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:
Mar. 02, 2021
Filed:
Jun. 25, 2019
Applicant:
Nxp Usa, Inc., Austin, TX (US);
Inventor:
Yi Yin, Munich, DE;
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03B 5/18 (2006.01); H03K 3/354 (2006.01);
U.S. Cl.
CPC ...
H03B 5/124 (2013.01); H03B 5/1228 (2013.01); H03B 5/1231 (2013.01); H03B 2200/004 (2013.01);
Abstract
The present application relates to a differential Colpitts voltage-controlled oscillator (VCO) circuit, which comprises a pair of transistors with control terminals biased by a common biasing voltage and a pair of couplers arranged to cross-couple corrector/drain of the transistors and the base/gate of the differential transistors. The pair of couplers have a coupling factor k, which used to enhance the transconductance of the transistor pair, therefore can be used for power consumption reduction and phase noise minimalization.