摘要
应用矩量法对轴向模螺旋天线进行了分析,得出了其电流分布和辐射方向图.在基本矩量法和小波分析的基础上,描述了小波矩量法的原理,指出了小波矩量法比基本矩量法在计算时间上的优势所在.应用离散小波矩量法对基本矩量法得到的稠密阻抗矩阵稀疏化,从而求解出小波矩量法下的轴向模螺旋天线的电流分布.比较两种方法得出的结果,证明了在保证精度的情况下应用小波矩量法能够大大减少计算时间.
The axially arrayed helix antenna was analyzed with moment method and its current distribution and radiation pattern were studied.The principle of wavelet-moment method was described on the basis of moment method and wavelet analysis.The wavelet-moment method＇s advantage in computing time over moment method was discussed.The dense impedance matrix was transferred into a rarefied one with discrete wavelet transform method,and the current distribution of the antenna was calculated.It was proved that the application of wavelet-moment method could remarkably reduce the computing time and ensure the accuracy of the calculation results.
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2011年第4期507-511,共5页
Journal of North University of China(Natural Science Edition)
基金
山西省自然科学基金资助项目(2008011027-4)
关键词
小波矩量法
轴向模螺旋
稀疏矩阵
电流分布
wavelet-moment method
axially helix antenna
rarefied matrix
current distribution
