圆形波导中线天线的辐射和互阻抗

Radiation and Mutual Impedance of Linear Antennas in a Circular Waveguide

本文采用并矢格林函数,场量变换和反应原理讨论了圆形波导中线天线的辐射和互耦合,给出了场强和互阻抗的普遍公式。波导是半无限长的,端面反射系数为Γ.天线的长度、馈电点和它们在波导中的位置都是任意的。作为例子,我们给出了四种特殊情况下的互阻抗公式,并进行了讨论。

The radiation and coupling of linear antennas in a circular waveguide are discussed by means of dyadic Green's function, field transformation and reaction principle. The general formulas of electric intensity and mutual impedance are given. The waveguide is semi-infinite. The reflection cofficient at the terminal is Γ. Lengths, feeding points, and orientations of antennas in the waveguide are all arbitrary. As examples, expressions of mutual impedance for four specific cases are given and discussed.