| 摘要 |
PROBLEM TO BE SOLVED: To provide a high frequency switch module with a high shield effect of a transmission line and capable of decreasing transmission loss. SOLUTION: A high frequency signal processing circuit 2 is configured as a layered body 80 wherein a plurality of conductor layers including circuit conductor elements 111, 45, VA, 101 and 102 and a plurality of dielectric layers 50 are layered. The plurality of conductor layers include: the transmission line 111 and a ground planar conductor 101 as the circuit conductor elements; and an electrically neutral isolated conductor layer 130 isolated from the circuit conductor elements in terms of a DC. Then the transmission line 111 forms an isolated conductor layer accompanying a microstrip line which is sandwiched between a ground planar conductor 102 and the isolated conductor layer 130 in the thickness direction of the layered body 80. COPYRIGHT: (C)2004,JPO&NCIPI
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