A Modified UWB Antipodal Vivaldi Antenna with Improved Radiation Characteristics

被引：0
|
作者：
Kang, Xiaole [1 ]
Li, Zengrui [1 ]
机构：
[1] Commun Univ China, Informat Engn Sch, Beijing, Peoples R China
来源：
2015 IEEE 6TH INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION, AND EMC TECHNOLOGIES (MAPE) | 2015年
基金：
中国国家自然科学基金;
关键词：
antipodal Vivaldi antenna; elliptical slot edge (ESE) structure; ultra-wideband (UWE);
D O I：
暂无
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：
In this paper, a modified antipodal Vivaldi antenna is presented for UWB applications. To extend the low-end bandwidth limitation and improve the radiation characteristics in the lower frequencies, a novel elliptical slot edge (ESE) structure is employed. The addition of ESE structure helps the antenna lower the low-end operating frequency by 570 MHz with the dimension unaltered. In addition, a pair of planar directors is used to improve the value of gains at high frequency bands. The proposed antenna achieves a-10 dB vertical bar S-11 vertical bar with bandwidth of 1.69-11 GHz and demonstrates good unidirectional radiation patterns over the operating frequency band with peak gain values in the range of 4.13-11.48 dBi.
引用
收藏
页码：120 / 122
页数：3
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