RF transmitter with extended efficient power control range
US6681101B1 · kind B1 · utility
163Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2000 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A highly efficient radio frequency (RF) transmitter provides both wide bandwidth and an extended power control range. The RF transmitter includes stage switching, bias adjustment, and drain supply modulation. These components are used to provide fine and coarse power control and EER envelope fluctuations. The RF transmitter is useful in wireless communications to increase both handset talk time and battery life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.