Search International and National Patent Collections

1. (WO2018182508) METHOD AND APPARATUS FOR TUNING A RADIO FREQUENCY PREDISTORTER

Pub. No.:    WO/2018/182508    International Application No.:    PCT/SG2018/050132
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Mar 24 00:59:59 CET 2018
IPC: H03F 1/32
Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventors: SHI, Bo
LEONG, Siew Weng
LUO, Bin
WANG, Wenjiang
Title: METHOD AND APPARATUS FOR TUNING A RADIO FREQUENCY PREDISTORTER
Abstract:
An apparatus for optimizing the bias setting of a RF predistortion linearizer for a power amplifier to operate across different frequency channels is provided. The apparatus may include a radio frequency power amplifier. The apparatus may include a radio frequency predistortion linearizer that predistorts a radio frequency signal and passes the predistorted radio frequency signal to the radio frequency power amplifier for amplification. The radio frequency predistortion linearizer may be configured based on a set of bias control settings for different operating frequencies. The apparatus may include a filtering and detection component configured to monitor performance of the radio frequency power amplifier and fine-tune the set of bias control settings based on the monitored performance of the radio frequency power amplifier.