摘要
提出一种基于商业软件HFSS仿真得到的开缝波导散射参数来提取辐射缝隙自导纳和有源导纳的方法。根据传输线理论,给出了通过散射参数计算孤立缝隙自导纳的公式,同时给出了考虑互耦的有源导纳方程,利用牛顿迭代法求解此方程得到裂缝的有源导纳值。该方法非常适合于波导天线阵的设计,有效地提高了天线阵的设计效率。
A method of extracting waveguide slot admittance based on the simulation results obtained using the commercial software HFSS is presented in this paper. The formula of calculating self-admittance of a single slot in waveguide is derived from transmission line theory, and that of calculating active admittance of a slot in array is given also. With the Newton iterative method used, the active admittance of a slot is found. By using the proposed method, a waveguide slot antenna array can be designed easily and economically.
出处
《雷达科学与技术》
2006年第2期121-124,128,共5页
Radar Science and Technology
基金
国防预研项目
关键词
波导
波导天线
导纳
牛顿迭代法
waveguide
waveguide antenna
admittance
Newton iterative method
