Patent ID: 7130655
Filing Date: 2006-10-31
Classification: H01P,H04B

Abstract:
1. A high-frequency switch circuit for switching a connection between a common transmission circuit and an antenna side circuit in a plurality of transmitting and receiving systems, a connection between said antenna side circuit and a reception circuit in one of said plurality of transmitting and receiving systems, and a connection between said antenna side circuit and a reception circuit in the other of said plurality of transmitting and receiving systems, said high-frequency switch circuit comprising: a first diode connected between said common transmission circuit and said antenna side circuit; a second diode connected between said antenna side circuit and said reception circuit in said one of said plurality of transmitting and receiving systems; and a distributed constant line connected between said antenna side circuit and said reception circuit in the other of said plurality of transmitting and receiving systems, wherein a third diode is connected to said first and second diodes through said distributed constant line wherein said distributed constant line is connected to the cathode side of said first and second diodes, and connected to the anode side of said third diode.