Post-amplifier filter rejection equalization
US6674808B1 · kind B1 · utility
21Cited by
19References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3233
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A post-HPA filter rejection equalizer system and method locally equalizes post-HPA filtering. A predistorter (20) uses a phase error to control the predistortion, and an equalizer (46) uses a magnitude error to control the equalization. The equalizer samples the HPA output multiple occurrences in a burst fashion. The equalized signal is then used to determine phase and magnitude errors. The phase errors (54) are used to update the predistorter (20), and the magnitude errors (52) are used to update the analytic equalizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.