High-level modulator with bipolar modulation reference
US5424685A · kind A · utility
2Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1994 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Feb 10, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0233
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bipolar modulator and its associated control devices for use with a high-efficiency amplifier in an RF transmitter. The modulator receives an inverted reference signal that has passed through at least two comparators. The modulator output is filtered and then rectified and coupled to a high-efficiency power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.