AWE技术加速计算圆环天线的宽带响应  

A Fast Calculating Method for the Cirque Antenna Broad Band ResponsesBased on Asymptotic Wave Evaluation Technique

作　　者：李成[1] 曹毅[1] 童创明[1] 王光明[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《空军工程大学学报（自然科学版）》2003年第2期31-33,共3页Journal of Air Force Engineering University(Natural Science Edition)

摘　　要：将函数有理逼近方法运用到电磁散射领域中,基于矩量法(MOM)并结合渐近波形估计(AWE)技术快速预测圆环天线的宽带响应。首先由MOM求得给定频率下的电流分布,然后利用AWE技术外推,从而快速预测出任意频率下的电流分布,最后计算出圆环天线的宽带响应。结果表明AWE技术不但能准确地逼近MOM的精确数值解,还可几倍甚至几十倍地提高计算速度,大大地节约CPU时间。The method of moments (MOM) and the asymptotic waveform evaluation (AWE) technique are adopted to make quick prediction of the broadband responses of the cirque antenna in this paper. The main steps are as follows: first get the current distribution over a given frequency with MOM, then adopt AWE technique to achieve the current distribution over a random band, and finally calculate the broadband responses of the cirque antenna. The results indicate that the AWE technique not only can well approximate the exact numerical value solution of MOM, but also can improve the velocity of calculation by several times which saves the calculation time of CPU.

关 键 词：有理逼近 矩量法 渐近波形估计技术 宽带响应 

分 类 号：TN011[电子电信—物理电子学]