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Title:
BEAM STEERABLE COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/171020
Kind Code:
A4
Abstract:
Disclosed is a beam steerable communication apparatus comprising a focusing element with a focal plane, a plurality of antenna elements disposed on the focal plane of the focusing element, a beamforming network which has a plurality of antenna ports and a plurality of beamforming ports, at least one radio frequency transceiver capable to control the phase of a carrier frequency signals on at least one independent output, and a baseband modem, wherein each antenna port of the beamforming network is coupled to at least one antenna element, each beamforming port of the beamforming network is coupled to an independent transceiver output, and the phase distribution law formed on the beamforming ports is determined by a baseband modem control commands to the transceivers, said phase distribution law is to combine or distribute signal power on all beamforming ports from or to at least one antenna port of the beamforming network. The technical result of the invention is in the capability of providing efficient beam steering with high gain antennas with all the prospect features of phased antenna arrays, such as the ability to combine/distribute signal power between several RF amplifiers, thus, facilitating linearity requirements and increasing an output power of a transmitter. The present invention can be used, without limitations, in radio relay point-to-point communication systems, e.g. for forming backhaul networks of cellular mobile communication, in car radars and other radars, in local and personal communication systems, in satellite and intersatellite communication systems, etc.

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Inventors:
ARTEMENKO ALEKSEY ANDREEVICH (RU)
MASLENNIKOV ROMAN OLEGOVICH (RU)
Application Number:
PCT/RU2015/000278
Publication Date:
January 28, 2016
Filing Date:
April 29, 2015
Export Citation:
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Assignee:
LTD LIABILITY COMPANY RADIO GIGABIT (RU)
International Classes:
H01Q3/24; H01Q3/40; H01Q25/00
Attorney, Agent or Firm:
NILOVA, Maria Innokentievna (Box 1125St.Petersburg, RU)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 14 December 2015 (14.12.2015)

1 . A beam steerable communication apparatus comprising a focusing element with a focal plane, a plurality of antenna elements disposed on the focal plane of the focusing element, a beamforming network which has a plurality of antenna ports and a plurality of beamforming ports, at least one radio frequency transceiver capable to control the phase of carrier frequency signals on its independent outputs, and a baseband modem, wherein each antenna port of the beamforming network is coupled to at least one antenna element, each beamforming port of the beamforming network is coupled to an independent transceiver output, and the phase distribution law formed on the beamforming ports is determined by a baseband modem control commands to the transceivers, said phase distribution law is to combine or distribute signal power on all beamforming ports from or to at least one antenna port of the beamforming network, wherein each radio frequency transceiver includes at least phase shifter, Tx/Rx switch, LNA, PA, up and down-conversion mixers, LO generation circuit, Rx power combining and Tx power distribution schemes.

2. The apparatus of claim 1 , wherein said beamforming network is a Butler matrix.

3. The apparatus of claim 2, wherein the Butler matrix includes 3 dB couplers, phase shifters, and crossovers.

4. The apparatus of claim 1 , wherein said beamforming network is realized on a semiconductor integrated circuit.

5. The apparatus of claim 1 , wherein said beamforming network is realized on a printed circuit board.

6. The apparatus of claim 1 , wherein radio frequency transceivers are realized as at least one semiconductor integrated circuit component.

7. The apparatus of claim 1 , wherein said focusing element is a parabolic reflector.

8. The apparatus of claim 1 , wherein said focusing element is a thin dielectric lens.

9. The apparatus of claim 1 , wherein said focusing element is a Luneburg lens.

10. The apparatus of claim 1 , wherein said focusing system is a lens with a plane surface substantially coincide with a focal surface, on which antenna elements are disposed in different off-axis displacement of the lens.

1 1 . The apparatus of claim 1 , wherein the beamforming network, transceivers, and antenna elements are realized in one printed circuit board assembly.

12. The apparatus of claim 1 1 , wherein said printed circuit board assembly is mounted on the plane surface of the lens.

13. The apparatus of claim 1 , wherein antenna elements are microstrip antenna elements implemented on a printed circuit board.

14. The apparatus of claim 1 , wherein antenna elements are horn antenna elements.

15. The apparatus of claim 1 , wherein antenna elements are arranged along one line in a focal plane of the focusing element.

16. The apparatus of claim 1 , wherein antenna elements are arranged in 2D order in a focal plane of the focusing element.

17. The apparatus of claim 1 , wherein phase shifting in each transceiver output is performed in RF region with signals on a carrier frequency.

18. The apparatus of claim 1 , wherein phase shifting in each transceiver output is performed in IF region with signals on IF or analog frequency.

19. The apparatus of claim 1 , wherein phase shifting in each transceiver output is performed with LO signals in LO generating circuit.

20. The apparatus of claim 1 , wherein phase shifting, power combining and power distribution are performed in digital domain.

21 . The apparatus according to any of claims 1 -19 adapted to operate in the frequency range of 71 -86 GHz and to provide a half power beamwidth lower than 1 ° for each beam during scanning.

22. The apparatus according to any of claims 1 -19 adapted to operate in the frequency range of 57-66 GHz and to provide a half power beamwidth lower than 3 ° for each beam during scanning.

23. The apparatus according to any of claims 1 -21 adapted to provide high throughput communication in millimeter wave point-to-point or point-to-multipoint radio

14 relay system and adapted to adjust the main antenna beam during initial antenna alignment procedure or in case of changes of antenna orientation.

15