【摘要】 常规vivaldi天线存在后向辐射大,主辐射方向增益低的缺点。通过优化常规vivaldi天线贴片形式的方法,改变天线表面的电流分布,得到其改进形式—兔耳形vivaldi天线。对改进型vivaldi天线的电性能进行了分析,设计并制作了一付工作在6~18 GHz的改进型vivaldi天线,与常规vivaldi天线相比,天线增益在整个频带内均有显著的提高。更多还原

【Abstract】 For great back-radiation and low gain in the main-direction of traditional vivaldi antenna,a modified form named as Rabbit-Ear antenna is proposed by changing the current distribution on the optimized regular vivaldi antenna patch.The antenna operating at the bandwidth of 6-18 GHz is designed and fabricated,and its electronical characters is analyzed.Comparsing with traditional vivaldi antenna,the gain of the modified antenna is improved at the whole bandwidth.更多还原