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:
Jun. 07, 1977
Filed:
May. 06, 1976
Applicant:
Inventor:
Juri G Leetmaa, Los Angeles, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P / ; H01P / ; H01P / ; H01P / ;
U.S. Cl.
CPC ...
333 / ; 333 / ; 333 / ; 333 / ;
Abstract
A coupled-cavity microwave filter including a plurality of relatively high Q cylindrical cavity filters, a relatively large non-adjustable iris aperture coupling adjacent ones of the cavities, a relatively smaller secondary tuning aperture located near the edge of the irises separating the cavities, each such secondary tuning aperture containing a tuning screw extending through the wall of the cavity in order to provide adjustment of the coupling between such adjacent cavities without degrading the cavity Q.