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电子学报  2013 

精确稳定的时域积分方程方法在求解复杂线面结合问题中的应用

DOI: 10.3969/j.issn.0372-2112.2013.11.027, PP. 2285-2289

Keywords: 时间步进算法(MOT),时域线面结合积分方程(TDSWIE),天线

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Abstract:

本文采用了时间步进算法(MOT)求解时域线面结合积分方程(TDSWIE),以解决金属平台和复杂线天线结合这种组合目标问题.为了提高该算法的精度和数值稳定性,文中采用了精确计算阻抗矩阵元素值的方式.对单级子天线放置在金属球面以及螺旋天线放置在圆台形天线基座等进行数值仿真,获得了天线与基座结合处的瞬态电流值、天线的回波损耗(S11)、天线的输入导纳以及方向图等重要参数.数值结果验证了本文方法的有效性和精确性.

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