摘要
针对耦合波导缝隙馈电时波导内电磁场复杂且不利于工程应用的问题,提出一种耦合波导缝隙有源阻抗计算方法.根据耦合波导端口处S矩阵与端口处输入阻抗矩阵的关系建立关于耦合波导缝隙有源阻抗方程,且采用牛顿法求解此非线性高阶分式方程,得到计及缝隙间互耦的耦合波导缝隙有源阻抗值.通过提取HFSS软件中耦合缝隙馈电的裂缝天线S矩阵进行仿真计算,结果表明该计算耦合缝隙有源阻抗的方法是有效的且适合大型裂缝天线耦合裂缝设计.
A method of coupling waveguide slot＇s active impedance calculation is presented due to the complicated electromagnetic field in waveguide and disadvantage in engineering application.The equation contained slot＇s active impedance is created according to the relation between the S matrix and the input impedance at the port of coupling waveguide.Newton method is applied to solve the higher order fractional equation to obtain the coupling slot＇s active impedance which takes mutual coupling between slots into account.Computer simulation results obtained by applying S matrix extracted from HFSS software in coupling slot＇s active impedance formula indicates that the method proposed in this paper is effective and suitable for coupling slot of large waveguide slots array antenna design.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2012年第4期852-855,共4页
Acta Electronica Sinica
关键词
耦合波导缝隙
有源阻抗
S矩阵
输入阻抗
coupling waveguide slot＇s active impedance
active impedance
S matrix
input impedance
