1/450 the wavelength.
A wireless device related to the present invention contains a radiating system, or radiating structure, comprising at least one ground plane, normally a ground plane layer mounted on a PCB, at least one port and a modular multi-stage antenna system 102b, 102c, 202 containing at least one antenna component, like 101b, 101c, 201 elements illustrated in
In the context of the present invention the terms radiating system and radiating structure are used interchangeably. A radiating system, or radiating structure, according to the present invention includes at least one port, each of the at least one port comprising a feeding system that connects one of the sections comprised in the antenna component comprised in the antenna system integrated in the wireless device to the corresponding port. At least a matching network is included in the feeding system, with the purpose of matching the device at the sought frequency bands at the corresponding port, the port being defined between a terminal of the at least one matching network included in the feeding system, and the at least ground plane layer comprised in the radiating structure. The use of a multi-section antenna component in the antenna system provides flexibility in the allocation of frequency bands. Depending on the functionality requirements demanded for the wireless device that integrate the modular multi-section antenna system, a radiating system or radiating structure included in a wireless device according to this invention is accordingly configured for covering operation at the required communication standards.
A modular multi-stage antenna system related to this invention provides flexibility and ease of integration of the antenna system within the available space in the wireless device. The antenna components comprised in the modular antenna system can be allocated in different arrangements, as for example the ones presented in
As mentioned before, an antenna system according to the present invention includes at least a multi-section antenna component. A multi-section antenna component related to the present invention comprises at least two sections, each section comprising one conductive element. In some embodiments of an antenna system related to this invention, at least one of the multi-section antenna components comprised in the antenna system described herein, contains at least one flat section, the section featuring a two-dimensional shape or geometry, i.e., in the context of the present invention a shape with a thickness which is negligible in terms of the operation wavelength (e.g. the 1/45.000 of the free-space wavelength to the lowest frequency of operation of the device). In the context of the invention here disclosed the frequency range of operation of a device or a radiating system related to this invention refers to a frequency range in which the device or radiating system provides operation, including at least a first frequency range, the first frequency range comprising a first highest frequency and a first lowest frequency. The operation frequency range comprising a lowest frequency of operation and a highest frequency of operation. In some embodiments, the lowest frequency of operation is the first lowest frequency and/or the highest frequency of operation is the first highest frequency. Other embodiments of antenna system contain multi-section antenna components comprising only volumetric sections, or no-flat sections, which occupy or fulfill a volume, the sections featuring a three-dimensional shape. In general, a volumetric section comprised in an antenna component related to this invention contains a volumetric conductive element, also featuring a three-dimensional shape. Other embodiments of antenna system containing antenna components wherein at least one of the antenna components comprises at least one volumetric section, contain at least one volumetric section comprising at least one flat conductive element characterized by a two-dimensional shape or geometry, as defined before. So, some embodiments related to an antenna component according to the present invention are volumetric structures but not the conductive elements contained in the sections comprised in the antenna component.
Additionally, the conductive elements or sections included in an antenna component disclosed herein are arranged at one or more layers or levels of conductive elements or sections. The conductive elements or sections comprised in a same layer comprised in the antenna component are contained in a same direction not perpendicular to the ground plane layer included in a radiating structure according to this invention, also comprising the antenna component. The conductive elements or at least two conductive elements, arranged in a same layer or level or at different ones, included in an antenna component are, in some embodiments, electrically-connected between them. So, an antenna component related to the present invention comprises at least two sections, including a conductive element each, connected between them in some embodiments, in different configurations, for providing the sought communication requirements with a versatile antenna system. In some of the multi-section antenna component examples containing at least two conductive elements arranged at different layers, the connections between the conductive elements from one layer and the conductive elements from another layer are usually implemented with vias, but those connections are not limited to this type of connection. In some examples, the conductive elements arranged at different layers are not connected by a physical electrical connection but they are coupled between them, the conductive elements usually overlapped between them when one layer is projected to the other. Some of the embodiments including conductive elements in a same layer connected between them are connected by a simple short-circuit connection. In other embodiments, the conductive elements are connected by an electrical connection containing at least one electrical circuit element, as for example, but not limited to, electronic components, passive or active components, or transmission lines, or filters, or conductive traces or strips, or combinations of those elements. In the context of the invention here disclosed, the electrical connection does not prevent from geometrically identifying the conductive elements included in different sections, the conductive elements spaced apart by a gap in a first direction. Furthermore, some embodiments of an antenna system described in the context of this invention contain antenna components connected between them, independently from the connections included between sections comprised in the multi-section antenna components comprised in the antenna system.
