Using end reflections to improve the pulse radiation efficiency of bow-tie antenna

被引：0
|
作者：
Wang, Jian [1 ]
Su, Yi [1 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2013年 / 10卷 / 08期
关键词：
bow-tie antenna; radiation efficiency; pulse; ground penetrating radar (GPR); ultra wide band (UWB); OPTIMIZATION;
D O I：
10.1587/elex.10.20130125
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Bow-tie antenna is widely used for pulse radiation, but the radiation efficiency is less than 30%. In this letter, a novel method is presented to improve the efficiency by exploiting the energy in end reflections, which are thought to be harmful and usually suppressed in the reported literatures. When the exciting pulse is bipolar and monocycle, it is indicated that, the end reflection can be used for producing a pulse with increased peak value by optimizing the antenna length. The simulation results show that the pulse radiation efficiency can be increased 100% with the presented method.
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收藏
页数：7
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