| 摘要 |
PROBLEM TO BE SOLVED: To provide a high frequency switch circuit than can stably output a received signal at a 1st or 2nd reception terminal that is selected and can be in operation with a small current. SOLUTION: In the high frequency switch circuit having a 1st reception line is used to output a received signal with a 1st frequency band f1 received by an antenna to a 1st reception circuit and a 2nd reception line that is used to output a received signal with a 2nd frequency band f2 received by the antenna to a 2nd reception circuit, parallel resonance circuits R1, R2 consisting of parallel connection of a switching transistor(Tr)1 and an inductive element L1 and of a switching Tr2 and an inductive element L2 and using a prescribed frequency of other frequency bands for an anti-resonance frequency, and strip lines SL1, SL2 acting like short stabs at a prescribed frequency of the one frequency band are placed to one of the reception lines.
|
