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

作者

  • Yun Qi Zhang School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an 710121, China
  • Li Fang Liu School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an 710121, China
  • Zhao Sun Xi’ an Branch China Academy of Space Technology, Xi’an 710121, China
  • Xu Ping Li School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an 710121, China
  • Jun Ling Che School of Science Xi’an University of Posts & Telecommunications, Xi’an 710121, China
  • Hao Yu Li School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an 710121, China

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https://doi.org/10.13052/2023.ACES.J.380306

关键词:

circularly polarized, endfire, folded dipoles, quasi-Yagi, RFID

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 90∘ 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 1.17×0.91× 0.0387λ30 is designed. Simulated results demonstrate that the final model has 18.1% (5.01-6.01 GHz) 3-dB AR bandwidth and −10dB impedance bandwidth of 5.2%(5.67−5.97GHz), respectively. In addition, experimental results demonstrate that the designed antenna is very applicable to the RFID system.

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Yun Qi Zhang was born in Baglow Inner Mongolia, China in 1986. He received the PhD. degree from Xidjag, University, Xi’an, China in 2015. He is currently working in the Xi’an University of Posts & Telecommunications. His research interests include GPS antenna, CP antenna, omnidirectional antenna and antenna array designs.

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Li Fang Liu was born in Gansu, China, in 1994. She received the BEng degree from Lanzhou University of Technology, Gansu, China in 2017. Currently, she is pursuing an MS degree in Electronic Information from Xi’an University of Posts & Telecommunications. Her current interests include electromagnetic fields and microwave technology.

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Zhao Sun was born in Shanxi, China, in 1988. She is currently working in Xi’an Branch of China Academy of Space Technology. Her current interests include low-orbit constellation and data link research.

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Xu Ping Li was born in Xi’an, Shanxi, China in 1981. He received the PhD. degree in Electromagnetic Field and Microwave from Xi’an University, Xi’an, China in 2015. In January 2019, he was transferred to Xi’an University of Posts and Telecommunications as the leader of the phased array antenna technology research team. The principal focus of his research program is the development of phased array antennas.

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Jun Ling Che is received the PhD degree in Electronic Science and Technology from Xi’an Jizgtong University, Xi’an, China in 2017. He is currently working in the Xi’an University of Posts & Telecommunications.

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Hao Yu Li was born in Anhui, China, in 1998. He received the BEng degree from Chyzhgu. University, Anhui, China in 2019. Currently, he is pursuing an MS degree in Electronic Information from Xi’an University of Posts & Telecommunications. His current interests include electromagnetic fields and microwave technology.

参考

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已出版

2023-03-31

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[1]
Y. Q. . Zhang, L. F. . Liu, Z. . Sun, X. P. . Li, J. L. . Che, 和 H. Y. . Li, 《Design of a Miniatured, Electromagnetic Quasi-Yagi Antenna with Circularly Polarized Characteristics》, ACES Journal, 卷 38, 期 03, 页 201–207, 3月 2023.

期

2023: Vol 38 Iss 3

栏目

General Submission

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