摘要
利用二项式定理,对电偶极子空间解析场多极展开,分析了远场与二项式近似场解与实际电场的差别,表明电偶极中心距离、极轴角度等因素影响着误差程度,距电偶极中心约十倍距离时,近似场解与实际场强相差很小,并且误差程度也随极轴角度周期变化.
The field approximate degree between actual dipolar electric field and electric field caused by binomial theorem ex- pansion or far field formula is simulated, the results show that the approximate degree depend on the distance from the dipolar center and the dipolar angle, which is small when the distance ten times the dipolar length, and changes as the angle varies.
出处
《枣庄学院学报》
2013年第2期60-64,共5页
Journal of Zaozhuang University
基金
枣庄学院大学生研究训练(SRT)计划项目
枣庄学院2011年教学改革项目(YJG11007)
枣庄学院优质课程<电磁场与电磁波>(YYZ11005)资助项目
