摘要
介绍了一种宽频带的槽线天线即Vivaldi天线,论述了它的工作机理,它的性能与结构参数的关系,同时介绍了它与不同的馈电方式结合形成具有各自特点的不同形式的Vivaldi天线,用时域有限差分方法分析了一种Vivaldi天线的匹配特性,验证了它的宽带特性,最后阐述了Vivaldi天线在宽带测量系统中的应用。
A kind of wideband slot line antenna, namely the Vivaldi antenna, is introduced in this paper. Its working mechanism and the relationship between its performance characters and its structure parameters are explained. We also lay out some specific Vivaldi antennas with different feeding geometry. A Vivaldi antenna with general form is analyzed by FDTD method, and its matching character is studied and the results are presented in this paper to reveal its wideband perfonnance. Finally, we show some applications of Vivaldi antennas in the wideband measurement systems.
出处
《宇航计测技术》
CSCD
2004年第3期20-23,共4页
Journal of Astronautic Metrology and Measurement
