AWE方法分析近地偶极天线

Analyzing Near-ground Dipole Antenna by Using AWE

针对傅里叶变换域内Green函数的特点,通过变量替换的方法,并借助外推算法,完成对阻抗矩阵及其阻抗矩阵的导数的计算,实现了媒质分层条件下的渐近波形估计(AWE)算法。数值试验结果表明,在考虑的整个频率范围内,适当选择几个频点,采用AWE方法可以快速地获得天线的宽带特性。

In consideration of the characteristics of Green function in Fourier inversion domain,calculation is made on the impedence matrix and its derivative by using the methods of variable substitution and extrapolation.The algorithm of asymptotic waveform evaluation (AWE) is implemented in layered media. The result of numerical experiment shows that in the overall frequency range,proper frequency points shall be selected,wide-band characters can be rapidly achieved for the antenna with AWE.