| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna switch module which improves an attenuation amount of a double frequency wave or 3 times frequency wave of a low pass filter. SOLUTION: The antenna switch module is provided with a plurality of transmission circuits corresponding to a plurality of transmission/reception system of different frequencies, a plurality of receiving circuits corresponding to the transmission/reception system, and a branching filter; and at least part of them is formed by electrode patterns in a multilayer dielectric. In the antenna switch module, a transmission line connecting the electrode pattern corresponding to a transmission signal input terminal formed in the multilayer dielectric, and a transmission terminal electrode formed on a surface of the multilayer dielectric, are made by a through hole electrode, therefore, at least one of the plurality of transmission circuits is arranged near the transmission terminal electrode. COPYRIGHT: (C)2007,JPO&INPIT
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