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一种用于毫米波行波管的微带预失真电路

虞崇志 胡波雄 唐康凇 王刚 苏小保

虞崇志, 胡波雄, 唐康凇, 王刚, 苏小保. 一种用于毫米波行波管的微带预失真电路[J]. 电子与信息学报, 2017, 39(2): 474-481. doi: 10.11999/JEIT160395
引用本文: 虞崇志, 胡波雄, 唐康凇, 王刚, 苏小保. 一种用于毫米波行波管的微带预失真电路[J]. 电子与信息学报, 2017, 39(2): 474-481. doi: 10.11999/JEIT160395
YU Chongzhi, HU Boxiong, TANG Kangsong, WANG Gang, SU Xiaobao. Micro-strip Predistortion Circuit for Millimeter-wave Travelling Wave Tube[J]. Journal of Electronics & Information Technology, 2017, 39(2): 474-481. doi: 10.11999/JEIT160395
Citation: YU Chongzhi, HU Boxiong, TANG Kangsong, WANG Gang, SU Xiaobao. Micro-strip Predistortion Circuit for Millimeter-wave Travelling Wave Tube[J]. Journal of Electronics & Information Technology, 2017, 39(2): 474-481. doi: 10.11999/JEIT160395

一种用于毫米波行波管的微带预失真电路

doi: 10.11999/JEIT160395
基金项目: 

国家科技重大专项(2012ZX01007004001),国家自然科学基金(61401427)

Micro-strip Predistortion Circuit for Millimeter-wave Travelling Wave Tube

Funds: 

The National Science and Technology Major Project (2012ZX01007004001), The National Natural Science Foundation of China (61401427)

  • 摘要: 随着通信技术的发展,行波管预失真电路的研究变得越来越重要。该文针对基于肖特基二极管的非线性发生器,首次分析了二极管SPICE(Simulation Program with Integrated Circuit Emphasis)模型参数中零偏压结电容和串联电阻对预失真扩张曲线的影响。对目前的微带预失真电路工作在K波段以下,绝对或相对带宽一般不超过1.8 GHz和4%,需在输入及输出端加隔离器等不足,基于ADS(Advanced Design System)软件设计并加工了一种用于中心频率30 GHz,绝对和相对带宽为2 GHz和6.67% 的毫米波行波管的微带预失真电路。分别测试行波管和级联线性化器后的行波管,29 GHz, 30 GHz和31 GHz的增益和相位压缩量分别可以从7.5 dB和40 , 7.3 dB和50 , 7.1 dB和59改善到3.8 dB和10 , 3.7 dB和12 , 2.4 dB和15以内。双音测试结果表明,为了达到通信中载波与三阶交叉调制分量抑制比(C/IM3)25 dBc的要求,单独行波管在29 GHz, 30 GHz和31 GHz时需分别回退17 dB, 18 dB和18 dB,而加入线性化器后的行波管,只需分别回退12 dB, 9 dB和8 dB,也即加线性化器可改善5 dB, 9 dB和10 dB,极大地提升了行波管的线性度,具有重要工程应用价值。
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出版历程
  • 收稿日期:  2016-04-22
  • 修回日期:  2016-09-23
  • 刊出日期:  2017-02-19

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