According to the dimensions related to a conductive element or a group of conductive elements that are electrically connected one to another, comprised in an antenna component according to the present invention, a multi-section antenna component related to the invention comprises booster elements and/or radiating elements. A booster element has a maximum size smaller than 1/20 times the free-space wavelength corresponding to the lowest frequency of operation. In some embodiments the maximum size of the booster element is smaller than 1/30 times the wavelength. The maximum size is defined by the largest dimension of a booster box that completely encloses the booster element, and in which the booster is inscribed. More specifically, a booster box for a booster is defined as being the minimum-sized parallelepiped of square or rectangular faces that completely encloses the booster and wherein each one of the faces of the minimum sized parallelepiped is tangent to at least a point of the booster. In some examples, one of the dimensions of a booster box is substantially smaller than any of the other two dimensions, or even be close to zero. In such cases, the booster box collapses to a practically two-dimensional entity. The term dimension then refers to an edge between two faces of the parallelepiped. In the context of the present invention, a conductive element contained in a section or a set or group of conductive elements connected between them comprised in an antenna component of the present disclosure, featuring a maximum size bigger than 1/20 times the wavelength, is not a booster but a radiating element. Additionally, a booster element in some embodiments is characterized by a resonance frequency bigger than or equal to 3 times the lowest frequency of operation of the device. Some possible minimum ratios between the resonance frequency of a booster element and the lowest frequency of operation of the device are 3.0, 3.4, 3.8, 4.2, 4.6, 5.0, 5.4, 6.0 or even 7.0.
Another difference between a booster element and a radiating element, apart from their maximum size relative to the operation wavelength, are, in some embodiments, the radiation properties related to those elements. Patent WO 2016/012507 A1 provides an example of the efficiencies corresponding to a booster bar when measured at low frequencies around 900 MHz in a test platform (as described on: page 20, lines 4 to 33; page 36, lines 21 to 32; and page 37, lines 1 to 30 of patent document WO 2016/012507 A1) where the booster is arranged so that its largest dimension is perpendicular to a conductive surface. It has been measured a radiation efficiency below 5% for the booster element. Accordingly, some embodiments of a multi-section antenna component described in the context of the present invention, also characterized in the mentioned test conditions particularly at low frequencies like for example 900 MHz, feature efficiencies higher than 5%.
A multi-section antenna component related to the present invention, comprising at least two sections, connected between them in some embodiments, features a maximum size bigger than 1/30 times the free-space wavelength corresponding to the lowest frequency of operation of the radiating system or the device. The maximum size being also smaller than ⅕ times the wavelength. In some embodiments, the multi-section antenna component features a maximum size bigger than 1/20 times the wavelength. Additionally, according to the dimensions related to a conductive element or a group of conductive elements that are electrically connected one to another, comprised in an antenna component according to the present invention, a multi-section antenna component related to the invention comprises booster elements and/or radiating elements. So, some antenna system embodiments related to the present invention comprises at least a multi-section antenna component containing at least a radiating element, as defined in the context of the present invention, featuring, as described before, a maximum size bigger than 1/20 times a free-space wavelength corresponding to a lowest frequency of operation of the device. Some other antenna component embodiments included in an antenna system related to this invention comprise a conductive element or group of conductive elements electrically-connected between them featuring an electrical length larger than 1/10 times the free-space wavelength corresponding to a frequency three times the lowest frequency of operation of the device.
An illustrative example of a multi-section antenna component related to the present invention is provided in
Another aspect of the invention relates to a method for providing a wireless device with a radiating system, the method comprising: providing an antenna system comprising at least one antenna component, the at least one antenna component containing at least two conductive elements; providing the at least one antenna component on a first portion of a printed circuit board of the wireless device, the printed circuit board comprising at least one ground plane layer in a second portion thereof and a ground plane clearance in the first portion; and electrically connecting a first matching network to the antenna system, the first matching network being adapted to impedance match the antenna system to a first frequency range at a first port; the at least one antenna component has a maximum size bigger than 1/30 times and smaller than ⅕ times a free-space wavelength corresponding to a first lowest frequency of the first frequency range; and at least two of the at least two conductive elements are spaced apart.
The method makes possible to provide a wireless device comprising a versatile radiating structure based on at least one antenna component comprising a plurality of conductive elements. Each matching network (e.g. the first matching network) of the radiating system is adjusted to match the tuned antenna component to a frequency range of operation at a port thereof.
At least two of the at least two conductive elements, or each of the at least two conductive elements, are separated by a gap, the gap being a minimum distance between each pair of conductive elements. In some embodiments, the separations between different conductive elements correspond to a same gap, whereas in some other embodiments they correspond to different gaps.
