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:
Jun. 09, 2009
Filed:
Feb. 05, 2007
Sheng-lyang Jang, Taipei, TW;
Shao-hua Lee, Taipei County, TW;
Yun-hsueh Chuang, Taoyuan County, TW;
Chung-ching Chiu, Nantou County, TW;
Sheng-Lyang Jang, Taipei, TW;
Shao-Hua Lee, Taipei County, TW;
Yun-Hsueh Chuang, Taoyuan County, TW;
Chung-Ching Chiu, Nantou County, TW;
National Taiwan University of Science and Technology, Taipei, TW;
Abstract
A voltage control oscillator (VCO) includes a VCO circuit and a back-gate coupling circuit, wherein the VCO circuit includes at least a first transistor, a second transistor and a resonant cavity formed by an inductor and a capacitor. The back-gate coupling circuit is formed by a plurality of capacitors and a plurality of resistors. In the embodiments of the present invention, the capacitors are coupled to the back-gate terminals of the first transistor and the second transistor, so as to reduce the power consumption and the phase noise of the VCO.