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:
Sep. 27, 2005
Filed:
Mar. 05, 2004
Nicolaas D Du Toit, Columbia, MD (US);
Nicolaas D Du Toit, Columbia, MD (US);
Paratek Microwave, Inc., Columbia, MD (US);
Abstract
A voltage controlled oscillator incorporating voltage tunable capactiors, comprising at least one resonator coupled into a base circuit of a bipolar transistor, said at least one resonator including at least one voltage tunable capacitor. The bipolar transistor includes a collector which terminates in a radial micro strip stub and an emitter which produces an output via an impedance matching circuit. Also, included is an integral switch mode power supply providing power to said base circuit via a first power supply filter, and to a controller via a second power supply filter. The controller scales the user-selected control voltage range to the levels required by said voltage tunable capacitors associated with said at leat one resonator.