Design of a Miniatured, Electromagnetic Quasi-Yagi Antenna with Circularly Polarized Characteristics

被引：0
|
作者：
Zhang, YunQi [1 ]
Liu, LiFang [1 ]
Sun, Zhao [2 ]
Li, XuPing [1 ]
Che, JunLing [3 ]
Li, HaoYu [1 ]
机构：
[1] Xian Univ Posts & Telecommun, Sch Elect Engn, Xian 710121, Peoples R China
[2] China Acad Space Technol, Xian Branch, Xian 710100, Peoples R China
[3] Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China
来源：
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL | 2023年 / 38卷 / 03期
关键词：
circularly polarized; endfire; folded dipoles; quasi-Yagi; RFID; ARRAY ANTENNA; BAND;
D O I：
10.13052/2023.ACES.J.380306
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 low-profile circularly polarized (CP) quasi-Yagi antenna with a wide 3-dB axial ratio (AR) bandwidth is proposed, which generates the endfire beam by combining magnetic microstrip cavity and folded electric dipoles with a 90ffi phase difference. The proposed antenna includes two shorting pins, which are employed to attain wider impedance bandwidth. Then, a phase delay line is added to connects two pairs of folded dipoles and a magnetic microstrip cavity to realize righthanded circularly polarized (RHCP). After optimization, a prototype with an overall size of 1:17 Chi 0:91 Chi 0:0387 lambda(3)(0) is designed. Simulated results demonstrate that the final model has 18:1% (5.01-6.01 GHz) 3dB AR bandwidth and 10 dB impedance bandwidth of 5:2%(5:67 5:97 GHz), respectively. In addition, experimental results demonstrate that the designed antenna is very applicable to the RFID system.
引用
收藏
页码：201 / 207
页数：7
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