Design of spiral antenna using a Vivaldi-shaped balun

被引：1
作者：
Yoo, Sungjun [1 ]
Byun, Gangil [2 ]
Lee, Chiho [3 ]
Choo, Hosung [1 ]
机构：
[1] Hongik Univ, Sch Elect & Elect Engn, 94 Wausan Ro, Seoul 04066, South Korea
[2] Ulsan Natl Inst Sci & Technol, Sch Elect & Comp Engn ECE, Ulsan, South Korea
[3] Agcy Def Dev, R&D Inst 2, Directorate 2, Daejeon, South Korea
来源：
ELECTROMAGNETICS | 2019年 / 39卷 / 04期
关键词：
Spiral antennas; Vivaldi-shaped balun; Hybrid antenna;
D O I：
10.1080/02726343.2019.1595376
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：
This paper proposes a design of a spiral antenna using a Vivaldi-shaped balun for broadband matching characteristic with high tolerance to fabrication error and low geometrical complexity. The proposed antenna consists of spiral arms, a Vivaldi-shaped balun, and a ground with a cavity-backed structure. The Vivaldi-shaped balun is connected to the spiral two arms to obtain broad matching characteristics, and the cavity-backed structure is employed to achieve a high directivity. To verify proposed antenna performance, such as reflection coefficients, bore-sight gains, and radiation patterns, the antenna is measured in a full anechoic chamber. The results confirm that the proposed antenna is suitable for broadband spiral antennas with high tolerance to fabrication error and low design complexity.
引用
收藏
页码：217 / 226
页数：10
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