A Low-Profile Two-arm Archimedean Spiral Antenna Radiating a Circularly Polarized Normal Beam or Conical Beam

被引：0
|
作者：
Wen, Bin [1 ]
Yan, Ze-Hong [1 ]
Chen, Ke [1 ]
Shi, Yan [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antenna & Microwave Technol, Xian 710071, Shaanxi Provinc, Peoples R China
来源：
2013 INTERNATIONAL WORKSHOP ON MICROWAVE AND MILLIMETER WAVE CIRCUITS AND SYSTEM TECHNOLOGY (MMWCST) | 2013年
关键词：
Circularly polarized; conical beam; low-profile antenna; normal beam; spiral antenna;
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：
A two-arm Archimedean spiral antenna (TAS) is proposed to provide a circularly polarized (CP) normal beam or conical beam. The antenna is fed by coaxial lines without a balun circuit. When it is excited out of phase, a CP normal beam which is almost symmetric with respect to the antenna axis is produced. While excited in phase, it radiates a CP conical beam. The antenna height is chosen to be extremely small to realize a low-profile antenna. The simulated results show that the antenna has a good VSWR and a good axial ratio over the frequency range of 1.8GHz to 2.1GHz.
引用
收藏
页码：62 / 65
页数：4
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