Simulation of Two Compact Antipodal Vivaldi Antennas With Radiation Characteristics Enhancement

被引：0
|
作者：
Ying, Qiancheng [1 ]
Dou, Wenbin [1 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
来源：
2013 PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP), VOLS 1 AND 2 | 2013年
关键词：
TAPERED SLOT ANTENNA; DESIGN;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, two compact antipodal Vivaldi antennas (AVA) with improved Radiation Characteristics are presented. U-typed tapered slot edge (U-TSE) AVA and comb-shaped AVA with U-TSE are simulated and optimized. The -10-dB reflection coefficient bandwidth of comb-shaped AVA spans from 2.3 GHz to 18 GHz (7.83:1) and covers 15.7 GHz, while the bandwidth of conventional AVA which has the same dimensions spans from 3.3 GHz to 18 GHz (5.45:1) and covers 14.7 GHz. The U-TSE structure has the capacity to extend the low-end bandwidth limitation and improve the radiation characteristics in the lower frequencies. Compared with the conventional AVA, this modification can miniaturize the electrical size of the AVA antenna about 30%. The results regarding return loss, far field pattern, antenna gain and axial ratio are illustrated.
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页数：4
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