A Dual-Band Circularly Polarized Complementary Antenna

被引：45
|
作者：
Liang, Weilong [1 ]
Jiao, Yong-Chang [1 ]
Luan, Yuchen [2 ]
Tian, Chao [1 ]
机构：
[1] Xidian Univ, Natl Lab Sci & Technol Antennas & Microwaves, Xian 710071, Peoples R China
[2] Chinese Acad Sci, Inst Elect, Res Lab 1, Beijing 100190, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷
基金：
中国国家自然科学基金;
关键词：
Circularly polarized; complementary antenna; dual-band;
D O I：
10.1109/LAWP.2015.2392787
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 dual-band circularly polarized complementary antenna loaded with adjusting stubs is presented. The antenna consists of a semi-circle shaped printed monopole fed by a 50-Omega microstrip and the complementary metal structure part connected to the ground plane. Due to the complement structure, this antenna can work in dual-band linearly. To achieve dual-band circular polarization, rectangular and L-shaped adjusting stubs are added. By adjusting the parasitic elements appropriately, the conventional complementary antenna can be converted into a dual band circularly polarized antenna. The antenna impedance bandwidths are 400 MHz centered at 2.5 GHz and 2000 MHz centered at 5.8 GHz. The 3-dB axial ratio (AR) bandwidths are 40 MHz centered at 2.41 GHz and 640 MHz centered at 5.38 GHz. The measured results agree well with the simulated results.
引用
收藏
页码：1153 / 1156
页数：4
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