Low-loss ultra-wideband beam switching metasurface antenna in X-band

被引：9

作者：

Swain, Rajanikanta ^{[1
]}

Naik, Deepak Kumar ^{[1
]}

Panda, Asit Kumar ^{[2
]}

机构：

[1] Berhampur Univ, Dept Elect Sci, Berhampur, Odisha, India

[2] NIST, Dept Elect & Commun Engn, Berhampur, Odisha, India

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2020年 / 14卷 / 11期

关键词：

microwave antenna arrays; antenna feeds; aperture-coupled antennas; antenna radiation patterns; ultra wideband antennas; slot antenna arrays; coplanar waveguide components; microwave metamaterials; metamaterial antennas; 2 pi transmission phase variation; Pancharatnam-Berry metasurface; offset metasurface superstrate; UWB antenna; CP band; broadside beam; low-loss ultra-wideband beam switching metasurface antenna; ultra-wideband metasurface-based beam-switching antenna system; coplanar waveguide fed slot antenna; hexagonal metallic aperture; CP beam; octagonal split ring inclusion-based meta-element; X-band UWB aperture coupled antenna system; next generation vehicular communication; satellite communication; frequency; 10; 2 GHz to 10; 8; GHz; DESIGN; TRANSMITARRAY;

D O I：

10.1049/iet-map.2019.0994

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This study proposes an ultra-wideband (UWB) metasurface-based beam-switching antenna system. A coplanar (CP) waveguide fed slot antenna (with 49% operating bandwidth) is coupled with a hexagonal metallic aperture to generate CP beam in the 10.2-10.8 GHz band. An octagonal split ring inclusion-based meta-element is designed to achieve 2 pi transmission phase variation with near-unity magnitude. The principle of the Pancharatnam-Berry metasurface is used to design an offset metasurface superstrate for tilting the main beam of the UWB antenna for the CP band. Measured results (S-11, axial ratio, and radiation pattern) agree well with full-wave simulations. The fabricated X-band UWB aperture coupled antenna system uses the metasurface superstrate to achieve a broadside beam for the lower band and tilted beam for the upper band. This antenna system holds promise for next-generation vehicular and satellite communication applications.

引用

页码：1216 / 1221

页数：6

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