Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2007-10-04
2010-12-21
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
Reexamination Certificate
active
07855622
ABSTRACT:
A reflection-type bandpass filter for ultra-wideband wireless data communication is provided. The filter comprises two conductors extending in a first direction on the surface of a dielectric substrate at a first distance from each other, the surface of the dielectric substrate between the conductors defining a non-conducting portion, wherein the width of the two conductors or the first distance, or both, varies in a length direction of the two conductors. Furthermore, a reflection-type bandpass filter comprising a dielectric substrate; a first conductor provided on the surface of the dielectric substrate; and a side conductor provided next to the first conductor at a first distance from the first conductor, with a non-conducting portion intervening a portion between the first and side conductors, wherein the first conductor width or the distance between the first and side conductors, or both, varies along the length direction of the first conductor, is provided.
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Fujikura Ltd.
Lee Benny
Stevens Gerald
Sughrue & Mion, PLLC
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