中央馈电细直天线辐射场的研究

Study on Radiation Field from a Thin,Linear,Center-Fed Antenna

通过理论推演给出了细直线型天线电磁辐射场的解析表达式,并给出了该天线辐射场的辐射平均角分布的解析表达式,对此结果数值模拟发现部分电动力学教材中所给的辐射平均角分布示意图有错误.

Analytical expressions of the radiation field from a thin, linear and center-fed antenna are given. It is found from the result of numerical simulation for the given analytical expression of the time-averaged power radiated per unit solid angle that the regrettable oversight in the sketch figures of angular distribution in some textbooks of electrodynamics occurs.