A Topological Charge Continuously Tunable Orbital Angular Momentum (OAM) Electromagnetic Wave Generation Method Based on Fixed-length Delay Line Mixing Circuit

Authors

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

DOI:

https://doi.org/10.13052/2022.ACES.J.371007

Keywords:

beam steering, continuous topological charge, delay line, vortex electromagnetic waves

Abstract

To overcome the drawback of complex structure and high cost attributed from the utilization of phase shifters to generate OAM in the conventional schemes, this paper proposes a new method for generating OAM based on a fixed delay line. By deriving the proposed system with fixed delay line theoretically, the relationship between the frequency of the input signal on the delay line and the topological charge of the OAM is obtained, and the topological charge of the generated OAM can be controlled by controlling the frequency. Furthermore, this paper proposes a vortex beam pointing control method based on phased array scanning, so as to realize the beam steering of OAM. It is then verified by using electromagnetic simulation, and the simulation results show that the proposed method is feasible. The proposed method not only has the advantages of simple structure and low cost, but also can generate OAM with continuously adjustable topological charge by controlling the frequency, which has the functions of topological charge reconstruction and dynamic adjustment.

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Author Biographies

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

Yuliang Zhou received a B.S. degree in Applied Physics and a 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.

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

Xiaona Lia 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, radio frequency circuits.

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

Kaiyuan Yao was born in Dengzhou, Henan, China in 2000 and obtained a degree certificate in 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.

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

Yong Mao Huang received a B.S. degree in Communication Engineering and a 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 peer-reviewed 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, China.

Haiyan Jin received a B.S. degree in Electronic Information Technology and an 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 peer-reviewed journals and international conferences/symposia. His current research interests include the antenna array designs and substrate integrated techniques for microwave and millimeterwave communication systems.

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Published

2022-10-31

How to Cite

[1]
Y. . Zhou, X. . Li, K. . Yao, Y. M. . Huang, and H. . Jin, “A Topological Charge Continuously Tunable Orbital Angular Momentum (OAM) Electromagnetic Wave Generation Method Based on Fixed-length Delay Line Mixing Circuit”, ACES Journal, vol. 37, no. 10, pp. 1071–1076, Oct. 2022.