HIGH EFFICIENCY INTERDIGITAL FILTERS
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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Abstract
A printed circuit for processing radio frequency signals includes a substrate including substrate regions upon which the printed circuit can be placed. The circuit is an interdigital filter including a plurality of resonator elements. The plurality of resonator line elements are at least partially coupled to respective substrate regions that have substrate characteristics that are each independently customizable. The circuit further comprises at least one ground or ground plane (50) coupled to the substrate.
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Citations
21 Claims
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1. A circuit for processing radio frequency signals, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A printed circuit for processing radio frequency signals, comprising:
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a substrate upon which said circuit can be placed, said substrate including at least one dielectric layer, said dielectric layer having a first set of dielectric and magnetic properties over a first region, and at least a second set of dielectric and magnetic properties over a second region, said second set of dielectric and magnetic properties providing a different dielectric permittivity and magnetic permeability as compared to said first set of dielectric and magnetic properties;
at least one ground disposed in or on 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. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A printed circuit for processing radio frequency signals, comprising:
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a substrate including substrate regions upon which said circuit can be placed, wherein said circuit is an interdigital filter, said interdigital filter including a plurality of resonator line elements; and
at least one ground coupled to said substrate, wherein the plurality of resonator line elements are at least partially coupled to respective substrate regions that have substrate characteristics that are each independently customizable. - View Dependent Claims (21)
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Specification