占空比对GaN功率放大器脉冲间稳定性的影响

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON) Pub Date : 2016-05-09 DOI:10.1109/MIKON.2016.7492057

J. Delprato, M. Campovecchio, D. Barataud, P. Eudeline, C. Tolant

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引用次数: 6

摘要

本文介绍了一种脉冲对脉冲(P2P)稳定性外差测量系统及其在GaN HEMT微波功率放大器时域测量中的应用。包络和P2P稳定性测量进行了不规则的射频脉冲序列，集成了每个脉冲序列之间的长沉默。本文主要研究了射频脉冲宽度和占空比对各脉冲序列的影响。在10W s波段GaN功率放大器上进行了时域包络和P2P稳定性的相干测量。事实上，这项工作的一个目的是说明温度和俘获效应对GaN功率放大器的包络响应和P2P稳定性的巨大影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Impact of the duty cycle on the pulse-to-pulse stability of a GaN power amplifier

This paper presents a heterodyne measurement system of the pulse-to-pulse (P2P) stability and its application to time-domain measurements of a GaN HEMT microwave power amplifier. Envelope and P2P stability measurements are performed for an irregular RF pulse train which integrates a long silence between each pulse sequence. This paper is focused on the impact of RF pulse width and duty cycle on each pulse sequence. Coherent measurements of time-domain envelope and P2P stability are performed on a 10W S-band GaN power amplifier. Indeed, one aim of this work is to illustrate the great impact of temperature and trapping effects on the envelope response and P2P stability of GaN power amplifiers.

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

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