Analog varactor
US7394329B2 · kind B2 · utility
1Cited by
1References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/36
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillator includes a plurality of varactor cells to receive a control signal to control a frequency of the oscillator. Each of the varactor cells includes a switch that includes a first terninal to receive the control signal and a second terminal such that the switch operates to control a capacitance of the varactor cell in response to a voltage between the first and second terminals. The oscillator includes a bias circuit to provide a different bias voltage to each second terminal and an amplifier that is coupled to the varactor cells to generate an oscillating signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.