| 摘要 |
PROBLEM TO BE SOLVED: To provide a micro strip line filter where the need for re-production of the micro strip line filter is eliminated even when a frequency band as designed cannot be obtained from the filter. SOLUTION: The filer includes two micro strip lines resonators spaced with each other on a dielectric board 4 and 1st and 2nd micro strip line arrays 10, 12 that are placed in a direction in crossing with the extended direction of the micro strip line resonators 6 and interconnect bases 8 of the micro strip line resonators 6. The 1st and 2nd micro strip line arrays 10, 12 are placed opposite to each other by taking the bases 8 of the micro strip line resonators 6 to the outside and the tips of the micro strip line resonators 6 to the inside, and the tips of the micro strip line resonators 6 are placed interdigitally. Then conductive sheets 14 of the 1st and 2nd micro strip line arrays 10, 12 are adhered closely on the bases 8 of the micro strip line resonators 6. The pass band of the filter can be adjusted by adjusting the position of the conductive sheets 14.
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