L波段平衡式放大器的研究和分析  

The research and analysis of a L-band balanced amplifier

作　　者：臧宏 张青春 朱良凡 赵桂芳[1] 朱维玮 ZANG Hong;ZHANG Qing⁃chun;ZHU Liang⁃fan;ZHAO Gui⁃fang;ZHU Wei⁃wei(The 5720 factory of the Chinese People’s Liberation Army,Wuhu 241000,China;Anhui Huadong Photoelectric Technology Research Institute,Wuhu 241000,China)

机构地区：[1]中国人民解放军第5720工厂,安徽芜湖241000 [2]安徽华东光电技术研究所有限公司,安徽芜湖241000

出　　处：《电子设计工程》2020年第1期134-139,共6页Electronic Design Engineering

基　　金：国家自然科学基金青年基金资助项目(61501159)

摘　　要：研究了一种可用于无线通信领域并在频点1.03 GHz工作的平衡放大器。本文采用微波软件ADS和HFSS联合对平衡放大器的放大模块和滤波电路模块进行仿真和优化。该放大器的中心频率为1.03 GHz,带宽为200 MHz,中心频点处噪声系数为3.2,增益大于10 dB,输入和输出反射系数均小于12 dB,增益平坦度小于0.5 dB/50 MHz,稳定系数大于1。平衡放大器具有体积小,结构简单,价格低,易于组装,高灵活性和绝对稳定性的优点,可以很好地应用于射频工程应用和微波放大要求。A balanced amplifier that can be used in the field of wireless communication and works at 1.03 GHz is studied.In this paper,the microwave simulation software ADS and HFSS are used to simulate and optimize the amplification module and the post-test circuit module of the balanced amplifier.The simulation results are similar to the testresults.The center frequency is 1.03 GHz,the bandwidth is 200 MHz,the gain is greater than 15 dB,and the input standing wave ratio is less than 1.8.The gain flatness is less than 0.5 dB and the stability factor is greater than 1.The balanced amplifier has the advantages of small size,simple structure,easy assembly,high flexibility and high stability,and can be well applied to small general-purpose RF and microwave amplification requirements.

关 键 词：平衡式放大器 增益 稳定系数 S参数 微波测试 

分 类 号：TN722.3[电子电信—电路与系统]