In some embodiments, the gap between the at least two of the at least two conductive elements of the at least one antenna component (e.g. a first antenna component thereof, a second antenna component thereof, etc.), or the gap between the at least two conductive elements of the at least one antenna component, comprises a length greater than or equal to 0.25 mm and less than or equal to 4.0 mm. In some other embodiments, the gap comprises a length greater than or equal to 0.5 mm and less than or equal to 2.0 mm. In some examples, the minimum distance corresponding to the length of the gap is measured in a first direction that is parallel to the at least one ground plane layer, namely, the first direction corresponds to a vector contained in a plane of the ground plane layer.
In some embodiments, the first frequency range comprises the first lowest frequency and a first highest frequency that is equal to or less than 0.960 GHz. In these embodiments, the first lowest frequency is equal to or greater than 0.698 GHz.
In some embodiments, the first frequency range has a bandwidth of at least 15.0%. In some of these embodiments, the bandwidth of the first frequency range is of at least 31.0%.
In some embodiments, the at least one antenna component is characterized by a maximum size bigger than 1/30 times and smaller than ⅕ times a free-space wavelength corresponding to the first lowest frequency.
In some embodiments, the method further comprises electrically connecting the at least two conductive elements with a short-circuit or at least one electronic component.
The at least one electronic component may be e.g. an inductor, a capacitor, or a combination thereof. In some cases, the at least one electronic component comprises a filter, in which case the electrical length is made different for different frequencies, or an isolation bridge, in which case the wireless device may be provided with MIMO with a same antenna component, for instance.
In some embodiments, the at least two conductive elements comprise three conductive elements, the three conductive elements being provided in a piece comprising a dielectric material. In some of these embodiments, the first matching network is electrically connected to a first conductive element of the three conductive elements. In some of these embodiments, the method further comprises electrically connecting a second matching network to a third conductive element of the three conductive elements, the second matching network being adapted to impedance match the antenna system to a second frequency range at a second port. In some of these embodiments, the method further comprises electrically connecting the first conductive element to a second conductive element of the three conductive elements with a short-circuit or at least one electronic component. In some of these embodiments, the method further comprises electrically connecting the third conductive element to one of the first and second conductive elements with a filter or an isolation bridge.
The at least one electronic component may be e.g. an inductor, a capacitor, or a combination thereof.
In some embodiments, at least two of the at least three conductive elements are arranged on different layers of the at least one antenna component. In some embodiments, the method further comprises electrically connecting, with at least one via, one or more conductive elements of the at least three conductive elements with another one or more conductive elements of the at least three conductive elements, the one or more conductive elements being arranged on a first layer of the at least one component, and the another one or more conductive elements being arranged on a second layer of the at least one component.
In some embodiments, the second frequency range comprises a second highest frequency that is equal to or less than 3.80 GHz and a second lowest frequency that is equal to or greater than 1.71 GHz.
In some embodiments, the at least one antenna component has a thickness smaller than 1/60 times a free-space wavelength corresponding to the first lowest frequency. In some embodiments, the at least one antenna component has a thickness smaller than 1/60 times a free-space wavelength corresponding to the second lowest frequency. That is, each antenna component of the at least one antenna component features a reduced thickness that eases the integration of the same within the wireless device. Each antenna component of the at least one antenna component may include a piece comprising a dielectric material on which the at least two conductive elements are provided. In some cases, the thickness of the at least one antenna component corresponds to a thickness of the piece, or the thickness of both the piece and one conductive element provided thereon, or the thickness of both the piece and the at least two conductive elements provided thereon.
In some embodiments, the at least one antenna component comprises a radiating element. In some of these embodiments, the radiating element has a maximum size bigger than 1/20 times a free-space wavelength corresponding to the first lowest frequency or the second lowest frequency.
Similar advantages as those described for previous aspects of the invention may also be applicable to this aspect of the invention.
The mentioned and further features and advantages of the invention become more apparent in view of the detailed description, which follows this drawings description with some particular examples of the invention, referenced by the accompanying drawings, given for purposes of illustration only and in no way meant as a definition of the limits of the invention.
Below, some other embodiments related to the present invention are described. These embodiments are provided as illustrative but not as limiting examples of the invention here disclosed. In the context of the present invention, the characteristics and teachings related to each embodiment are combinable with the features of other embodiments of the invention.
An embodiment of a multi-section reversible antenna component comprising a different number of sections at two opposite outer faces, more specifically at a top face and at a bottom face, of a support that contains the antenna component, arranged in a single row, is provided in
The profiles of some multi-layer embodiments of an antenna component related to the present invention are provided in
Other embodiments related to a multi-section antenna component according to the invention are provided in
An embodiment representing an example of antenna component featuring a miniaturized-shape is provided in
Other embodiments of a multi-section antenna component related to the present invention are presented in
As already mentioned, a radiating structure according to the present invention includes at least one port. Each of the at least one port comprises a feeding system that connects one of the sections comprised in the antenna component comprised in the antenna system integrated in the wireless device to the corresponding port. At least a matching network is included in the feeding system, with the purpose of matching the device at the sought frequency bands at the corresponding port. The use of a multi-section antenna component in the antenna system provides flexibility in the allocation of frequency bands. Depending on the functionality requirements demanded for the wireless device that integrate the modular multi-section antenna system, an embodiment according to this invention is configured for covering operation at the required communication standards. Some of the possible configurations implemented with an antenna system related to the invention are provided hereinafter as illustrative examples.
