Microwave VCO having reduced supply voltage
US5734299A · kind A · utility
4Cited by
8References
15Claims
0Family size
Inventor
Key dates
| Filing date | Jul 25, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Jul 25, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3211
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transconductance amplifier for use in a low noise, microwave voltage controlled oscillator. The transconductance amplifier incorporates a linear amplifier having ratioed transistors to provide linearized gain. A tuning arrangement combines in-phase and out of phase currents in an inverse ratio to provide a constant D.C. current sum. The tuning circuit has been arranged to operate without a cascode stage such that the power supply voltage requirement is reduced from 5.0 volts to 3.3 volts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.