High dynamic range receiver front-end with Q-enhancement
US8606211B2 · kind B2 · utility
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3References
22Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Sep 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/241
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.