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. 20, 2001
Filed:
Feb. 03, 2000
Applicant:
Inventors:
Andrew Zhang, Cerritos, CA (US);
Roy H. Fladager, Irvine, CA (US);
Assignee:
Conexant Systems, Inc., Newport Beach, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 ;
U.S. Cl.
CPC ...
H03B 5/12 ;
Abstract
Method and apparatus for extending a VCO tuning range. A shunt inductance connected in parallel with a varactor reduces the effective capacitance of the varactor and increases the capacitance ratio. This increases the VCO tuning range without increasing the tuning sensitivity variation and the phase noise.