An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

被引：3

作者：

Huang, Denghui ^{[1
]}

Yang, Hu ^{[1
]}

Wu, Yuqing ^{[2
]}

Zhao, Fei ^{[3
]}

机构：

[1] Natl Univ Def Technol, Coll Elect Sci & Technol, Changsha 410073, Hunan, Peoples R China

[2] Univ Cambridge, Cavendish Lab, London, England

[3] Southwest Elect & Telecommun Technol Res Inst, Chengdu 610041, Sichuan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2017年 / 2017卷

关键词：

Slot antennas - Soldering - Feeding - Microwave antennas;

D O I：

10.1155/2017/3281095

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：

An X-band dual-polarized Vivaldi antenna with high isolation is proposed. The procedure of this antenna design includes the conventional Vivaldi antenna with regular slot edge (RSE), the dual-polarized Vivaldi antenna with two Vivaldi antennas which have different feeding point positions in a cross-shaped form, and the two Vivaldi antennas with a galvanic contact in soldering point. By applying the RSE, it reduced the dimensions of the Vivaldi antenna and improved its radiation performance. The modified antenna is fabricated and measured. The measured results show that S11 < -10 dB at the entire X-band for the two Vivaldi antennas. The isolation (S21) between the two feeding ports, which has been improved by applying the different feeding point positions and the galvanic contact in soldering point, is better than 34 dB at X-band. In addition, the cross-polarized discrimination is better than 21 dB for the two Vivaldi antennas, and the measured results also include the gain of two Vivaldi antennas.

引用

页数：9