| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized antenna switch module including a low pass filter capable of obtaining a wideband in a harmonic area by suppressing transmission loss. SOLUTION: In a laminated body configured by laminating a plurality of dielectric layers, an antenna switch circuit using a PIN diode is constructed on the top face of the dielectric, and a power feeding circuit for operating a notch type low pass filter and the antenna switch is constructed on a pattern layer 1. This antenna switch module is provided with line length of a stripline 13d in order to prevent an impedance obtained by viewing an input electrode 6a side from a circular conductor pattern 7 and an impedance obtained by viewing the antenna switch circuit 2 from the circular conductor pattern 7 from being a complex conjugate. COPYRIGHT: (C)2006,JPO&NCIPI
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