On-chip tunable artificial tank circuit
US7541882B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jul 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/391
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a tuned circuit tuned to an input signal having a predetermined radio frequency, the tuned circuit comprising a tank circuit having a loaded ring oscillator circuit with a resonant frequency corresponding to said radio frequency. The tank circuit is configured for a predetermined frequency that the tuned circuit is designed for. In the case wherein the tuned circuit is in CMOS 0.18 μm technology, the tuned circuit is configured for a frequency of up to 7 GHz. The tank circuit may be in the form of an integrated circuit having a size of not more than 200 μm by 200 μm. The tank circuit may form part of a low-noise amplifier or part of a mixer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.