an applied component of the ladder-type filter of SAW or BAW
a pair of filters and a RF combiner
If two frequencies are used, a duplexer will isolate a receiver from its companion transmitter, permitting simultaneous transmission and reception while using the same antenna.
Simultaneous receive and transmit on one transmission line. The receiver filter passes the receive frequency while rejecting the transmitters frequency. The transmitter filter passes its frequency while attenuating the receive frequency.
A circuit or component that allows a communications system to simultaneously transmit and receive signals through a common component, such as an antenna. Such systems typically use different frequencies for the transmit and receive signals, so the duplexer is often a pair of filters, each tuned to pass the desired signal frequency and reject the other signal frequency.
highly selective filter which allows a repeater's transmitter and receiver to share one antenna
A device that permits the use of one antenna for both transmitting and receiving with minimal degradation to either the incoming or uotgoing signals.
radar device that allows a single antenna to serve as both the transmitter and the receiver. Modern radars use a duplexer consisting of a ferrite circulator and a passive, radioactive gas- primed TR tube to protect the receiver.
A cellular device that permits simultaneous reception and transmission of a call.
A passive RF device which contains two bandpass filters with different passbands. It is also called a diplexer.