基于MRTD的天线电磁辐射分析

基于MRTD的天线电磁辐射分析

内容简介：系统地研究了时域多分辨（MRTD）算法,并利用该算法计算天线的电磁辐射,验证与其他算法比较下所具有的优越性,推导出采用具有紧支撑特性的Daubechies小波作为展开基的MRTD算法的计算公式,分析其色散特性和吸收边界条件,通过模型分析圆柱形单极天线的电磁辐射,仿真出该天线的一系列电参数值,经过优化可以得出比较理想的结果。结果表明MRTD具有良好的色散特性和精度,同时还具有计算速度快、存储空间少和内存使用量小等优点,有效地弥补了其他计算机电磁算法的不足。

Abstract：This paper researches the multi-resolution time domain(MRTD) algorithm in a systematic way,and uses this algorithm to calculate the antenna electromagnetic radiation,validates its superiorities compared with the other algorithms,educes the calculation formula of MRTD algorithm using the Daubechies-wavelet with compact support performance as the outspread basis,analyzes its dispersion characteristic and absorbing boundary conditions,analyzes the electromagnetic radiation of cylindrical monopole antenna through a model,simulates a series of electric parameter values of the antenna,which can educes the perfect result through the optimization.The results indicate that MRTD not only has the good dispersion characteristic and accuracy,but also has the advantages such as fast velocity,less memory space and internal storage usage and so on,which can effectively fetches up the lack of other computer electromagnetic algorithms.

作者：于少鹏, 高红友,

关键词：时域多分辨算法, 天线, 电磁辐射,