@inproceedings{c1ed6b63c3f74b08a58aa4da3d113a2c,
title = "Characterization of the power amplifier group delay by using predistortive cancellation technique",
abstract = "This paper proposes a novel memory effect measurement technique in RF power amplifiers (PAs) using two-tone intermodulation distortion (IMD) signal with very simple and intuitive algorithm. Based on the proposed predistortive tone cancellation technique, the proposed measurement method is capable of measuring relative phase and magnitude of the third-order and fifth-order IMD as well as the fundamental signal. The measured relative phase between the higher and lower IMD signal for specific tone spacing can be interpreted as the group delay information of the IMD signal concerned. From the group delay analysis, we can conclude that adaptive control of group delay as well as the magnitude and phase is a key function in increasing the linearization bandwidth and the dynamic range in the predistortion (PD) technique.",
author = "Heungjae Choi and Girdhari Chardhary and Youggyu Kim and Yongchae Jeong and Kim, \{Chul Dong\}",
year = "2010",
language = "English",
isbn = "9782874870163",
series = "European Microwave Week 2010, EuMW2010: Connecting the World, Conference Proceedings - European Microwave Conference, EuMC 2010",
pages = "1014--1017",
booktitle = "European Microwave Week 2010, EuMW2010",
note = "13th European Microwave Week 2010, EuMW2010: Connecting the World - 40th European Microwave Conference, EuMC 2010 ; Conference date: 28-09-2010 Through 30-09-2010",
}