Radiation improvement of microstrip antenna by metamaterial superstrate

被引：2
|
作者：
Kharroubi, Hakim [1 ]
Berbar, Tarik Bouzian [1 ]
Nacer, Azzeddine [1 ]
Moulai, Hocine [1 ]
机构：
[1] Univ Sci & Technol Houari Boumediene, Lab Power Equipment Characterizat & Diag, BP 32, Algiers 16025, Algeria
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 2022年 / 109卷 / 06期
关键词：
Microstrip patch antenna; radiation pattern; metamaterials; efficiency; directivity; RESONANT-FREQUENCY; CIRCULAR-DISK; PATCH ANTENNA; INDEX; PERMEABILITY; SUBSTRATE;
D O I：
10.1080/00207217.2021.1966666
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：
In this paper, a new approach to enhance the radiation efficiency of microstrip patch antennas by a quarter-wavelength antireflection superstrate is proposed. It is based on dielectric right-handed metamaterial (MM) built with U-shaped cells. The moments method in the spectral domain predicts a maximum radiation efficiency of 78% for disk microstrip antenna combined with quarter-wavelength dielectric antireflection superstrate. Design, optimisation and characterisation of the metamaterial layer are well described. A numerical analysis of the microstrip patch antenna disk with and without metamaterial antireflection layer is performed with commercial specialised software. The results of the simulation show significant performance improvement of the antenna in the presence of the metamaterial antireflection layer. Radiation efficiency, directivity and gain are respectively increased by 9%, 2dBi and 2.6 dB. This approach enabled to improve the total radiated power up to 18%.
引用
收藏
页码：1080 / 1095
页数：16
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