In some embodiments, as for example the ones provided in
Other embodiments of a wireless device related to the present invention include more than one port. Some of those multi-port embodiments comprise an antenna system comprising at least one antenna component including at least two sections, arranged in a same layer, or sections blocks electrically-connected between them. With the purpose of providing two illustrative examples,
Other embodiments of a radiating system included in a wireless device related to the present invention feature a reduced ground plane clearance 2001 where the modular antenna system 2002 is advantageously integrated, as shown in the example from
Other embodiments of a radiating system containing a multi-stage antenna system related to the present invention provide simultaneous operation in at least one common frequency range at more than one input/output port. Those embodiments advantageously comprise at least one isolation bridge, the isolation bridge being a connection between at least two sections comprised in a multi-section antenna component included in the antenna system, or a connection between two or more antenna components comprised in the antenna system, the isolation bridge externally connected to the multi-stage antenna component or antenna system structure. The isolation bridge connection allows to isolate or to decouple the ports included in the radiating system. Since an isolation bridge related to the present invention is an external element added to the antenna component or antenna system structure, the antenna and radiating systems related to this invention that provide simultaneous operation at different ports are flexible systems able to admit different configurations for achieving the sought isolation characteristics, contrary to current systems found in prior-art that include a fix decoupling element or system in their antenna system structure (U.S. Pat. No. 8,547,289 B2). An isolation bridge related to the present invention comprises at least a conductor element, typically being a conductive trace or strip in some embodiments, but not limited to those elements. Additionally, in some embodiments, the isolation bridge further comprises a reactive component, like a capacitor or an inductor for example, or further comprises in other embodiments a combination of reactive components arranged in parallel and/or in series, or even further includes a resistance in other embodiments. In other examples, the isolation bridge additionally includes a smart tuner, containing at least one active or variable circuit component. The embodiments including an isolation bridge or bridges comprising a fix configuration of elements provide an isolation between ports adjusted to a fix frequency band or bands. Advantageously, the embodiments containing an isolation bridge that includes a smart tuner are able to tune the isolation functionality to a required frequency band or bands, providing a more flexible antenna and radiating systems able to provide simultaneous operation at more than one port. So, a multi-stage antenna system according to the present invention can also be integrated, for instance in MIMO devices, and more generally, in wireless devices that provide performance diversity.
An illustrative example of a multi-section antenna component mounted in a two-layers support, each layer comprising more than one section arranged in a matrix layout, configured for providing MIMO operation is presented in
An embodiment of a multi-section antenna component, more specifically a two-sections antenna component with a linear arrangement, comprised in a modular antenna system related to the present invention included in the radiating system of a wireless device that provides simultaneous operation in at least one common frequency range at more than one ports is provided in
An embodiment of a radiating system included in a wireless device related to this invention including an antenna system that comprises an antenna component including two sections, is provided in
Another example of matching network used for matching the embodiment from
An embodiment of a two-layers multi-section antenna component comprising three sections per layer, each section including one conductive element, is provided in
Another embodiment of a radiating structure related to the present invention is presented in
The input reflection coefficient related to each port comprised in the embodiment presented in
Examples of matching networks used for matching the radiating structure embodiment described in
Other radiating system embodiments that contain the antenna component included in the embodiments from
The following embodiments, shown in
| Number | Date | Country | Kind |
|---|---|---|---|
| 18158695 | Feb 2018 | EP | regional |
This application is a continuation of International Application No. PCT/EP2018/068436, filed on Jul. 6, 2018, which claims priority under 35 U.S.C. § 119 to Application No. EP 18158695.9 filed on Feb. 26, 2018, which claims the benefit of U.S. Provisional Application No. 62/634,943, filed on Feb. 26, 2018, and U.S. Provisional Application No. 62/529,032, filed on Jul. 6, 2017, the entire contents of which are hereby incorporated by reference.
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| Number | Date | Country | |
|---|---|---|---|
| 20200176855 A1 | Jun 2020 | US |
| Number | Date | Country | |
|---|---|---|---|
| 62634943 | Feb 2018 | US | |
| 62529032 | Jul 2017 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/EP2018/068436 | Jul 2018 | US |
| Child | 16731755 | US |
