Patent ID: 7706307
Filing Date: 2010-04-27
Classification: G01S,H04B

Abstract:
1. A combination duplexer, comprising: an antenna port configured to 1) receive an auxiliary band signal, 2) receive a receive signal in a communication band, and 3) send a transmit signal in the communication band; an auxiliary port constructed to provide a signal indicative of the auxiliary band signal; a receive port constructed to provide a signal indicative of the receive signal; a transmit port constructed to receive a signal indicative of the transmit signal; an auxiliary filter between the antenna port and the auxiliary port; a receive filter between the antenna port and the receive port; and a transmit filter between the antenna port and the transmit port, wherein the filters are constructed using a ceramic monoblock, wherein each filter comprises integral resonators, and the GPS filter resonators are between the receiver filter resonators and the transmit filter resonators.