Patent ID: 6995630

Claim:
A high-frequency compound switch module adaptable for at least two different communication systems, including a first communication system and a second communication system, said first communication system comprising: a switch unit for switching connection of a signal from an antenna to any of a transmission circuit and a reception circuit of said first communication system based on a signal from a control terminal; a filter provided on the reception circuit side, for filtering out a first reception signal; and a first phase shift line provided between said filter and said switch unit, and said second communication system comprising: a second phase shift line provided between said switch unit and said first phase shift line; and a branching filter provided in series to said second phase shift line for branching a signal from said second phase shift line into a second transmission signal and a second reception signal, wherein said switch module is capable of performing at least a receiving process of said first communication system while performing transmission/reception with said second communication system.