Patent · US Active

VCO utilizing an auxiliary varactor with temperature dependent bias

US8466750B2 · kind B2 · utility

8Cited by

1References

20Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Janice Chiu · Tustin, US
Hooman Darabi · Irvine, US
Tom Li · Irvine, US
Shrlung Chen · Irvine, US

Key dates

Filing date	Jun 27, 2011
Grant date	Jun 18, 2013
Priority date	—
Expiry date	Aug 23, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03L7/183
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A technique to use an auxiliary varactor coupled to a tuning varactor, in which a temperature compensated bias signal adjusts a bias on the auxiliary varactor to maintain a voltage controlled oscillator (VCO) from drifting in frequency as operating temperature for the VCO changes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.