Multiband high-frequency switching module

摘要

A multiband high-frequency switching module in the form of a laminate body for use in a communication system utilizing a plurality of transmit-receive systems having different passbands. The multiband high-frequency switching module basically comprises a band-separating circuit and a plurality of switching circuits for the transmit-receive systems. The switching circuits are connected to a common antenna through the band-separating circuit, and alternately connect the common antenna to transmitting circuits or receiving circuits of the transmit-receive systems. The laminate body of the multiband high-frequency switching module comprises a plurality of dielectric layers, pattern electrodes printed on the dielectric layers, terminal electrodes formed on surfaces of the laminate body, and chip elements mounted on a top surface of said laminate body, and the pattern electrodes of at least the transmission lines connected to the receiving circuit for the plurality of switching circuits are formed on the same surface of at least one of the layers separately in the horizontal direction of the laminate body.