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. 10, 2008
Filed:
Feb. 07, 2006
Applicants:
Ramesh Harjani, Minneapolis, MN (US);
Byung-hoo Jung, West Lafayette, IN (US);
Inventors:
Ramesh Harjani, Minneapolis, MN (US);
Byung-Hoo Jung, West Lafayette, IN (US);
Assignee:
Regents of the University of Minnesota, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A VCO is based on a capacitively emitter degenerated topology which uses a cross-coupled MOS pair as the degeneration cell. The cross-coupled MOS pair contributes additional conductance and results in a higher maximum attainable oscillation frequency and better negative resistance characteristics as compared to the other topologies at high frequencies. These properties of the disclosed VCO combined with small effective capacitance enable low-power low-noise high-frequency VCO implementations.