US 11,901,632 B2
Phased array antenna device and program
Tomohiro Takahashi, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/605,231
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Mar. 26, 2020, PCT No. PCT/JP2020/013723
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2020/255522, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 2019-114250 (JP), filed on Jun. 20, 2019.
Prior Publication US 2022/0200161 A1, Jun. 23, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 3/36 (2006.01); H01Q 21/24 (2006.01); H01Q 3/26 (2006.01); G01S 3/42 (2006.01)
CPC H01Q 21/06 (2013.01) [G01S 3/42 (2013.01); H01Q 3/2605 (2013.01); H01Q 3/36 (2013.01); H01Q 21/24 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A phased array antenna device for receiving a signal from a satellite, the phased array antenna device comprising:
a plurality of subarrays, each of the plurality of subarrays including a plurality of antenna elements and a plurality of phase shifters, each of the plurality of phase shifters being connected to a corresponding antenna element included in the plurality of antenna elements and being configured to shift phase of signal received by the corresponding antenna element with set phase shift value;
a demodulator to demodulate the signals from the satellite with the phases shifted by the plurality of phase shifters and to output the demodulated signals; and
a controller to set the phase shift values of the plurality of phase shifters and to control a beam direction, wherein
the controller, for each of the plurality of subarrays, (i) calculates a direction-correction phase shift value that maximizes a power value of the signal from the satellite by being added to the phase shift values of the plurality of phase shifters, and (ii) adds the direction-correction phase shift value to the phase shift values of the plurality of phase shifters.