Patent ID: 7649430
Filing Date: 2010-01-19
Classification: H03K,H04L

Abstract:
1. A switching apparatus for connecting a transmission line designated from among a plurality of transmission lines, between an input terminal and an output terminal, the switching apparatus comprising: a plurality of input series switches provided in correspondence with the plurality of transmission lines, each input series switch switching a connection state between one end of a corresponding transmission line and the input terminal according to a control signal; a plurality of output series switches provided in correspondence with the plurality of transmission lines, each output series switch switching a connection state between the other end of the corresponding transmission line and the output terminal according to a control signal; a plurality of control wirings provided in correspondence with the plurality of transmission lines, each control wiring supplying a control signal to the input series switch and the output series switch that correspond to the transmission line; and a noise removal section that is provided between the input series switch and the output series switch on at least one of the control wirings and that reduces a noise propagated from the input series switch to the output series switch via the control wiring.