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:
May. 17, 1988
Filed:
Jun. 17, 1986
Applicant:
Inventors:
Jun-ichi Nishizawa, Sendai, JP;
Kaoru Motoya, Sendai, JP;
Assignee:
Zaidan Hojin Handotai Kenkyu Shinkokai, Sendai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 96 ; 3311 / ; 3311 / ; 3311 / ;
Abstract
An extremely-high frequency semiconductor oscillator which produces a large but substantially noise-free output power with minimized fluctuation of output power for changes in device temperature is realized by using, as its power producing component, a semiconductor transit time diode having a frequency-dependent negative resistance mounted in a cavity resonator of a wave guide means provided with a tuning short at one side of the waveguide means and being designed to perform carrier injection by a combination of tunnel and avalanche phenomena.