Bandwidth Enhancement of Microstrip Patch Antenna Using Metasurface

Araújo, Felipe Ferreira de; Campos, Antonio Luiz Pereira de Siqueira; Lira, Ruann Victor de Andrade; Gomes Neto, Alfredo; d'Assunção, Adaildo Gomes

doi:10.1590/2179-10742021v20i1959

Article • J. Microw. Optoelectron. Electromagn. Appl. 20 (1) • Mar 2021 • https://doi.org/10.1590/2179-10742021v20i1959 linkcopy

Bandwidth Enhancement of Microstrip Patch Antenna Using Metasurface

Authorship SCIMAGO INSTITUTIONS RANKINGS

In this article, bandwidth enhancement of a microstrip patch antenna using a new kind of metasurface is discussed. This new geometry is used to generate new resonances in antenna and with an optimal position of the metasurface in relation to antenna we can overlap the resonances and obtain a large bandwidth. The proposed antenna showed a bandwidth from 5.1 GHz to 8.0 GHz what can it able to be applied in WiFi 5 and 6. Numerical results were obtained with Ansys HFSS software. A prototype was built and measurements for S₁₁, Smith chart and gain were performed. Numerical and experimental results are in good agreement.

Index Terms
Patch Antenna; Metasurface; Bandwidth Enhancement

Reference number	Fractional bandwidth	Volume (cm³)	Peak Gain (dBi)
[⁶]	54 %	5.04	7.2
[¹¹]	43 %	22.4	11.6
[¹²]	62 %	2.56	3.6
[¹³]	28 %	36.8	8.4
[¹⁴]	1.8 %	1.51	4.6
[¹⁵]	39 %	4.53	6.8
This work	45.4 %	3.82	3.8

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