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. 03, 1987
Filed:
Oct. 25, 1984
Harold N Selim, Wichita, KS (US);
IFR, Inc., Wichita, KS (US);
Abstract
A wideband, microwave regenerative divider with varactor tuning in which a double-balanced mixer is incorporated in a feedback loop with a varactor-tuned filter and an RF amplifier in the forward loop, with the RF amplifier output fed directly back to the mixer. A series resonant circuit formed by two serially connected back-to-back varactors interconnected by an inductor is tuned by application of a DC tuning voltage to a center tap of the inductor. In the preferred embodiment two regenerative dividers are connected in series in a YIG oscillator system which includes a programmable tuning circuit connected between the VCO tuning signal input for the YIG oscillator and the tuning voltage inputs of the respective regenerative dividers.