MMIC-compatible power amplifier
US5089791A · kind A · utility
3Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/604
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The parasitic capacitance which is inherent in an amplifier stage fabricated by MMIC or MIC technology oftentimes is cumbersome and of little use. The present invention utilizes this parasitic capacitance for effecting a quadrature circuit, fabricated onto the same substrate as the amplifiers for matching and biasing the amplifiers, thereby providing for broadband operation. When a pair of amplifiers are driven in quadrature, there results a low Q, low inductance circuit which has enhanced efficiency and operates at a decreased temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.