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One-dimensional beam-steering Fabry–Perot cavity (FPC) antenna with a reconfigurable superstrate

Published online by Cambridge University Press:  29 August 2019

Lu-Yang Ji Open the ORCID record for Lu-Yang Ji [Opens in a new window] ,
Shuai Fu ,
Lin-Xi Zhang  and
Jian-Ying Li
Lu-Yang Ji*
Affiliation:
Northwestern Polytechnical University, No.129, Dongxiang Road, Chang'an District, Xi'an, Shaanxi Province710129, China
Shuai Fu
Affiliation:
Northwest Regional Air Traffic Management Bureau of CAAC, Fengqing Road, Lianhu District, Xi'an, Shaanxi Province710082, China
Lin-Xi Zhang
Affiliation:
Northwestern Polytechnical University, No.129, Dongxiang Road, Chang'an District, Xi'an, Shaanxi Province710129, China
Jian-Ying Li
Affiliation:
Northwestern Polytechnical University, No.129, Dongxiang Road, Chang'an District, Xi'an, Shaanxi Province710129, China
*
Author for correspondence: Lu-Yang Ji, E-mail: [email protected]
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Abstract

In this work, a new reconfigurable discrete 1D beam-steering Fabry–Perot cavity antenna with enhanced radiation performance is presented. It consists of a probe-fed patch antenna printed on the ground plane and a reconfigurable metasurface acting as the upper partially reflective surface to realize beam steering. By utilizing 6 × 6 proposed reconfigurable unit cells on the superstrate, the beam-steering angle can be effectively enhanced from ±7° to ±17° with fewer active elements and a much simpler biasing network. The proposed antenna was fabricated to validate the feasibility. Good agreement between the simulated and measured results is achieved. Moreover, the measured realized gains are over 11 dBi with a gain variation from the boresight direction to the tilted direction <0.2 dBi.

Keywords

Fabry-Perot cavity antennabeam steeringreconfigurable structure
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Issue 3 , April 2020 , pp. 233 - 239
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019

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