US 12,451,916 B2
Transmitting or receiving circularly polarized signals by linearly polarized antennas
Shao-Chou Hung, Hsinchu (TW); Bao-Chi Peng, Hsinchu (TW); Chun-Chia Chen, Hsinchu (TW); I-Kang Fu, Hsinchu (TW); Abdelkader Medles, Cambridge (GB); and Gilles Charbit, Cambridge (GB)
Assigned to MediaTek Inc., (TW)
Filed by MEDIATEK INC., Hsinchu (TW)
Filed on Apr. 12, 2023, as Appl. No. 18/299,512.
Claims priority of provisional application 63/330,339, filed on Apr. 13, 2022.
Claims priority of provisional application 63/330,340, filed on Apr. 13, 2022.
Claims priority of provisional application 63/330,341, filed on Apr. 13, 2022.
Prior Publication US 2023/0336201 A1, Oct. 19, 2023
Int. Cl. H04B 1/16 (2006.01); H01Q 3/24 (2006.01); H01Q 15/24 (2006.01)
CPC H04B 1/1638 (2013.01) [H01Q 3/24 (2013.01); H01Q 15/244 (2013.01); H01Q 15/246 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for receiving a circularly polarized signal by linearly polarized antennas, the method comprising:
receiving, by a horizontally polarized antenna and a vertically polarized antenna of an apparatus, a circularly polarized signal that is transmitted based on a transmitted baseband signal vector;
generating, by a radio frequency (RF) module of the apparatus, a first baseband signal vector based on the received circularly polarized signal, the first baseband signal vector including a product of the transmitted baseband signal vector and a receiving polarization vector of the transmitted baseband signal vector;
estimating, by processing circuitry of the apparatus, the receiving polarization vector of the transmitted baseband signal vector based on the first baseband signal vector; and
deriving, by the processing circuitry of the apparatus, a second baseband signal vector based on the estimated receiving polarization vector and the first baseband signal vector.