射频连接器与微带线组件焊接过渡段阻抗补偿研究  

Study of the Impedance Compensation of the Welding Transition Section of the RF Connector and Micro Strip Line

作　　者：宋凯旋 高锦春[1] 王紫任 谢刚[2] 李晓明[3] 石国超[3] SONG Kai-xuan;GAO Jin-chun;WANG Zi-ren;XIE Gang;LI Xiao-ming;SHI Guo-chao(School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang,Hebei 050081,China)

机构地区：[1]北京邮电大学电子工程学院,北京100876 [2]北京邮电大学信息与通信工程学院,北京100876 [3]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《电子学报》2019年第11期2241-2247,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.51877010);信息光子学与光通信国家重点实验室(北京邮电大学)开放基金(No.IPOC2018B005);北京邮电大学中央高校基本科研业务费专项资金资助(No.2019PTB-014)

摘　　要：射频连接器与微带线组件常用于通信系统电路中,而组件焊接过渡段的阻抗不连续会使电路中的信号损耗增大.针对该问题,本文对射频连接器与微带线组件焊接过渡段进行研究,基于传输线理论,建立焊接过渡段的等效电路模型.讨论了焊接过渡段特征阻抗不连续的原因,同时提出了补偿优化方案.此外,通过电磁场与电路的联合仿真,提取出补偿前后等效电路模型的电参数,从等效电路模型的角度分析了补偿方案对组件过渡段复杂电磁特性的影响.有限元仿真分析与实验测试结果显示,补偿后组件的性能显著提高,证明了补偿方案有效可行.The RF connectors and micro strip lines are commonly used in communication system circuits,and the characteristic impedance discontinuity caused by the welding transition section increases the signal loss in the circuit.In this paper,the welding transition section of the RF connector and micro strip line is studied.Based on the transmission line theory,the equivalent circuit model of the welding transition section is established.The reasons for the characteristic impedance discontinuity of the welding transition section are discussed,and the compensation schemes are proposed.In addition,the electrical parameters of the equivalent circuit model are extracted by the joint simulation of electromagnetic field and circuit.From the perspective of the equivalent circuit model,the influence of the compensation scheme on the complex electromagnetic characteristics of the solder transition section is analyzed.The finite element analysis and experimental results show that the matching and transmission performance of the compensated components is significantly improved,which proves that the compensation scheme is effective.

关 键 词：等效电路模型 焊接过渡段 阻抗不连续 补偿 

分 类 号：TN41[电子电信—微电子学与固体电子学]