A reflective TWTA predistortion linearizer for Ka-band application

DOI

10.2991/iccsee.2013.100How to use a DOI?

Keywords

predistortion linearizer, nonlinear transfer characteristics, Carrier-to-Intermodulation, anti-parallel schottky diodes

Abstract

A predistortion linearizer used for Ka-band travelling wave tube amplifiers (TWTAs) was proposed. Based on analysis of nonlinear transfer characteristics of TWTA using a power series, the inverse nonlinear distortion characteristics of predistorter which was also the model of predistortion linearizer was proposed. A reflective structure was used to realize the linearizer, it’s composed of anti-parallel schottky diodes, quadrature hybrid, matching networks seen from the diodes. The Carrier-to-Intermodulation(C/I) of Ka-band TWTA was improved a maximum of 19dB by proposed predistortion linearizer.

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  - Yongfei Wang
AU  - Dongfang Zhou
AU  - Qing Hu
AU  - Ying Zhao
PY  - 2013/03
DA  - 2013/03
TI  - A reflective TWTA predistortion linearizer for Ka-band application
BT  - Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)
PB  - Atlantis Press
SP  - 389
EP  - 393
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccsee.2013.100
DO  - 10.2991/iccsee.2013.100
ID  - Wang2013/03
ER  -