Novel meta-surfaces for the design of broadband highly directive antennas

Author

Konstantinidis, Konstantinos ; Feresidis, Alexandros P.

Author_Institution

Sch. of Electron., Univ. of Birmingham, Birmingham, UK

fYear

2014

fDate

25-28 Aug. 2014

Firstpage

172

Lastpage

174

Abstract

Novel meta-surfaces for designing broadband highly directive Fabry-Perot type antennas are presented. The proposed structure is based on novel optimized multi-layer periodic surfaces that create multiple sub-wavelength cavities with enhanced bandwidth performance. Two double-layer periodic arrays of dissimilar dimensions are designed and optimized, each double-layer array consisting of an Artificial Magnetic Conductor (AMC) and a Partially Reflective Surface (PRS) printed on either side of a dielectric substrate. The two double-layer metasurfaces are placed at about quarter wavelength from a ground plane and from each other. An antenna of 18.3dBi directivity and 8% 3-dB radiation bandwidth is obtained.

Keywords

broadband antennas; directive antennas; AMC; Fabry-Perot type antennas; artificial magnetic conductor; broadband highly directive antennas; dielectric substrate; double-layer metasurfaces; double-layer periodic arrays; multilayer periodic surfaces; partially reflective surface; Bandwidth; Broadband antennas; Broadband communication; Cavity resonators; Optical surface waves; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on

Conference_Location

Lyngby

Print_ISBN

978-1-4799-3450-8

Type

conf

DOI

10.1109/MetaMaterials.2014.6948635

Filename

6948635