| 摘要 |
PROBLEM TO BE SOLVED: To provide a layered LC composite component that can enhance the attenuation in the vicinity of its center frequency without increasing the insertion loss. SOLUTION: One end of each of inductor patterns 27, 28 is connected to a connection pattern 31 and used for a short-circuit end. The inductor patterns 27, 28 respectively form inductors L1, L2. A frequency adjustment capacitor pattern 29 is opposed to an open end of the inductor pattern 27 to form a capacitor C1. Then the capacitor C1 and the inductor L1 configure an LC resonator Q1. A frequency adjustment capacitor pattern 30 is opposed to an open end of the inductor pattern 28 to form a capacitor C2. Then the capacitor C2 and the inductor L2 configure an LC resonator Q2. The connection pattern 31 is opposed to shield patterns 32, 33 while being inserted between insulator sheets 23, 24 to form a common capacitor Cd.
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