宽频带平面天线的实验研究

An experimental study of the broadband planar antenna

该文研究了具有宽频带特性的口径耦合微带阵列天线，分析了天线各结构参数对阻抗特性的影响，并考虑到实现Ｃ波段卫星通讯天线的可能性，给出了这种微带天线单元及其２×２元阵的设计和实验结果．结果表明，该文所描述的这种结构形式的天线单元其驻波比小于２（ＶＳＷＲ＜２）的相对带宽大于３０％．

The aperture-coupled microstrip antenna with a large bandwidth is studied and the effectof the structural parameter on the impedance-frequency characteristics analysized.The possi-bility of realizing the C-band satellite communications antenna is considered.The design andexperimental results for the unit and the array antenna(2×2) are presented.From these re-sults,it is concluded that the antenna with this structure described in this paper has achievedmore than 30%the relative bandwidth for VSWR of less than 2.