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| 一种通信应用中的X波段行波管预失真器 | |
| 引用本文： | 胡欣,王刚,王自成,罗积润. 一种通信应用中的X波段行波管预失真器[J]. 真空科学与技术学报, 2011, 31(6): 716-720. DOI: 10.3969/j.issn.1672-7126.2011.06.13 |
| 作者姓名： | 胡欣 王刚 王自成 罗积润 |
| 作者单位： | 1. 中国科学院电子学研究所高功率微波源与技术重点实验室 北京100190;中国科学院研究生院 北京100039 2. 中国科学院电子学研究所中国科学院空间行波管研发中心 北京100190 3. 中国科学院电子学研究所高功率微波源与技术重点实验室 北京100190 |
| 摘 要： | 随着通信技术的发展,行波管功率放大器预失真电路显得日益重要。不过,目前预失真电路在调节过程中增益和相位扩张量不能独立调节,很难保证增益和相位同时满足线性化指标的要求,给调节工作带来了困难。本文介绍一种预失真线性化器电路,该电路结构简单,在相位扩张量变化较小的同时,可以对增益扩张量进行调节控制。实验表明,在频率为8.38~8.58 GHz和额定输入功率范围内,预失真器增益和相位扩张量分别为6 dB和42°,满足通信工程中对行波管功率放大器补偿的需求。 |
| 关 键 词： | 行波管功率放大器 非线性失真 预失真器 增益和相位扩张量 |
Novel Predistortion Linearizer of X-Band Traveling Wave Tube in Communication Applications |
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| Hu Xin,Wang Gang,Wang Zicheng,Luo Jirun. Novel Predistortion Linearizer of X-Band Traveling Wave Tube in Communication Applications[J]. JOurnal of Vacuum Science and Technology, 2011, 31(6): 716-720. DOI: 10.3969/j.issn.1672-7126.2011.06.13 | |
| Authors: | Hu Xin Wang Gang Wang Zicheng Luo Jirun |
| Affiliation: | Hu Xin1,3,Wang Gang2,Wang Zicheng1,Luo Jirun1(1.Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China,2.Space Traveling Wave Tube Research andDevelopment Center,3.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
| Abstract: | A novel type of the predistortion linearizer of X-band traveling wave tube amplifier(TWTA) in communication applications was developed.The newly-developed predistortion linearizer with a rather simple circuit is capable of controlling the gain expansion under the condition of small variations in the input power at a given dynamic range,and of producing little phase expansion.Moreover,the gain expansion of the predistortion linearizer was simulated with the Astrophysics Data System(ADS).The test results show... |
| Keywords: | Traveling wave tube amplifiers Nonlinear distortion Predistortion linearizer Expansion of gain and phase |
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