Patent ID: 9634389
Date: 2017-04-25
CPC Classifications: H01Q

Claim:
1. A multipath switching system comprising of an adjustable phase shift array, comprising: an adjustable phase shift array module, for receiving a radio-frequency (RF) signal, comprising at least one RF switch, at least one coupler and at least two phase shifters; the at least one RF switch, the at least one coupler and the at least two phase shifters forming at least two transmission paths, the transmission paths respectively receiving the RF signal, and respectively outputting a plurality of processed RF signals corresponding to different phase shifts to an antenna array; and a control module, for controlling the at least one RF switch and the at least two phase shifters of the adjustable phase shift array module, so that the antenna array radiates a wireless signal whose direction is corresponding to a predetermined angle in space polar coordinates, wherein as for a plurality of antennas of the antenna array, a phase shift between every two adjacent antennas is selected among a plurality of candidate phase differences selected by the control module; and the adjustable phase shift array module comprises three RF switches, three couplers and six phase shifters; the three RF switches comprise first to third RF switches, the three couplers comprise first to third couplers, and the six phase shifters comprise first to sixth phase shifters; the antenna array comprises four antennas; inputs of the first coupler are connected in series to the first RF switch, the first phase shifter and the second phase shifter are respectively connected to two outputs of the first coupler, the second RF switch is connected to the first phase shifter and inputs of the second coupler, the third RF switch is connected to the second phase shifter and inputs of the third coupler, the third phase shifter and the fourth phase shifter are respectively connected to two outputs of the second coupler, and the fifth phase shifter and the sixth phase shifter are respectively connected to two outputs of the third coupler.