Apparatus, system, and method for integrated modular phased array tile configuration

• US 8,872,719 B2
• Filed: 11/09/2010
• Issued: 10/28/2014
• Est. Priority Date: 11/09/2009
• Status: Active Grant

• Current Assignee: Ovzon LLC
• Original Assignee: Linear Signal, Inc.
• Inventors: Warnick, Karl F.
• Primary Examiner(s): SMITH, GRAHAM P
• Application Number:
  US12/942,879
• Publication Number:
  US 20110109507A1
• Time in Patent Office: 1,449 Days
• Field of Search: 343/853
• US Class Current: 343/853
• CPC Class Codes: H01Q 21/0025 Modular arrays
• CPC Class Codes: H01Q 21/061 Two dimensional planar arrays

Abstract

An apparatus, system, and method are disclosed for phased array antenna communications. A phased array antenna tile includes a plurality of antenna elements. A beamformer module is integrated into the phased array antenna tile. The beamformer module is electrically coupled to each antenna element to process directional signals for the plurality of antenna elements. A plurality of cascadable connection points are disposed along a perimeter of the phased array antenna tile for connecting the phased array antenna tile to one or more additional phased array antenna tiles.

Claims

1. An apparatus for phased array antenna communications, the apparatus comprising:

a phased array antenna tile comprising a plurality of antenna elements, each phased array antenna tile having a plurality of edges;

a beamformer module integrated into the phased array antenna tile, and comprising a plurality of phase shifters and one or more of a combiner and a splitter, the beamformer module electrically coupled to each antenna element to process directional signals for the plurality of antenna elements in the analog domain, wherein each phase shifter is configured to adjust a phase of a signal of and antenna element and wherein the combiner is configured to combine a signal from each of the plurality of antenna elements of the phased array antenna tile configured to receive a signal and wherein the splitter is configured to split a signal to provide a signal to each of the plurality of antenna elements of the phased array antenna tile configured to send a signal; and

a plurality of cascadable connection points disposed along a perimeter of the phased array antenna tile for connecting the phased array antenna tile to one or more additional phased array antenna tiles, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tiles and maintain relative positioning between antenna elements on adjacent phased array antenna tiles, wherein the cascadable connection points comprise attachment fixtures that mechanically connect the phased array antenna tile to the one or more additional phased array antenna tiles along an edge of the phased array antenna tile, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tile independent of additional structure, wherein the cascadable connection points comprise a high-frequency connector along each edge of the phased array antenna tile that provides radio-frequency (“

RF”

) inputs, RF outputs, and signal grounds, and a low-frequency connector along each edge of the phased array antenna tile that provides direct current (“

DC”

) power supply connections, digital control lines, and power grounds.

2. The apparatus of claim 1, further comprising one or more low noise amplifiers integrated into the phased array antenna tile, wherein the phased array antenna tile comprises a receiver and the beamformer module is configured to receive the directional signals from a low noise amplifier of each of the plurality of antenna elements.

3. The apparatus of claim 2, wherein the one or more low noise amplifiers are one of disposed between the plurality of antenna elements and the beamformer module and integrated with the beamformer module.

4. The apparatus of claim 2, further comprising one or more control lines configured to adjust one or more of phase and gain of a signal of each antenna element of the plurality of antenna elements on the phased array antenna tile, the control lines adjusting phase of each phase shifter and gain of the low noise amplifier of an antenna element.

5. The apparatus of claim 1, further comprising one or more power amplifiers integrated into the phased array antenna tile, wherein the phased array antenna tile comprises a transmitter and the beamformer module is configured to provide the directional signals to the plurality of antenna elements through a power amplifier.

6. The apparatus of claim 5, wherein the one or more power amplifiers are one of disposed between the plurality of antenna elements and the beamformer module and integrated with the beamformer module.

7. The apparatus of claim 5, wherein the one or more power amplifiers are integrated with the beamformer module further comprising one or more control lines configured to adjust one or more of phase and gain of a signal of each antenna element of the plurality of antenna elements on the phased array antenna tile the control lines adjusting phase of each phase shifter and gain of the power amplifier of an antenna element.

