Mechanically pattern reconfigurable antenna using metasurface

Author

Hai Liang Zhu ; Sing Wai Cheung ; Tong Ip Yuk

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China

Volume

9

Issue

12

fYear

2015

Firstpage

1331

Lastpage

1336

Abstract

A radiation pattern reconfigurable antenna designed using metasurface (MS) is proposed in this study. The pattern reconfigurable metasurfaced (PaRMS) antenna is composed of a planar semi-circular MS placed directly atop of a planar circular patch antenna with a diameter of 70 mm (1.2λ₀), making it compact and low profile. The main-beam direction of the antenna has an angle of 32° from the boresight direction. By rotating the MS around the centre of the patch antenna, the antenna beam can be steered continuously. The PaRMS antenna is studied and designed to operate at around 5.5 GHz. To verify the results of simulation, the PaRMS antenna is fabricated and measured. Results show that the antenna has an operating bandwidth from 5.4 to 5.6 GHz and measured peak realised gain of 7.2 dBi.

Keywords

antenna radiation patterns; microstrip antennas; microwave antennas; planar antennas; MS; PaRMS antenna; antenna beam; frequency 5.5 GHz; main beam direction; mechanically pattern reconfigurable antenna; metasurface; patch antenna; planar circular patch antenna; planar semicircular MS; radiation pattern reconfigurable antenna;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map.2014.0676

Filename

7244292