signature=5766ed215c89d8b885ad4ae9dd4aa3ef,Antenna Duplexer with High GPS Suppression

摘要：

An antenna duplexer includes a transmission filter which operates in a transmission frequency band and has a transmission filter output. A reception filter operates in a reception frequency band and has a reception filter output. An antenna connection is connected to the transmission filter output and a matching element is connected between the antenna connection and the reception filter input. The circuit formed from the transmission filter, reception filter and matching element attenuates transmission signals in a frequency band whose frequencies f are in the interval 0.50*f 0 <=f<=0.75*f 0 , where f 0 is the mid-frequency of the reception frequency band.

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