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, 1991
Filed:
Mar. 14, 1990
Applicant:
Inventor:
Michel Martheli, Jouy le Moutier, FR;
Assignee:
Alcatel N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 99 ; 3311 / ; 3311 / ;
Abstract
A microwave oscillator having at least one transistor (1), which may be bipolar or otherwise. A tunable reactive circuit (13, 15, 16) suitable for adjusting the transistor's zone of potential instability is inserted in the emitter circuit of the transistor (1) (or in the source circuit of an FET). The reactive circuit comprises a series length of transmission line (13) and a parallel capacitance (15, 16) constituted, at least in part, by a conducting slab (15) of adjustable size.