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HIGH EFFICIENCY INTERDIGITAL FILTERS

  • US 20040000972A1
  • Filed: 06/27/2002
  • Published: 01/01/2004
  • Est. Priority Date: 06/27/2002
  • Status: Active Grant
First Claim
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1. A circuit for processing radio frequency signals, comprising:

  • a substrate where said circuit can be placed, said substrate including at least one dielectric layer, said dielectric layer having a first set of substrate properties over a first region, and at least a second set of substrate properties over a second region, said second set of substrate properties being different than said first set of substrate properties;

    at least one ground plane coupled to said substrate; and

    , a interdigital filter having a plurality of resonator elements with at least a portion of alternating adjacent ends of said plurality of resonator elements coupled to the at least one ground plane and at least a portion of said interdigital filter coupled to said second region.

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