Improvement of Linear Amplification with Nonlinear Components Based on COX’s Theory

DOI

10.2991/eeic-13.2013.12How to use a DOI?

Keywords

RF power amplifiers; Microwave Circuit; power efficiency

Abstract

A theoretical research on Linear Amplification with Nonlinear Components (LINC) is described with an improved theory to COX’s proposed in this article. Input RF signal is separated into envelope component and constant envelope angle-modulated component in the circuit. Two branches of constant envelope angle-modulated component phase modulated by envelope component respectively and conversely are converted frequency and amplified. At last, the amplified up-convertion input signal is achieved through a subtracting circuit. Because the amplification of constant envelope signal can be carried on without distortion in nonlinear region, the whole work efficiency is very high. In this article the power gain of LINC amplifier is derived as and the simulation of the circuit is operated and analyzed. The expectation of theoretical amplification effect is realized and high power efficiency is obtained.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chengguo Liu
AU  - Shang-he Liu
AU  - Guowei Yang
AU  - Zhipeng Wu
PY  - 2013/12
DA  - 2013/12
TI  - Improvement of Linear Amplification with Nonlinear Components Based on COX’s Theory
BT  - Proceedings of the 3rd International Conference on Electric and Electronics
PB  - Atlantis Press
SP  - 51
EP  - 54
SN  - 1951-6851
UR  - https://doi.org/10.2991/eeic-13.2013.12
DO  - 10.2991/eeic-13.2013.12
ID  - Liu2013/12
ER  -