Reflection-type banpass filter

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

Reexamination Certificate

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Reexamination Certificate

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07839240

ABSTRACT:
Provided is a reflection-type bandpass filter for ultra-wideband wireless data communication. The filter includes a substrate including a dielectric layer and a conducting layer layered on the top and bottom surfaces thereof, and a center conductor provided within the dielectric layer and serving as a strip line. A width distribution of the center conductor is non-uniform in a length direction of the center conductor.

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