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:
Sep. 08, 1998
Filed:
Apr. 19, 1996
Applicant:
Inventor:
Kawthar Abdelhamid Zaki, Potomac, MD (US);
Assignee:
University of Maryland, College Park, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H01B / ;
U.S. Cl.
CPC ...
505210 ; 505700 ; 505866 ; 333202 ; 333212 ; 333 99005 ;
Abstract
A microwave filter has at least one resonator with a cavity and a conducting or superconducting loading element inside the cavity. The resonator also has first and second tuning screws at right angles and a mode coupling screw at 45.degree. angles to both tuning screws. This filter can achieve a high Q in a small size.