High-Power Dual-Branch Helical Antenna

被引：26
|
作者：
Liang, Yuan [1 ]
Zhang, Jianqiong [1 ]
Liu, Qingxiang [1 ]
Li, Xiangqiang [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 03期
关键词：
Circular polarization; dual-branch; feed probe; gain; helical antenna; high power; MICROWAVES;
D O I：
10.1109/LAWP.2018.2796244
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：
A novel high-power axial-mode helical antenna has been developed. The antenna consists of two short helixes with the same polarization but a relative rotation angle. As the high-frequency current on the antenna is divided into two paths, its power capacity is much higher than conventional helical antenna. Some basic analysis and design of the dual-branch helical antenna are presented and a wideband, well-matched coaxial feeding for experiments has been carried out to get the frequency responses and far-field results. The results centered at 12.5 GHz indicate that the gain is 8.6 dB and the axial ratio is 2.2 dB, and it could handle a pulse power of 44.6 MW under vacuum condition.
引用
收藏
页码：472 / 475
页数：4
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