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. 05, 1980
Filed:
Aug. 21, 1978
Applicant:
Inventors:
Yutaka Shimoji, Ebina, JP;
Youichi Arai, Machida, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ;
U.S. Cl.
CPC ...
330277 ; 330 56 ; 3301 / ; 330286 ; 330295 ; 330296 ; 330297 ;
Abstract
Disclosed is a bias circuit of an amplifier for a microwave circuit, which amplifier is comprised of a pair of amplifier modules and at least one directional quadrature coupler having four ports including an isolation port, wherein the bias circuit is connected to the isolation port of the directional quadrature coupler.