公开(公告)号：US10181839B2

公开(公告)日：2019-01-15

申请号：US15493205

申请日：2017-04-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takayuki Tomita ,  Daisuke Watanabe

IPC: H01P1/10 ,  H03H7/40 ,  H03H9/72 ,  H03H9/64 ,  H03H9/00

Abstract: A switch module includes a first terminal, first and second filters, and first and second switches. Impedance of the first filter for a signal in a stop band is capacitive. When the first switch is turned OFF, impedance of the first switch is capacitive, and impedance of the first filter seen from an end portion of the first switch connected to the first filter is not in a short state and impedance of the first filter seen from the first terminal is in an open state.