A Novel Beam-Steerable Antenna Using HIS-SWG Reconfigurable Artificial Ground Structure

Authors

  • You-Feng Cheng Institute of Electromagnetics Southwest Jiaotong University, Chengdu 610031, China
  • Xiao Ding Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Wei Shao Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Cheng Liao Institute of Electromagnetics Southwest Jiaotong University, Chengdu 610031, China

Keywords:

Artificial ground structure (AGS), beamsteerable antenna, eigenvalue analysis, high-impedance surface (HIS), surface-wave guide (SWG)

Abstract

An artificial ground structure (AGS) which can be switched between the high-impedance surface (HIS), the surface-waveguide (SWG) and the HIS-SWG hybrid structure is proposed for the design of a beam-steerable antenna. The AGS is reconfigured with PIN diodes inserted on the bottom ground. The antenna radiates a broadside far-field pattern when the AGS is reconfigured into an HIS, and it steers its main beam to the endfire direction when the AGS exhibits as an HIS-SWG hybrid structure. The reconfigured HIS and SWG are analyzed using the Brillouin dispersion theory and the eigenvalue analysis, respectively. A prototype of the proposed beam-steerable antenna is fabricated and measured. The measured results including the reflection coefficients and radiation patterns validate the antenna performance.

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Published

2021-07-16

How to Cite

[1]
You-Feng Cheng, Xiao Ding, Wei Shao, and Cheng Liao, “A Novel Beam-Steerable Antenna Using HIS-SWG Reconfigurable Artificial Ground Structure”, ACES Journal, vol. 34, no. 01, pp. 107–114, Jul. 2021.

Issue

2019: Vol 34 Iss 1

Section

General Submission