Patent ID: 6591086
Filing Date: 2003-07-08
Classification: H04B

Abstract:
A transceiver apparatus for transmitting and receiving radio signals in a time division duplex (TDD) system, the apparatus comprising:a transmitter section comprising at least a transmitter amplifier coupled to accept an intermediate frequency (IF) transmitter input signal and provide a radio frequency (RF) transmitter output signal; a receiver section comprising at least a receiver amplifier coupled to receive an RF receiver input signal and to provide an IF receiver output signal; an RF circulator, having a first port connected to receive the transmitter output signal, a second port connected to provide the RF receiver input signal, and a third port for coupling to an antenna; a detector, connected to the receiver section to detect when a power level associated with the RF receiver input signal exceeds a predetermined power level; and a blanking circuit for disabling the receiver amplifier when the detector determines that the RF receiver input signal exceeds a predetermined power level.