| 摘要 |
PURPOSE:To constitute an LC resonator without forming a through hole, by connecting capacitor electrodes on one sides not being confronted with each other in two pairs of capacitor electrodes to a common potential terminal, and setting the capacitor electrodes on the other sides as electrodes for input- ting/outputting a signal. CONSTITUTION:A dielectric substrate 1 is constituted of a ceramic with a high permittivity, and the electrodes 2 and 3 are formed on the surfaces of the electrodes. The electrode 2 is constituted of the capacitor electrodes C1a-C3a, and the electrode 3 is constituted of the capacitor electrode C4a. Meanwhile, the electrodes 4 and 5 are formed on the rear plane of the substrate 1. The electrode 4 is constituted of the capacitor electrode C1b, and the electrode 5 is constituted of the capacitor electrodes C2b-C4b. And, inductor electrodes L1 and L2 connect between the electrodes C2a and C3a, and between the electrodes C2b and C3b, respectively. Also, inputting/outputting leads 6 and 9 are connected to the electrodes 4 and 3, respectively, and ground leads 7 and 8 are connected to the electrodes 5 and 2, respectively.
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