一种波导裂缝阵列天线设计方法  

A design method of slot arrays of waveguide

作　　者：陈晓鹏[1] 陈文俊[1] 石磊[1] 

机构地区：[1]中国船舶重工集团公司第七二四研究所,南京210003

出　　处：《雷达与对抗》2013年第4期39-42,共4页Radar & ECM

摘　　要：结合等效电路法和有源导纳法,将设计波导裂缝阵列天线的Elliott方程改写为两个方程组进行求解,利用归一化电导迭代求解两个方程组,得到裂缝参数,避免了直接求解二元非线性方程而产生的大量无用解。互耦系数g mn的计算采用Taylor级数展开式近似。用等效电路法与本文方法分别设计了64元驻波线阵,仿真结果表明,本文方法降到了天线副瓣。Combined with the equivalent circuit and active admittance methods, the Elliott equations for the design of slot arrays of the waveguide are transformed into a couple of equation sets, and the slot parameters are obtained by the iteration of equations utilizing the normalized conductance to avoid a large number of useless solutions from the nonlinear equation of two unknowns. Approximate formula of Taylor series is applied to compute the mutual couplings gmm Linear 64-slot arrays are designed respectively through the new method and the equivalent circuit method. The simulation results show that the side lobe levels in the pattern are optimized.

关 键 词：波导裂缝阵列 归一化电导 方程组 互耦 

分 类 号：TN820.15[电子电信—信息与通信工程]