Patent ID: 8830881

Claim:
A circuit for a wideband electrical balance duplexer (EBD), the circuit comprising: a first impedance element coupled between a first and a second node of a bridge circuit; a second impedance element coupled between the second and a third node of the bridge circuit; an antenna configured to receive and transmit RF signals, the antenna being coupled between the first and a fourth node of the bridge circuit; and a balancing network configured to provide an impedance that substantially matches an impedance of the antenna, the balancing network being coupled between the third and the fourth node of the bridge circuit, wherein a) at least one of the first or the second impedance elements are configured to facilitate balancing the bridge circuit, b) one or more output nodes of a transmit (TX) path are coupled to an input node of the bridge circuit, and c) one or more input nodes of a receive (RX) path are coupled between the second and the fourth node of the bridge circuit.