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:
Nov. 28, 1978
Filed:
Aug. 29, 1977
Applicant:
Inventors:
Martin S Stringfellow, Tempe, AZ (US);
Michael K Waldo, Phoenix, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H01P / ;
U.S. Cl.
CPC ...
333 / ; 331176 ;
Abstract
A housing with a microwave cavity and an external opening defined therein, a tubular waveguide section affixed in said opening with a tuning rod slideably positioned therein and an outer end affixed to an outer end of a sleeve mounted in surrounding relationship thereto with the inner end of the sleeve affixed to the housing. The sleeve and tuning rod are formed of dielectric material so that temperature changes on the sleeve cause movement of the rod in the cavity and compensate for changes in the resonant frequency of the cavity while the rod and the waveguide cooperate to prevent radiation leakage.