Richmond法分析半波振子的电流分布与解析法对比，方向图，增益-Richmond half-wave dipole analysis of current distribution and the analytical method comparison, pattern, gain

波克林顿法分析半波振子的电流分布，方向图，增益大小，三维方向图-Analysis of Clinton' s half-wave wave oscillator current distribution, pattern, gain size, three-dimensional pattern

波克林顿法分析偶极子天线的频率阻抗特性，电阻随频率变化，电抗随频率变化-Clinton wave analysis frequency dipole antenna impedance, resistance changes with frequency, reactance varies with frequency