Reflection-type bandpass 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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07852173

ABSTRACT:
This invention provides a reflection-type bandpass filter for ultra-wideband wireless data communication, in which are provided, on the surface of a dielectric substrate, a center conductor and side conductors, provided on both sides of the center conductor, securing a prescribed distance between conductors with non-conducting portions intervening therebetween. The center conductor width or the distances between conductors, or both, are distributed non-uniformly in a length direction of the center conductor.

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