Various exemplary embodiments disclosed herein relate generally to a hybrid connector for high speed wireline communications.
Wireline communication is the technology of choice when high data rates need to be transported e.g., for streaming high definition video content. These cables are terminated with connectors that hold a number of pins. The number of pins in large part determines the size and cost of the connector. The number of pins is set by the data rate that is supported. Typically, multiple parallel data lanes are used to communicate data in parallel, each lane carrying a certain maximum data rate. A general trend is that higher and higher data rates need to be supported, and it can therefore be expected that there will be a necessity to further increase the number of pins in future connectors to support these increasing data rates.
A summary of various exemplary embodiments is presented below. Some simplifications and omissions may be made in the following summary, which is intended to highlight and introduce some aspects of the various exemplary embodiments, but not to limit the scope of the invention. Detailed descriptions of an exemplary embodiment adequate to allow those of ordinary skill in the art to make and use the inventive concepts will follow in later sections.
Various embodiments relate to a hybrid connector for a data cable, including: a galvanic connector having a plurality of connectors configured to make a galvanic connection with a plurality of connectors in a receptacle wherein a first portion of the plurality connectors are power connections and a second portion of the plurality of connectors are data connections; a plurality of millimeter wave wireless transmitter/receivers (TRx) configured to transmit/receive data from/to the hybrid connector; and a plurality of millimeter wave antennas surrounding the galvanic connector each antenna connected to one of the plurality of millimeter wave TRx's, wherein the plurality of millimeter wave antennas are configured to transmit/receive millimeter wave data signals.
Various embodiments are described, wherein the plurality of millimeter wave antennas are configured so that the hybrid connector is flippable.
Various embodiments are described, wherein half of the plurality of millimeter wave antennas have a polarization that is substantially orthogonal to the polarity of the other half of the plurality of millimeter wave antennas.
Various embodiments are described, wherein the plurality of millimeter wave antennas includes eight antennas and four millimeter wave TRx's.
Various embodiments are described, wherein the eight millimeter wave antennas are configured to in pairs surrounding the galvanic connector.
Various embodiments are described, wherein one antenna of each of the antenna pairs is closer to the galvanic connector and the other antenna of each of the antenna pairs if farther from the galvanic connector.
Various embodiments are described, wherein the antennas of each of the antenna pairs are substantially colinear.
Various embodiments are described, wherein the plurality of antennas are side-coupled antennas.
Various embodiments are described, wherein one of the plurality of antennas is one of a Yagi-Uda antenna and a Vivaldi antenna.
Various embodiments are described, wherein the galvanic connector is a USB-C connector.
Various embodiments are described, wherein each of the plurality of TRx's are connected to two of the plurality of a plurality of millimeter wave antennas via a plurality of switches so that the hybrid connector is flippable.
Various embodiments are described, wherein one of the plurality of TRx's modulate a data signal onto the power connections.
Further various embodiments relate to a data cable, including: a first hybrid connector; a second hybrid connector; and plurality of wires connecting the first and second hybrid connectors, wherein each of the first and second hybrid connectors comprise: a galvanic connector having a plurality of connectors configured to make a galvanic connection with a plurality of connectors in a receptacle wherein a first portion of the plurality connectors are power connections and a second portion of the plurality of connectors are data connections; a plurality of millimeter wave wireless transmitter/receivers (TRx) configured to transmit/receive data from/to the hybrid connector; and a plurality of millimeter wave antennas surrounding the galvanic connector each antenna connected to one of the plurality of millimeter wave TRx's, wherein the plurality of millimeter wave antennas are configured to transmit/receive millimeter wave data signals.
Various embodiments are described, wherein the plurality of millimeter wave antennas for each of the first and second hybrid connectors are configured so that the first and second hybrid connectors are flippable.
Various embodiments are described, wherein half of the plurality of millimeter wave antennas for each of the first and second hybrid connectors have a polarization that is substantially orthogonal to the polarity of the other half of the plurality of millimeter wave antennas.
Various embodiments are described, wherein the plurality of millimeter wave antennas for each of the first and second hybrid connectors includes eight antennas and four millimeter wave TRx's.
Various embodiments are described, wherein the eight millimeter wave antennas for each of the first and second hybrid connectors are configured to in pairs surrounding the galvanic connector.
Various embodiments are described, wherein the plurality of antennas are side-coupled antennas.
Various embodiments are described, wherein one of the plurality of antennas is one of a Yagi-Uda antenna and a Vivaldi antenna.
Various embodiments are described, wherein the galvanic connector for each of the first and second hybrid connectors is a USB-C connector.
Further various embodiments relate to a hybrid receptacle configured to receive a hybrid connector of a data cable, including: a galvanic connector having a plurality of connectors configured to make a galvanic connection with a plurality of connectors in the hybrid connector wherein a first portion of the plurality connectors are power connections and a second portion of the plurality of connectors are data connections; a plurality of millimeter wave wireless transmitter/receivers (TRx) configured to transmit/receive data from/to the hybrid receptacle; and a plurality of millimeter wave antennas surrounding the galvanic connector each antenna connected to one of the plurality of millimeter wave TRx's, wherein the plurality of millimeter wave antennas are configured to transmit/receive millimeter wave data signals.
Various embodiments are described, wherein the plurality of millimeter wave antennas are configured so that the hybrid connector is flippable.
Various embodiments are described, wherein half of the plurality of millimeter wave antennas have a polarization that is substantially orthogonal to the polarity of the other half of the plurality of millimeter wave antennas.
Various embodiments are described, wherein the plurality of millimeter wave antennas includes eight antennas and four millimeter wave TRx's.
