Patent ID: 9419833
Filing Date: 2016-08-16
CPC Classification: H01Q,H04L

Claim Text:
1. A phase control method, comprising: feeding, by a base station, a high frequency current into a power divider; sending, by a base station, a control signal to a switch controller, wherein the control signal comprises a drive voltage and a digital control flow; dividing, by the power divider, the high frequency current into at least two current branches; feeding the at least two current branches separately into corresponding radio frequency input ports on a digital phase shifter; determining, by the switch controller according to the digital control flow, radio frequency paths that are in the digital phase shifter and for the at least two current branches fed into the digital phase shifter; controlling, by the switch controller the drive voltage to act on the digital phase shifter; establishing, by the digital phase shifter, radio frequency paths for the at least two current branches separately for currents to flow through according to connection directions in which the drive voltage drives micro electro mechanical system (MEMS) switches in the digital phase shifter, and using the MEMS switches and microstrips that connect the MEMS switches; and controlling, by the digital phase shifter, duration of phase delays for the at least two current branches by controlling lengths of the radio frequency paths through which the at least two current branches flow.