| 摘要 |
PROBLEM TO BE SOLVED: To provide a high frequency filter of a lamination type having a plurality of resonators that can be downsized and the characteristic of which can easily be adjusted. SOLUTION: The high frequency filter 1 includes resonators 11, 12 provided in a lamination board. The resonators 11, 12 are inductively coupled to each other, and capacitively coupled to capacitors 25, 26 connected in parallel via capacitors 27, 28 connected in parallel with the capacitors 25, 26. Each of the capacitors 25, 27 comprises first and third electrodes and a dielectric layer. The first electrode is connected to the resonator 11 via a through-hole, the third electrode is connected to the resonator 12 and opposed to the first electrode. Each of the capacitors 26, 28 comprises second and fourth electrodes and a dielectric layer. The second electrode is connected to the resonator 12 via a through-hole, the fourth electrode is connected to the resonator 11 and opposed to the second electrode. COPYRIGHT: (C)2007,JPO&INPIT
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