矢量调制器脉冲功率放大器在雷达中的相位误差补偿

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON) Pub Date : 2016-05-09 DOI:10.1109/MIKON.2016.7491941

P. Zawada, Paweł Gontarek, P. Barmuta, M. Grzegrzolka, A. Lewandowski

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引用次数: 1

摘要

本文介绍了一种基于数字预失真的脉冲功率放大器相位误差补偿方法。对基于Avago ATF52189 HEMT的1.3 GHz频率功率放大器的预失真方法进行了评估。给出了功率放大器相位失真逆模型的测量方法和提取步骤。采用该方法，最大相位误差从5°减小到0.8°，增益变化仅在0.1 dB以内。

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Phase-error compensation of a pulsed power amplifier with a vector modulator in radar applications

This paper describes a phase-error compensation method employing the digital predistortion for pulsed power amplifiers in radar applications. The predistortion method was evaluated for the power amplifier based on the commercially available Avago ATF52189 HEMT at frequency 1.3 GHz. The measurement setup and the extraction procedure of the inverse model of the power-amplifier phase distortion is presented. Using proposed method the maximum phase-error was reduced from 5° to 0.8°, while the gain changes only within 0.1 dB.

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来源期刊

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON)

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