The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2026
Filed:
Sep. 20, 2023
Applicant:
Lockheed Martin Corporation, Bethesda, MD (US);
Inventor:
Jason Stewart Wrigley, Littleton, CO (US);
Assignee:
LOCKHEED MARTIN CORPORATION, Bethesda, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/208 (2006.01); H01P 3/12 (2006.01); H01P 11/00 (2006.01);
U.S. Cl.
CPC ...
H01P 1/208 (2013.01); H01P 3/12 (2013.01); H01P 11/007 (2013.01);
Abstract
Provided herein are various enhancements for waveguide filters. A waveguide structure includes a series of iris-coupled resonant cavities forming a waveguide filter folded at a midpoint and having at least one cross-coupling established between non-adjacent resonant cavities. Resonant cavities at ends of the waveguide filter comprise bends coupled to ports arranged perpendicularly to a remainder of the resonant cavities. Stubs are included having inputs coupled at the ports and comprising short-circuited resonant cavities aligned parallel to the iris-coupled resonant cavities.