一种宽带微带线-悬置微带线过渡电路设计  

Design of broadband microstrip line-suspended microstrip line transition circuit

作　　者：牛赫一 吴景峰[1] 王志强[1] Niu Heyi;Wu Jingfeng;Wang Zhiqiang(The 13th Research Institute,CETC,Shijiazhuang 050051,China)

机构地区：[1]中国电子科技集团公司第13研究所

出　　处：《电子测量技术》2019年第22期23-26,共4页Electronic Measurement Technology

摘　　要：基于悬置微带电路的应用需求,设计了一种新型的宽频带微带线-悬置微带线过渡电路,过渡结构采用"V型开槽地"结构实现微带线到悬置微带线电场方向的过渡转换,并使用渐变信号线进行阻抗匹配以拓展带宽。最终的仿真结果表明:该结构在0~40 GHz的频带范围内回波损耗优于15 dB,插入损耗小于0.165 dB,并且电路性能对电路尺寸的敏感性较低。该设计将具有超低损耗的悬置线与最常用的微带线电路相结合,并且具有宽频带、插损低、易于加工、结构紧凑等优势,改善了悬置微带电路的应用范围,可以更好地同其它电路或系统进行综合应用。Based on the application requirement of suspended microstrip circuit, a new type of broadband microstrip line-suspended microstrip line transition circuit is designed in this paper. The transition structure uses "V-groove" structure to realize the transition from microstrip line to suspended microstrip line in the direction of electric field, and uses gradient signal line to match impedance to expand the bandwidth. The final simulation results show that the echo loss of the structure is better than 15 dB in the frequency range of 0~40 GHz, the insertion loss is less than 0.165 dB, and the sensitivity of circuit performance to circuit size is low. The design combines the ultra-low loss suspension line with the most commonly used microstrip line circuit, and has the advantages of broadband, low insertion loss, easy processing and compact structure. It improves the application scope of the suspension microstrip circuit and can be better integrated with other circuits or systems.

关 键 词：悬置微带线 过渡电路 阻抗匹配 宽频带 

分 类 号：TM134[电气工程—电工理论与新技术]