最佳激励线天线瞬态辐射特性

The Transient Radiation Properties of Optimum Excitation Wire Antennas

本文讨论单振子及耦合振子,在宽带信号激励状态下的瞬态辐射特性,分析了为在远区某点得到最大辐射场强,天线上的最佳电压分布.理论上导出了天线的辐射电阻、方向系数、能量因子及最大场强的表达式.并对1/6中心波长的单振子及耦合振子,进行了精确的数据计算,给出了相应的理论曲线.

In this paper the authors discuss the transient radiation propertiesof single dipole as well as coupled dipole,which is excited by the wide-band signal.The optimum voltage distribution at the antennas,for thetake of getting the maximum radiation field at far region,has been ana-lysed.The expressions of radiation resistance,directivity,energy fac-tor and maximum field strength of the antenna are presented.With theaid of these formulas,accurate numerical calculation for single dipole andcoupled dipole of 1/6 centre wavelength,and whereby the correspon-ding theoretical curves are given.