Q-boosting circuit
US7532001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2006 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Dec 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1296
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is a Q-boosting circuit for improving a Q factor in a radio frequency (RF) integrated circuit of a semiconductor device using a transformer instead of an inductor. The Q-boosting circuit couples a negative resistance circuit to a pair of terminals of a transformer to reduce a resistance component of the transformer, thereby increasing a mutual inductance component. Therefore, it is possible to obtain a more improved Q factor than a conventional Q factor through adjustment of an inductance and a resistance component, and to obtain the Q factor having a wide range from several tens to several hundreds according to a frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.