8. The apparatus of claim 1 wherein the beamformer module comprises an integrated chip.

9. A system for phased array antenna communications, the system comprising:

a plurality of phased array antenna tiles juxtaposed in a regular pattern, each phased array antenna tile comprising a plurality of antenna elements, each phased array antenna tile having a plurality of edge;

a beamformer module integrated into each phased array antenna tile, and comprising a plurality of phase shifters and a combiner, each beamformer module electrically coupled to each antenna element of a corresponding phased array antenna tile to process directional signals for the plurality of antenna elements in the analog domain, wherein each phase shifter is configured to adjust a phase of a signal of an antenna element and wherein the combiner is configured to combine a signal from each of the plurality of antenna elements of the phased array antenna tile configured to receive a signal and wherein the splitter is configured to split a signal to provide a signal to each of the plurality of antenna elements of the phased array antenna tile configured to send a signal;

a plurality of cascadable connection points disposed along a perimeter of each phased array antenna tile, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tiles and maintain relative positioning between antenna elements on adjacent phased array antenna tiles, wherein a subset of connection points on one phased array antenna tile mate with a corresponding subset of connection points on one or more juxtaposing phased array antenna tiles, wherein the cascadable connection points comprise attachment fixtures that mechanically connect the phased array antenna tile to the one or more additional phased array antenna tiles along an edge of the phased array antenna tile, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tiles independent of additional structure, wherein the cascadable connection points comprise a high-frequency connector along each edge of the phased array antenna tile that provides radio-frequency (“

RF”

) inputs, RF outputs, and signals grounds, and a low-frequency connector along each edge of the phased array antenna tile that provides direct current (“

DC”

) power supply connections, digital control lines, and power grounds; and

an interface module that connects to a subset of connection points not mated between juxtaposing phased array antenna tiles.

10. The system of claim 9, wherein the plurality of phased array antenna tiles comprises one or more of a receiver and a transmitter.

11. The system of claim 9, further comprising a beamformer control module configured to perform additional beamforming on phased array antenna tile outputs using digital signal processing and further comprising control lines from the beamformer control module to each phased array antenna tile, the beamformer control module configured to generate digital amplitude and phase control signals that are distributed to the phased array antenna tiles via the control lines.

12. The system of claim 9, further comprising one or more low noise amplifiers integrated into each phased array antenna tile, wherein the plurality of phased array antenna tiles comprises a receiver and the beamformer modules are configured to receive the directional signals from a low noise amplifier of each of the plurality of antenna elements.

13. The system of claim 9, further comprising one or more power amplifiers integrated into each phased array antenna tile, wherein the plurality of phased array antenna tiles comprises a transmitter and the beamformer modules are configured to provide the directional signals to each of the plurality of antenna elements through a power amplifier.

14. An apparatus for transmitting and receiving phased array antenna communications, the apparatus comprising:

a phased array antenna tile comprising a plurality of antenna elements, each phased array antenna tile having a plurality of edges;

a beamformer integrated into the phased array antenna tile, and comprising a plurality of phase shifters, a combiner and a splitter, the beamformer module electrically coupled to each antenna element to process directional signals for the plurality of antenna elements, in the analog domain wherein each phase shifter is configured to adjust a phase of a signal of an antenna element and wherein the combiner is configured to combine a signal from each of the plurality of antenna elements of the phased array antenna tile configured to receive a signal and wherein the splitter is configured to split a signal to provide a signal to each of the plurality of antenna elements of the phased array antenna tile configured to send a signal, wherein the beamformer module sends directional transmit signals to the plurality of antenna elements and receives directional receive signals from the plurality of antenna elements; and

a plurality of cascadable connection points disposed along a perimeter of the phased array antenna tile for connecting the phased array antenna tile to one or more additional phased array antenna tiles, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tiles and maintain relative positioning between antenna elements on adjacent phased array antenna tiles, wherein the cascadable connection points comprise attachment fixtures that mechanically connect the phased array antenna tile to the one or more additional phased array antenna tiles along an edge of the phased array antenna tile, wherein the cascadable connection points provide structural support between the phased array antenna tile and the connected one or more additional phased array antenna tiles independent of additional structure, wherein the cascadable connection points comprise a high-frequency connector along each edge of the phased array antenna tile that provides radio-frequency (“

RF”

) inputs, RF outputs, and signal grounds, and a low-frequency connector along each edge of the phased array antenna tile that provides direct current (“

DC”

) power supply connections, digital control lines, and power grounds.

15. The apparatus of claim 14, further comprising one or more duplexer circuits electrically coupled to the plurality of antenna elements, the one or more duplexer circuits allowing each antenna element to both transmit and receive.

16. The apparatus of claim 14, wherein the plurality of antenna elements comprise one or more transmit antenna elements interleaved among one or more receive antenna elements.