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Resonator structure having a strip and groove serving as transmission line resonators

  • US 5,408,206 A
  • Filed: 05/06/1993
  • Issued: 04/18/1995
  • Est. Priority Date: 05/08/1992
  • Status: Expired due to Fees
First Claim
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1. A high-frequency filter, comprising a first and a second piece of dielectric material, said pieces being at least in part encapsulated by an electrically conductive layer serving as a ground plane, the first piece having an upper surface with a groove extending across the entire surface, said groove having an electrically conductive material coating that is confined to said groove and is connected, at least at one end, with the electrically conductive layer, whereby the coating forms a transmission line resonator, the upper surface of the second piece having a planar conductive strip extending in a middle of the surface, said strip forming a transmission line resonator, the pieces being positioned with their upper surfaces facing each other and so attached to each other that the groove and the strip are positioned in parallel and facing one another.

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