Telecommunications device comprising an EBD circuit, a tunable impedance network and a method for tuning a tunable impedance network Vrije Universiteit Brussel
Benjamin Hershberg, Barend van Liempd, Jan Craninckx
A system having a tunable impedance network and a method of tuning a tunable impedance network are disclosed. In one aspect, a telecommunications device comprises an electrical-balance duplexer (EBD) circuit coupled to at least one output node of a transmit path (TXin), an antenna, and at least one input node of a receive path (RXout), wherein the EBD circuit is configured to isolate the transmit path from the receive path by signal cancellation, and a balancing network (Zbal) as part of the EBD circuit. In one embodiment, the balancing network is an integrated tunable impedance network ...