Digital predistortion for power amplifier

Details Digital predistortion for power amplifier Digital predistortion for power amplifier

2005-04-19

2005-04-19

Nguyen, Khanh V. (Department: 2817)

Amplifiers

Hum or noise or distortion bucking introduced into signal...

C375S296000, C455S063100

Reexamination Certificate

active

06882221

ABSTRACT:
Apparatus and a corresponding method for predistorting an input signal applied to a radio frequency (RF) power amplifier, to compensate for amplifier distortion at high powers. The RF amplifier input and output signals are continuously monitored and difference signals are generated in an RF phase discriminator. The difference signals are converted to digital form and stored in a lookup table in the form of running averages of an RF amplifier gain compression value and an RF amplifier output phase value for each observed RF input power value. A predistorter module retrieves these values and predistorts the RF amplifier input by way of compensation.

REFERENCES:
patent: 5867065 (1999-02-01), Leyendecker
patent: 5892397 (1999-04-01), Belcher et al.
patent: 6141390 (2000-10-01), Cova
patent: 6246286 (2001-06-01), Persson

Affiliated with

Also associated with

Rating

Digital predistortion for power amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital predistortion for power amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital predistortion for power amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3434177