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

页码：201 / 207

页数：7

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