Large scale integration and control of antennas with master chip and front end chips on a single antenna panel
View Patent ↗A wireless receiver includes an antenna panel divided into a plurality of segments, each segment having a group of antennas, each segment having a set of radio frequency (RF) front end chips. Each RF front end chip is coupled to some antennas in the group of antennas. A master chip is configured to drive in parallel a plurality of control buses. Each control bus is coupled to a respective one of the plurality of segments, where each RF front end chip in the set of RF front end chips is serially coupled to another RF front end chip in the set of RF front end chips. Each control bus carries phase shift signals and amplitude control signals from the master chip to a respective set of RF front end chips in each segment. The master chip and the plurality of segments in the antenna panel are integrated on a single printed circuit board.
1. A wireless receiver comprising:
an antenna panel being divided into a plurality of segments;
each said plurality of segments having a group of antennas;
each said plurality of segments having a set of radio frequency (RF) front end chips;
each RF front end chip in said set of RF front end chips being coupled to some of said group of antennas;
a master chip driving in parallel a plurality of control buses, each said control bus coupled to a respective one of said plurality of segments;
each RF front end chip in said set of RF front end chips being serially coupled to one-another by a respective one of said plurality of control buses in said respective one of said plurality of segments.
2. The wireless receiver of claim 1 wherein each said control bus provides at least one phase shift signal to at least one of said RF front end chips in said set of RF front end chips.
3. The wireless receiver of claim 1 wherein each said control bus provides at least one amplitude control signal to at least one of said RF front end chips in said set of RF front end chips.
4. The wireless receiver of claim 1 wherein each said control bus provides phase shift signals and amplitude control signals to each said RF front end chip in said set of RF front end chips.
5. The wireless receiver of claim 1 wherein at least one antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to at least one of said RF front end chips in said set of RF front end chips.
6. The wireless receiver of claim 1 wherein each antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to a corresponding one of said RF front end chips in said set of RF front end chips.
7. The wireless receiver of claim 1 wherein at least one antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to respective phase shifters in at least one of said RF front end chips in said set of RF front end chips.
8. The wireless receiver of claim 1 wherein each antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to respective phase shifters in a corresponding one of said RF front end chips in said set of RF front end chips.
9. The wireless receiver of claim 1 wherein each said control bus carries phase shift signals and amplitude control signals from said master chip to a respective set of RF front end chips in each said plurality of segments.
10. The wireless receiver of claim 1 wherein each said control bus carries at least one phase shift signal causing a phase shift in at least one linearly polarized signal received from at least one antenna of said group of antennas, and at least one amplitude control signal causing an amplitude change in said at least one linearly polarized signal.
11. The wireless receiver of claim 1 wherein said master chip and said plurality of segments in said antenna panel are integrated on a single printed circuit board.
12. The wireless receiver of claim 1 wherein said master chip, each said group of antennas, and each said set of RF front end chips are integrated on a single printed circuit board.
13. A wireless receiver comprising:
an antenna panel being divided into a plurality of segments;
each said plurality of segments having a group of antennas;
each said plurality of segments having a set of radio frequency (RF) front end chips;
each RF front end chip in said set of RF front end chips being coupled to some of said group of antennas;
a master chip driving in parallel a plurality of control buses, each said control bus coupled to a respective one of said plurality of segments;
each RF front end chip in said set of RF front end chips being serially coupled to one-another by a respective one of said plurality of control buses in said respective one of said plurality of segments;
each said control bus providing phase shift signals to respective phase shifters and amplitude control signals to respective variable gain amplifiers in each RF front end chip in said set of RF front end chips;
each said respective phase shifters receiving a linearly polarized signal from a respective antenna in said group of antennas.
14. The wireless receiver of claim 13 wherein said respective antenna provides a horizontally-polarized signal to a corresponding one of said respective phase shifters.
15. The wireless receiver of claim 13 wherein said respective antenna provides a vertically-polarized signal to a corresponding one of said respective phase shifters.
16. The wireless receiver of claim 13 wherein at least four antennas in said group of antennas are coupled to each RF front end chip in said set of RF front end chips.
17. The wireless receiver of claim 13 wherein at least one antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to one of said RF front end chips in said set of RF front end chips.
18. The wireless receiver of claim 13 wherein each antenna of said group of antennas provides a horizontally-polarized signal and a vertically-polarized signal to one of said RF front end chips in said set of RF front end chips.
19. The wireless receiver of claim 13 wherein at least one of said phase shift signals causes a phase shift in said linearly polarized signal received from said respective antenna in said group of antennas.
20. The wireless receiver of claim 13 wherein at least one of said amplitude control signals causes an amplitude change in said linearly polarized signal received from said respective antenna in said group of antennas.
21. The wireless receiver of claim 13 wherein said master chip, each said group of antennas, and each said set of RF front end chips are integrated on a single printed circuit board.
22. The wireless receiver of claim 13 wherein said master chip is configured to provide said phase shift signals and said amplitude control signals using at least one of Serial Peripheral Interface (SPI), Joint Test Action Group (JTAG), and Inter-integrated Circuit (I 2 C) digital chip-to-chip communication protocols.