Tunable wideband bandpass filter, tunable multi-band bandpass filter using the same, and methods therefore
US7259643B2 · kind B2 · utility
25Cited by
3References
25Claims
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Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Oct 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A tunable wideband bandpass filter that can digitally vary the center frequency and bandwidth of a signal to be filtered, and includes a plurality of switched-capacitor banks for varying capacitance and converting the center frequency and bandwidth into a digital signal, and a plurality of inductors provided for inductance to generate the center frequency, the plurality of switched-capacitor banks that may be integrated into a signal chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.