Patent ID: 7831214

Claim:
A low power linear transmit/receive (T/R) module, comprising: a unidirectional low noise amplifier (LNA) having an input terminal for receiving a signal and an output terminal for providing an amplified version of said input signal; a switching arrangement comprising first, second, third and fourth switches coupled to said LNA and operative in a first receive mode to connect said input terminal of said LNA to an antenna transmit/receive terminal and to connect said output terminal of said LNA to a processing circuit, said switching arrangement operative in a second transmit mode to connect said input terminal of said LNA to said processing circuit and to connect said output terminal of said LNA to said antenna transmit/receive terminal, wherein said first switch comprising a common terminal connected to said antenna transmit/receive terminal, said second switch comprising a common terminal connected to the output terminal of said LNA, said third switch comprising a common terminal connected to said input terminal of said LNA, and said fourth switch comprising a common terminal connected to said processing circuit, wherein said processing circuit includes a reciprocal phase shifter and attenuator.