Phase-accurate multi-phase wide-band radio frequency local oscillator generator
US7224235B2 · kind B2 · utility
17Cited by
1References
4Claims
0Family size
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Key dates
| Filing date | Sep 6, 2005 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Nov 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B27/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A local oscillator (LO) generator for driving a bank of mixers that provides precise phase relationship between multi-phase LO outputs comprises a shift register using slave-master-slave flip-flop elements. The LO generator can be used over a wide operating frequency range. The LO generator is suitable for driving a multi-phase LO clock input to a harmonic suppression mixer. A pattern generator produces a pattern signal and a reclocking signal that determines the frequency of the LO signals and the phase delay between the LO output phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.