论文部分内容阅读
针对微带阵列天线实现圆极化时轴比窄的不足,引入了一种给微带单元连续旋转馈电的技术,并从圆极化天线的定义出发,采用一种浅显的表述对此技术如何可以提高轴比特性进行了理论分析,得出关于此种阵列结构的一些规则。最后,在2.49GHz工作频率上,对两种微带阵列结构的天线进行了仿真计算,结果表明了此种阵列天线比传统的阵列天线阻抗带宽增加2倍,轴比带宽增加了几乎3倍。
Aiming at the shortcoming of microstrip array antenna in realizing circular polarization, a technique of feeding the microstrip unit continuously and continuously is introduced. Based on the definition of circularly polarized antenna, a simple representation of this technique How to improve the axial ratio characteristics of a theoretical analysis, come to some rules on the structure of this array. Finally, two microstrip antenna arrays are simulated at 2.49 GHz operating frequency. The results show that the array antenna has two times more impedance bandwidth and nearly three times more bandwidth than the traditional array antenna.