Patent · US Active

High efficiency harmonic voltage controlled oscillator (VCO)

US8081039B1 · kind B1 · utility

6Cited by

4References

12Claims

0Family size

Assignee

Marvell International Ltd. · BM

Inventors

Alessandro Venca · Tortona, IT
Enrico Sacchi · Pavia, IT
Sehat Sutardja · Los Altos, US

Key dates

Filing date	Jun 3, 2010
Grant date	Dec 20, 2011
Priority date	—
Expiry date	Jun 15, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH03B2200/0064
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

In one embodiment, a voltage controlled oscillator (VCO) is provided. The VCO includes a tank circuit. Also, the VCO includes a first pair of transistors. The drains of the first pair of transistors are coupled to the tank circuit and the gates of the first pair of transistors are cross-coupled with the drains of the first pair of transistors. The first pair of transistors each have a first threshold voltage. The VCO further includes a second pair of transistors. The drains of the second pair of transistors are respectively coupled to the sources of the first pair of transistors and the gates of the second pair of transistors are respectively coupled to the gates of the first pair of transistors, The second pair of transistors each have a second threshold voltage higher than the first threshold voltage.

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