蝶形微带天线的全波分析与宽带设计

Full-wave analysis and broadband design of bow-tie microstrip antenna

介绍了蝶形微带贴片天线的一种全波分析方法 -矩量法 ,与多端网络法相比 ,其适用范围更广。然后介绍了展宽天线频带的一种设计方法。通过不对称馈电方式 ,激励起两个相近频率的模式 ,从而使微带天线驻波比带宽获得明显展宽。测试结果与计算结果相当吻合 。

A full wave method (MoM) is presented to analyze the bow tie microstrip antenna which has wider application than the multiport network method. Then a design of method for broadening bandwidth is developed. By using asymmetry microstrip feeding, two adjacent frequency modes are excited, which makes VSWR bandwidth be broadening significantly. The measured results are in good agreement with the calculated ones, which verifies the validity of this numerical analysis and design program.