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US 2004/0000963 A1Published application
Broadband impedance transformers
AssigneeHarris Corporation
InventorsWilliam D. Killen, Randy T. Pike
Life of this patent
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Abstract
The invention concerns an impedance transforming device that includes a dielectric circuit board substrate. The substrate has at least one region that has a relative permeability or a relative permittivity different from a remaining portion of the substrate. In order to control the permeability and permittivity, in this way, meta-materials can be used to selectively modify portions of the substrate. A transmission line transformer is disposed on the substrate and coupled to the region.
Claims17
An impedance transforming device, comprising:
- a dielectric circuit board substrate having at least one region defining a portion of said substrate that has at least one of a relative permeability and a relative permittivity different from a remaining portion of said substrate;
- a transmission line transformer disposed on said substrate and coupled to said at least one region, said transmission line transformer configured for matching an input circuit of said transformer to an output circuit of said transformer.
An impedance transformer, comprising:
- a transmission line section disposed on a dielectric substrate board, said substrate board having a plurality of regions, each said region having a combination of relative permeability and relative permittivity different from at least one other region of said substrate;
- at least one transmission line transformer disposed on said substrate board, at least a portion of said transmission line transformer disposed on at least one of said regions of said substrate;
- and
- wherein said transmission line transformer is at least one of a stripline construction, a microstrip construction, and a twin-line construction.
1 more element
Dependencies are inferred from the claim text.