| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated dielectric filter easily adjusting the width of a pass band. SOLUTION: The laminated dielectric filter has first and second plate electrodes arranged on a first plane, a first strip-line resonator arranged mutually in approximately parallel with the second plane and capacity-coupled with the first plate electrode and a second strip-line resonator capacity-coupled with both the first and second plate electrodes. The laminated dielectric filter further has a third strip-line resonator capacity-coupled with the second plate electrode, and a third plate electrode arranged on the third plane and capacity-coupled with the first, second and third strip-line resonators. The laminated dielectric filter further has a fourth plate electrode being disposed while being opposed to the third plate electrode on a fourth plane and having a width exceeding the 0.7 times of the width of the existing regions of the first, second and third strip-line resonators. COPYRIGHT: (C)2006,JPO&NCIPI
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