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:
Feb. 01, 1983
Filed:
Mar. 19, 1980
Applicant:
Inventor:
Stuart R Longley, Limpsfield, GB;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 96 ; 3311 / ; 3311 / ; 3311 / ;
Abstract
A microwave evanescent-mode oscillator comprises a length of waveguide W1 having a cut-off frequency higher than the working frequency of the oscillator together with a Gunn element G disposed within the waveguide characterized in that the oscillator comprises, spaced in sequence along the waveguide a Gunn element G post-coupled into the waveguide and spaced from a first end of the waveguide, a capacitive member C and at the other end of the waveguide an end wall formed by a diaphragm D having therein an output aperture I for coupling out energy from the waveguide.