二维时域电场积分方程新平均稳定法  

A Novel Average Technique for the Stability of Two-demension TDEFIE

作　　者：张诚[1] 罗伟[1] 吴先良[1] 

机构地区：[1]安徽大学电子科学与技术学院,安徽合肥230039

出　　处：《现代电子技术》2010年第4期174-176,186,共4页Modern Electronics Technique

摘　　要：对二维理想金属导体柱的时域电场积分方程(TDEFIE)后期振荡问题提出了一种新的时间平均方法,此方法用前一时刻和后一时刻的值来修正当前时刻的电流值,消除了振荡,而且相对以往的平均方法提高了MOT算法的稳定性,对精度的影响很小。这里采用电场积分方程(EFIE)MOT算法的隐式格式(Implicit),在TM,TE高斯平面波激励情况下分别计算了两个例子:圆柱和方柱。又采用一种新的时间基函数BLIFs来结合新的时间平均法,取得了很好的效果。经过Mat-lab软件的数值分析,可以看出此时间平均法更加稳定和精确。A new time average method using time domain electric integral equation, which adds the front and back of the current electricity to eliminate oscillation, it is presented to calculate two - demension conducting cylinder for improving the stability more than other average approaches and the precision influenced by the method can be almost ignored. An implicit method using EFIE is adopted to calculate two examples apiece inspired by TM and TE gauss plane wave：circle cylinder and square cylinder. Except that, a new temporal basis funcion BLIFs used in the novel average technique acquire better impression. The results of Matlab simulation prove the stability and precision of the approach.

关 键 词：时域电场积分方程 时间平均法 隐式算法 时间步进算法 

分 类 号：TN820.1[电子电信—信息与通信工程]