Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hao Xin0
John A. Higgins0
Date of Patent
July 31, 2007
0Patent Application Number
108746670
Date Filed
June 22, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A filter includes a waveguide with at least one impedance structure with a resonant frequency. The impedance structure is positioned in the waveguide to reflect signals at the resonant frequency. The filter can be tunable by including variable capacitance devices in the impedance structure(s) so that the resonant frequency can be adjusted.
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