小型波导缝隙天线阵的改进设计方法研究  

Improvement of design method for small rectangular waveguide slot arrays

作　　者：赵怀成[1] 吴文[1] 汤一铭[1] 余彦民[1] 

机构地区：[1]南京理工大学电光学院,江苏南京210094

出　　处：《电波科学学报》2007年第6期1025-1028,共4页Chinese Journal of Radio Science

摘　　要：利用传输线理论构造负载阻抗的近似计算公式,采用数值逼近法直接计算阵列中的缝隙归一化导纳,从而可以在Elliott波导缝隙天线阵设计过程中避免使用感应电动势法和矩量法,进而可以提高设计速度。最后采用该方法设计了工作频率为9.375GHz的缝隙阵结构参数,仿真结果表明改进设计方法比较有效。In this paper, an approximate expression was presented to compute the load impedance base on the theory of transmission line, and the numerical approximation method was employed to obtain the normalized admittance of the waveguide slot in array. This made it possible to avoid using MoM （method of moments） and MIEF （method of inductance electromotive force） in Robert. S. Elliott＇s design method for waveguide slot arrays. Thus the design efficiency is highly improved. The improved method is used to design a small slot arrays operating at 9. 375 GHz, which is proved to be useful by good simulation results.

关 键 词：缝隙阻抗 归一化导纳 互耦阻抗 矩形波导 

分 类 号：TN823.24[电子电信—信息与通信工程]