一种基于开路对称耦合微带线的L形双频实阻抗匹配网络  

An L-shaped dual-band real impedance matching networkbased on open-circuit symmetrically coupled microstrip lines

作　　者：刘宝宏[1] 卫润田 涂振宇[1] LIU Baohong;WEI Runtian;TU Zhenyu(Jiangxi Province Key Laboratory of Water Information Cooperative Sensing and Intelligent Processing,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院江西省水信息协同感知与智能处理重点实验室,江西南昌330099

出　　处：《南昌工程学院学报》2022年第6期71-77,共7页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ190954);国家自然科学基金资助项目(61961025,62066030);江西省自然科学基金资助项目(20202BABL202001)。

摘　　要：提出了一种采用开路对称耦合微带线的L形双频实阻抗匹配网络。该匹配网络由开路对称耦合微带线和并联微带线构成,能够实现工作频率比率大范围变化和负载阻抗波动的阻抗匹配。给出了设计步骤并进行了数值仿真,仿真结果验证了设计方法的有效性。相对于已有的双频阻抗匹配网络,提出的开路对称耦合微带线双频实阻抗匹配网络具有尺寸小、易实现匹配等特点。An L-shaped dual-band matching network with symmetrically open circuit coupled microstrip line is presented in the paper.The L-shaped matching network is composed of open-circuit symmetrically coupled microstrip line and a shunt microstrip line,and matches with the load impedances in large fluctuations as well as a wide range of operating frequency ratio changes.The design consideration and numerical simulation are provided in details.The simulation results verify the availability of the proposed matching network.Compared with the published dual-band impedance matching networks,the proposed dual-band matching network is characteristic of smaller size.

关 键 词：开路对称耦合微带线 L形 双频匹配 小尺寸 

分 类 号：TN61[电子电信—电路与系统]