基于滤波器综合分析法的118 GHz单刀二掷开关
Received:April 05, 2017  Revised:June 07, 2017  点此下载全文
引用本文:姚常飞,陈振华,葛俊祥,周明,魏翔.基于滤波器综合分析法的118 GHz单刀二掷开关[J].Journal of Infrared and Millimeter Waves,2017,36(5):526~533
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Author NameAffiliationE-mail
YAO Chang-Fei School of Electronic and Information Engineering,Nanjing University of Information Science and Technology yaocf1982@163.com 
CHEN Zhen-Hua School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing Jiangsu  
GE Jun-Xiang School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing Jiangsu  
ZHOU Ming Department of Microwave and Millimeter Wave Modules,Nanjing Electronic Devices Institute Nanjing  
WEI Xiang Department of Microwave and Millimeter Wave Modules,Nanjing Electronic Devices Institute Nanjing  
中文摘要:采用滤波器综合分析方法, 基于分立式AlGaAs/GaAs异质结PIN二极管, 根据其等效寄生参数, 综合出单刀二掷开关集总参数滤波器模型, 以此分析其等效分布参数电路, 设计出了118 GHz星载辐射计用单刀二掷开关准单片, 开关电路尺寸6×2.5×0.1 mm3.通过开关模块封装用波导-微带过渡和键合金带插损的分析研究, 研制出了低插损的118 GHz开关模块, 在110~120 GHz, 测得开关插损小于3.0 dB, 插损典型值2.6 dB;开关隔离度大于22 dB;开关响应时间、导通时间、关断时间、恢复时间分别小于18 ns、20 ns、10 ns、18 ns, 该准单片作为通道切换开关可集成应用于118 GHz收发组件中.
中文关键词:单刀二掷开关  PIN二极管  插损  隔离
 
118 GHz single pole double throw switches using filter synthesis method
Abstract:118 GHz single pole double throw (SPDT) switches were designed and tested for radiometers in satellite applications. Filter synthesis method was proposed for the switches analysis. Based on equivalent circuit of the discrete AlGaAs/GaAs heterojunction PIN diodes, lumped element filter model of the switches was synthesized and its equivalent distributed circuit was developed. The size of the developed 118 GHz quasi-MMIC SPDT switch circuit is 6×2.5×0.1 mm3. For the packaged SPDT switch module, insertion loss (IL) introduced by mounting deviation of the waveguide microstrip transitions and the bonded ribbons is discussed. In the frequency range 110~120 GHz, the IL of the switch modules is less than 3.0 dB and typical value is 2.6 dB, and their isolation is higher than 22 dB. Response time, switch on time, switch off time and recovery time of the switches are lower than 18 ns, 20 ns, 10 ns and 18 ns, respectively. The 118 GHz switches can be widely used in transceiver systems.
keywords:SPDT switch, PIN diode, Insertion loss, Isolation
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