【摘要】 首先用差分方法求解了偶极天线上的静态电容分布 ,并分析了分布电容与天线结构参数之间的关系 .然后用分布电容构造了可用于分析时域特性的偶极天线的等效电路 ,给出了该电路的时域求解方法 .通过这一方法 ,可以求解任何脉冲源馈入偶极天线输入端时 ,天线上任意点、任意时刻的电压、电流值 ,从而可以分析脉冲电压、电流沿天线的传播特性 ,解释脉冲电压、电流传播过程中的各种现象 .更多还原

【Abstract】 The distributed static capacitance of the dipole antenna was solved by finite difference method. The influences of the antenna configuration coefficients on the distributed capacitance were analyzed. An equivalent circuit for dipole antennas, which can be solved in time domain, was put forward by the distributed static capacitance and the inductance. A corresponding time domain approach for solving this circuit was proposed. By these equivalent circuit and the approach, the values of voltage and current at any point of the antenna and at any time can be solved, no matter what pulse source is fed to the antenna. Therefore, the propagating properties of the pulse voltage and current along the antenna can be analyzed, and the phenomena occurring in the propagating procedure can be explained.更多还原