| 摘要 |
PROBLEM TO BE SOLVED: To provide an inter-stage dual tuning circuit that can easily be adjusted. SOLUTION: The inter-stage dual tuning circuit consists of an input terminal 11 that receives a high frequency signal, a variable capacitor 12 that is provided between this input terminal 11 and ground, a series connection body consisting of coils 17, 18 provided between the input terminal 11 and an output terminal 14, a variable capacitor 15 provided between the output terminal 14 and ground, and a fixed impedance 19 provided between a connecting point of the coils 17, 18 and ground and consisting of a pattern. Through the configuration above, the inter-stage dual tuning circuit can easily be adjusted.
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