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  • 李 凯,黄 建,李 培.毫米波线性化固态功放的研制[J].电讯技术,2011,51(2): - .    [点击复制]
  • LI Kai,HUANG Jian,LI Pei.Development of linearizer for millimeter-wave solid state power amplifier[J].,2011,51(2): - .   [点击复制]
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毫米波线性化固态功放的研制
李凯,黄建,李培
0
(中国西南电子技术研究所,成都 610036;电子科技大学 物理电子学院,成都 61005 4)
摘要:
研制了工作于Ka频段的10 W线性化固态功放。采用预失真技 术的线性化单元主要由一个肖特基二极管和一个电容并联构成,具有增益扩展和相位延迟的 特性, 并且其增益和相位特性具有可调性。将其应用于工作频率为30 GHz、输出功率为10 W 的功放,双音激励信号频率间隔为5 MHz,三阶互调(IMD3)可以改善15 dBc。
关键词:  毫米波  固态功放  三阶互调  预失真  线性化器
DOI:
基金项目:
Development of linearizer for millimeter-wave solid state power amplifier
LI Kai,HUANG Jian,LI Pei
(Southwest China Institute of Electronic Technology,Chengdu 610036,China;Institute of Physical Electronics,University of Electronic Science and Techn ology of China,Chengdu 610054,China)
Abstract:
A linearizer for 10 W Solid State Power Amplifier(SSPA) in Kaband is devel oped. The millimeterwave(MMW) predistortion linearizer, which is composed of a Schottky diode and a parallel capacitor, has gain expansion and phase shift char acteristics, and its characteristics can be controlled. By applying this lineari zer to a 30 GHz power amplifier with 10 W output power, and using a twotone prompting sign al with 5 MHz spacing, the improvement of IMD3 is 15 dBc.
Key words:  millimeter wave(MMW)  solid state power amplifier(SSPA )  three order intermodulation  predistortion  linearizer
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