Analysis and Design of Broadband OAM Array Antenna

作者

  • Yunqi Zhang School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Shiliu Zhao School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Xuping Li School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Leying Wang 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.380704

关键词:

Broadband, CAA, OAM, RAA, uniform circular array antenna

摘要

This paper presents a Uniform Circular Array (UCA) antenna of crossed-dipole that can excite vortex waves in a wide frequency range from 3.5 GHz to 8.4 GHz. In the design process, the theoretical derivation of the influence on the Orbital Angular Momentum (OAM) when the antenna elements are arrayed in Co-directional Antenna Array (CAA) and Rotational Antenna Array (RAA) is given respectively. The fixed mode of the dipoles CAA is achieved by feeding each element with equal amplitude and 90∘ phase difference produced by the broadband feeding network. Furthermore, the proposed broadband OAM array antenna has been fabricated and measured to verify the predicted properties. The vortex electromagnetic wave with +1 mode could be excited in the bandwidth of 82.35%. Simulated and measured results are in good agreement. The proposed OAM array antenna is simple in design principle, compact in structure and low in profile, making this array antenna an excellent candidate for broadband OAM communication systems.

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Yunqi Zhang was born in BaoTou, Inner Mongolia, China. He received the Master’s degree and the Ph.D. degree in micro-electronics from Xidian University in 2012 and 2015, respectively. He is currently working in the Xi’an University of Posts & Telecommunications. His research interests include CP antennas, OAM, omnidirectional antennas, and phase array antennas.

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Shiliu Zhao is with the School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an 710121, China. Her main research interests are array antennas and vortex electromagnetic waves.

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Xuping Li was born in Xi’an, Shanxi, China in 1981. He received the Ph.D. degree in electromagnetic fields and microwave technology from Xidian University, Xi’an, China, in 2015. His research interests are antenna theory and engineering.

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Leying Wang is with the School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an 710121, China. Her current research interests include underwater wireless optical communication and signal processing.

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已出版

2023-07-31

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[1]
Y. . Zhang, S. . Zhao, X. . Li, 和 L. . Wang, 《Analysis and Design of Broadband OAM Array Antenna》, ACES Journal, 卷 38, 期 07, 页 489–495, 7月 2023.

期

2023: Vol 38 Iss 7

栏目

General Submission

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