摘要
由任意激励的电流分布,导出了对称天线在远处辐射场的普遍公式。并由远处辐射场的公式,求得在任意激励下的天线的方向性图函数。最后由任意激励取一特殊情况,即采用正弦电流激励,所导出的结果与用经典方法所得到的结果一致。
This paper derives the general formula for the distant radiative fields of the symmetri c antenna from arbitrary distribution of current. According to this formula, the function of direction pattern may be obtained under arbitrary excitation. When a special case-sinusoidal exitation of current-is taken as an arbitrary case, the results are concordant with those derived from classical method.
关键词
辐射场
方向图
对称天线
激励
excitation
radiative fields
direction pattern
