A Broadband Reflectarray Based on Vivaldi Antenna Elements

Authors

  • Fan Qin State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China
  • Lihong Li State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China
  • Yi Liu State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China
  • Hailin Zhang State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China

Keywords:

Broadband, high gain, reflectarray, Vivaldi antenna array

Abstract

In this paper, a novel broadband reflectarray (RA) is presented. For achieving broadband performance, the unit cell is realized using Vivaldi antenna element, where the feeding line acts as phase delay-line for adjusting the reflection phase. By simply changing the length of phase delay-line, a full 360° phase coverage is obtained. Additionally, the phase response curves are nearly parallel within a broad bandwidth, leading to a wideband operation. To verify this design, a prototype consisting of 10×22 unit cells is designed, fabricated and measured. The measured results show that the maximum gain reaches 21.50 dBi with 20.15% 1-dB gain bandwidth and 30.38% 3-dB gain bandwidth, respectively. Simulated and measured results agree very well with the proposed design scheme.

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Author Biographies

Fan Qin, State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China

Fan Qin received the B.S. degree in Electronic Information Engineering and the Ph.D. degree in Electromagnetic Wave and Microwave Technology from Northwestern Polytechnical University, Xi’an, China, in 2010 and 2016, respectively. He is currently a Lecturer with the State Key Laboratory of Integrated Services Networks (ISN), Xidian University. His research interests include OAM antenna design, circularly polarized antennas, dual-band/multiband antenna arrays, metamaterials antennas and transmitarrays.

Lihong Li, State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China

Li-hong Li is currently pursuing the Ph.D. degree in State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi’an, China. Her research interests include high-gain Wideband reflectarray antennas, metasurface antenna and OAM antenna design

Yi Liu, State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China

Yi Liu (M’09–SM’17) received the B.S. degree from Dalian Jiaotong University, Dalian, China, in 2002, and the M.S. and Ph.D. degrees from Xidian University, Xi’an, China, in 2005, and 2007, respectively, all in communication engineering. Since January 2008, he has been in the State Key Laboratory of Integrated Service Network, Xidian University, where he is currently a Professor. From March 2011 to February 2012, he was a Visiting Scholar in the University of Delaware, Newark, DE, USA. His research interests include signal processing for wireless communications, MIMO and OFDM wireless communications, and cooperative communications.

Hailin Zhang, State Key Laboratory of Integrated Services Networks (ISN) Xidian University, Xi’an 710071, China

Hai-lin Zhang (M'97) received B.S. and M.S. degrees from Northwestern Polytechnic University, Xi’an, China, in 1985 and 1988 respectively, and the Ph.D. from Xidian University, Xi’an, China, in 1991. In 1991, he joined School of Telecommunications Engineering, Xidian University, where he is a Senior Professor and the Dean of this school. He is also currently the Director of Key Laboratory in Wireless Communications Sponsored by China Ministry of Information Technology, a key member of State Key Laboratory of Integrated Services Networks, one of the state government specially compensated scientists and engineers, a field leader in Telecommunications and Information Systems in Xidian University, an Associate Director of National 111 Project. Zhang’s current research interests include key transmission technologies and standards on broadband wireless communications for 5G and 5G-beyond wireless access systems. He has published more than 150 papers in journals and conferences.

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Published

2020-07-01

How to Cite

[1]
Fan Qin, Lihong Li, Yi Liu, and Hailin Zhang, “A Broadband Reflectarray Based on Vivaldi Antenna Elements”, ACES Journal, vol. 35, no. 7, pp. 784–790, Jul. 2020.

Issue

2020: Vol 35 Iss 7

Section

General Submission