Method to increase the tuning voltage range of MOS varactors
US6667539B2 · kind B2 · utility
6Cited by
21References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Jun 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D1/66
Abstract
A varactor circuit having an increased tuning range comprises a first varactor in series with a second varactor between first and second terminals. A resistor is connected between the first and second terminals. A tap of the resistor is connected to a junction of the first and second varactors. This circuit effectively doubles tuning range compared to a single varactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.