Duplex wireless transceiver having a hybrid circuit and a reconfigurable radiation patterns antenna

摘要

hybrid transmitter - in receiver cancellation circuit, long method and circuit to solve the signal fading problem has been provided over the transceiver uses a dual antenna matching, thereby, full duplex that can actually be implemented a single channel or a duplexer without frequency division duplex, (FDD), it is possible to a wireless communication system. The method uses a novel circuit design, to maintain a substantially constant impedance in the hybrid antenna interface port, and while equalizing the propagation delays between the hybrid circuit and the both antennas, the at least one antenna by changing the radiation pattern parameters continuously, comprising controlling the dynamic changes in amplitude and phase of the signal at the receiver ports of the hybrid Tx-Rx circuit.