Various embodiments are described, wherein the eight millimeter wave antennas are configured to in pairs surrounding the galvanic connector.
Various embodiments are described, wherein the plurality of antennas are side-coupled antennas.
Various embodiments are described, wherein one of the plurality of antennas is one of a Yagi-Uda antenna and a Vivaldi antenna.
Various embodiments are described, wherein the galvanic connector is a USB-C connector.
Various embodiments are described, wherein each of the plurality of TRx's are connected to two of the plurality of a plurality of millimeter wave antennas via a plurality of switches so that the hybrid connector is flippable.
Various embodiments are described, wherein one of the plurality of TRx's modulate a data signal onto the power connections.
In order to better understand various exemplary embodiments, reference is made to the accompanying drawings, wherein:
To facilitate understanding, identical reference numerals have been used to designate elements having substantially the same or similar structure and/or substantially the same or similar function.
The description and drawings illustrate the principles of the invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the invention and are included within its scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. Additionally, the term, “or,” as used herein, refers to a non-exclusive or (i.e., and/or), unless otherwise indicated (e.g., “or else” or “or in the alternative”). Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments.
Extending the trend of increasing data rates and smaller connectors will require more and smaller pins residing inside the connector. This will result in a number of issues including: tighter tolerance on assembly which leads to increased manufacturing cost; a fragile connector that may limit the number of mating cycles; sensitivity to dirt and mechanical damage, e.g., caused by someone tripping over the cable; and new standards will not be backward compatible with mechanical layout of existing connectors and ports, such as currently being deployed for USB-C. Therefore, a new connector with increased bandwidth that is backward compatible to USB-C is desirable.
Embodiments of a hybrid connector combining galvanic connections that carry power and data, together with a short range wireless connection to further increase data rates will be described herein. The wireless link will use millimeter wave transmission frequencies because antennas at millimeter wave will easily fit inside the connector, and large available bandwidth allowing for high data rate is available. Further, the short distance between a connector and a receptor results in a high signal to noise ratio (SNR) throughout the channel allowing for a high data rate, and the wireless link does not suffer from line-of-sight issues normally associated with millimeter wave.
The cable 160 includes data lines 164, power lines 166, first hybrid connector 130, and second hybrid connector 150. The first hybrid connector has power lines 136 that transfer power between the power lines 126 of the first device and the powerlines 166 of the cable 160. The power lines 136 also provide power to the TRx 132 and the SerDes 131. The first hybrid connector 130 also has data lines 135 that are galvanically connected to the data lines 125 so that data may be transmitted and received between the first hybrid connector 130 and the first device 110 using a wired connection. Further, the TRx 132 is connected to antenna 133 which allows for a wireless connection to the first device 120 via the TRx 122 and antenna 123 of the first device. The SerDes 131 of the first hybrid connector is connected to the wires 164 and transmits and receives data from the wires 164. Further, the SerDes 131 is connected the TXr 132 and the wire lines 135 so that data for transmission and reception is split between the SerDes 131 and the TXr 132. The second hybrid connector 140 and is similar elements 141-146 operate in the same manner.
The system in
State of the art short range millimeter wave links demonstrate link speeds of 13 Gbps up to 20 Gbps. Because of the high SNR that is achievable with the hybrid connector due to the short propagation distances and sufficient transmit power, such link speeds will be possible in this application. To reach data rates beyond 50 Gbps multiple millimeter wave channels will be required in a single connector. This may be achieved by integrating multiple transmitters and receivers inside a single connector as well as in the complementary receptacle.
Several antenna configurations are possible.
In
In
Receptacles on devices connected to the data cable may have antenna layouts that are complementary to those shown for the hybrid connectors 800 and 900. Further, in alternative embodiments of receptacles corresponding to hybrid connectors 800 and 900, only half of the antennas may be present, for example, only those corresponding to 821, 823, 825, and 827 for hybrid connector 800, and 921, 923, 925, and 927 for hybrid connector 900. Such an arrangement still allows for the hybrid connectors to be flippable while reducing the number of antennas need in the receptacle.
In alternative embodiments of hybrid connectors 800 and 900, only half of the antennas may be present, for example 821, 823, 825, and 827 for hybrid connector 800, and 921, 923, 925, and 927 for hybrid connector 900. The receptacle, in this case may then have the full eight antennas in complementary configures to those shown for hybrid connectors 800 and 900 in
In another embodiment, the hybrid connector may be made flippable by allowing the TRx's to be connected to multiple antenna's using switches. Then the TRx channels may be paired by sending/receiving interrogation signals upon connection. So for the examples using 8 antennas, 8 channels may be implemented where each TRx is connected to two different antennas and the TRX selects the proper antenna based upon sending/receiving interrogation signals.
In another embodiment, data may also be modulated onto the power signals in order to increase the bandwidth of the hybrid connection. Any of the TRx's may be used to add this modulation to the power lines.
The hybrid connector embodiments described herein will enable a connector supporting high data rates allowing for a connector with: a simple mechanical build-up of connector; a small number of pins that allow for small size and mating symmetry; that is robust and insensitive to dust and dirt; and compatibility to existing port and connector layouts.
Further while the example of UBB-C connectors and USB connectors in general are described in the embodiments above, other types of connectors may be used to implement the various embodiments of hybrid connectors described herein.
Although the various exemplary embodiments have been described in detail with particular reference to certain exemplary aspects thereof, it should be understood that the invention is capable of other embodiments and its details are capable of modifications in various obvious respects. As is readily apparent to those skilled in the art, variations and modifications can be affected while remaining within the spirit and scope of the invention. Accordingly, the foregoing disclosure, description, and figures are for illustrative purposes only and do not in any way limit the invention, which is defined only by the claims.
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