Phase-shifter-less Vortex Electromagnetic Wave Generation Technology with Tunable Topological Charge/Steering Angle under Random Initial Phase Condition of Phase-locked Source

Authors

  • Yuliang Zhou School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Kaiyuan Yao School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Xiaona Li School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Yong Mao Huang School of Electrical and Electronic Information Xihua University, Chengdu, 610097, China
  • Haiyan Jin School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China

DOI:

https://doi.org/10.13052/2023.ACES.J.380210

Keywords:

OAM (orbital angular momentum) wave, phase-shifter-less, random initial phase, tunable steering angle, tunable topological charge

Abstract

This paper demonstrates how to implement a vortex electromagnetic wave generation system with beam steering using only delay lines as phase-shifting elements. The system is based on uniform circular array and phased array technology. A detailed theoretical derivation is presented, which yields an input frequency matrix corresponding to each target case. Furthermore, considering the random initial phase problem of the actual phase-locked source, the above scheme is further improved in this paper. By cleverly setting the circuit structure, the influence of the initial phase inconsistency on the phase control system is filtered out. The performance is verified by analytical calculations and full-wave electromagnetic simulations, which are in good agreement with the proposed theory. The scheme proposed in this paper can completely get rid of the phase shifter and realize the free adjustment of the topological charge number/beam steering angle. The adjustment accuracy depends on the tuning accuracy of the phase-locked source, which can achieved an accuracy over 1Hz at a cost of less than six dollars, which makes it an interesting and flexible low-cost vortex electromagnetic wave generation scheme.

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Author Biographies

Yuliang Zhou, School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China

Yuliang Zhou received a B.S. degree in Applied Physics and the Ph.D. degree in Communication and Information Systems from the University of Electronic Science and Technology of China, Chengdu, China, in 2012 and 2020, respectively. Now he is a Post-Doctoral Researcher with the School of Aeronautics and Astronautics, University of Electronic Science and Technology of China.

From 2017 to 2018, he was with the Microwave Laboratory, University of Pavia, Pavia, Italy. His current research interests include substrate integrated circuits, leaky-wave antennas, and systems for wireless communication.

Kaiyuan Yao, School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China

Kaiyuan Yao was born in Dengzhou, Henan, China in 2000 and obtained the degree certificate of Communication Engineering from Southwest Minzu University in 2021. He is currently working toward a master’s degree in Traffic and Transportation from the University of Electronic Science and Technology of China, Chengdu, China. His research interests include antennas, and radio frequency circuits.

Xiaona Li, School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China

Xiaona Li was born in Xinzhou, Shanxi, China, in 1999. She is currently working toward a master’s degree in Electronic Information from the University of Electronic Science and Technology of China, Chengdu, China. Her research interests include antennas, and radio frequency circuits.

Yong Mao Huang, School of Electrical and Electronic Information Xihua University, Chengdu, 610097, China

Yong M. Huang Yong Mao Huang received the B.S. degree in Communication Engineering and the Ph.D. degree in Communication and Information Systems from the University of Electronic Science and Technology of China, Chengdu, China, in 2010 and 2017, respectively.

From 2014 to 2015, he was with the Department of Electrical Engineering, University of South Carolina, Columbia, SC, USA. He is currently an Assistant Professor with the School of Electrical Engineering and Electronic Information, Xihua University, Chengdu. He has authored or coauthored over 40 refereed articles. His current research interests include RF/microwave/millimeter-wave circuits and systems for wireless communication, radar and sensing applications, substrate integrated circuits, and reconfigurable components.

Haiyan Jin, School of Aeronautics and Astronautics University of Electronic Science and Technology of China, Chengdu, 611731, China

Haiyan Jin received a B.S. degree in Electronic Information Technology and M.S. and Ph.D. degrees in Electrical Engineering from the University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2001, 2006, and 2010, respectively.

From 2013 to 2014, he was a Post-Doctoral Researcher with the Poly-Grames Research Center, École Polytechnique de Montreal, University of Montreal, Montreal, QC, Canada, where he focused on beam forming antennas. Since 2010, he has been with the School of Information and Communication Engineering, UESTC, where he is currently an Associate Professor. He has authored or coauthored over 50 publications in referred journals and international conferences/symposia. His current research interests include antenna array designs and substrate integrated techniques for microwave and millimeterwave communication systems.

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Published

2023-07-06

How to Cite

[1]
Y. . Zhou, K. . Yao, X. . Li, Y. M. . Huang, and H. . Jin, “Phase-shifter-less Vortex Electromagnetic Wave Generation Technology with Tunable Topological Charge/Steering Angle under Random Initial Phase Condition of Phase-locked Source”, ACES Journal, vol. 38, no. 2, pp. 154–161, Jul. 2023.

Issue

2023: Vol 38 Iss 2

Section

Articles

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