Wideband Phase-Gradient Metasurface Antenna With Focused Beams

Jia-Jun Liang; Guan-Long Huang; Jia-Ning Zhao; Zhi-Jian Gao; Tao Yuan

doi:10.1109/ACCESS.2019.2898550

IEEE Access (Jan 2019)

Wideband Phase-Gradient Metasurface Antenna With Focused Beams

Jia-Jun Liang,
Guan-Long Huang,
Jia-Ning Zhao,
Zhi-Jian Gao,
Tao Yuan

Affiliations

Jia-Jun Liang: ORCiD; Guangdong Provincial Mobile Terminal Microwave and Millimeter-Wave Antenna Engineering Research Center, College of Information Engineering, Shenzhen University, Shenzhen, China
Guan-Long Huang: ORCiD; Guangdong Provincial Mobile Terminal Microwave and Millimeter-Wave Antenna Engineering Research Center, College of Information Engineering, Shenzhen University, Shenzhen, China
Jia-Ning Zhao: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Zhi-Jian Gao: ATR National Key Laboratory of Defense Technology, College of Information Engineering, Shenzhen University, Shenzhen, China
Tao Yuan: Guangdong Provincial Mobile Terminal Microwave and Millimeter-Wave Antenna Engineering Research Center, College of Information Engineering, Shenzhen University, Shenzhen, China

DOI: https://doi.org/10.1109/ACCESS.2019.2898550
Journal volume & issue: Vol. 7
pp. 20767 – 20772

Abstract

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A transmitting lens antenna with focused beams by employing four-layer phase-gradient metasurface (PGMS) is proposed. A wideband slot-coupled antenna is mounted close to the focal position of the PGMS acting as a feed. The electromagnetic wave radiated through the feed source is transformed to plane wave within a wide frequency covering from 9.4 to 10.6 GHz. The in-band measured gain is from 16.7 to 19.4 dBi and a 3-dB gain bandwidth of around 10% is achieved, which demonstrates that the proposed four-layer PGMS still has the ability to focus electromagnetic wave within a wide frequency band efficiently though its transmission phase range at some specific frequency bands does not meet 360°.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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