Automatic reduction of intermodulation products in high power linear amplifiers
US4580105A · kind A · utility
58Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1985 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Jan 25, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3212
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A distortion simulating pilot is injected at the input of an amplifier which uses feed forward distortion correction. The magnitude of the pilot signal in the amplifier output is used to control a decreasing step size circuit algorithm for adjusting the gain and phase of the feed forward distortion signal to eliminate substantially the pilot signal and the distortion introduced by the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.