[HTML][HTML] Actively MEMS-based tunable metamaterials for advanced and emerging applications

RJ Xu, YS Lin - Electronics, 2022 - mdpi.com
In recent years, tunable metamaterials have attracted intensive research interest due to their
outstanding characteristics, which are dependent on the geometrical dimensions rather than …

A beam-split metasurface antenna for 5G applications

TZ Fadhil, NA Murad, MKA Rahim, MR Hamid… - IEEE …, 2021 - ieeexplore.ieee.org
This article presents a hybrid metasurface split beam antenna for fifth-generation (5G)
mobile applications at 3.5 GHz. Multi-beam antennas with high directivity are required for a …

Metamaterial sensor based on reflected mirror rectangular split ring resonator for the application of microwave sensing

MR Islam, MT Islam, MS Soliman, B Bais, MJ Singh… - Measurement, 2022 - Elsevier
In this research paper, a new reflected mirror rectangular split-ring resonator-shaped
metamaterial sensor is proposed for the detection of materials and thickness of the …

Gradient index metasurface lens for microwave imaging

S Datta, A Tamburrino, L Udpa - Sensors, 2022 - mdpi.com
This paper presents the design, simulation and experimental validation of a gradient-index
(GRIN) metasurface lens operating at 8 GHz for microwave imaging applications. The unit …

Microwave imaging sensor system using metamaterial lens for subwavelength resolution

S Datta, L Upda - NDT & E International, 2023 - Elsevier
Lenses made of negative refractive index metamaterials can overcome the diffraction-limited
resolution of imaging at working distances in the far-field. This paper describes a novel …

Equivalent circuit of a planar microwave liquid sensor based on metamaterial complementary split ring resonator

S Mekki, R Zegadi, S Mosbah, D Sayad, I Elfergani… - Frequenz, 2024 - degruyter.com
In the present work, a study of a metamaterial complementary split ring resonator (CSRR)
microwave planar sensor for dielectric liquid characterization is carried out using HFSS …

Broadband and Energy‐Concentrated Absorber Based on Hemispherical‐Embedded Structure

Z Wu, Z Liang, X Shi, F Yang, R Dai… - Advanced Photonics …, 2023 - Wiley Online Library
Spatially concentrated absorption is able to form local hotspots and helps to generate hot
electrons with higher energy than free electrons, which can be used to improve the …

Broadband and precise reconfiguration of megahertz electromagnetic metamaterials for wireless power transfer

R Zhang, K Wang, X Wang, X Luo, C Zhao - Physica Scripta, 2023 - iopscience.iop.org
It is a significant challenge to construct reconfigurable electromagnetic metamaterials that
can precisely manipulate broadband megahertz electromagnetic waves. Herein, we report a …

Development of a Metalens for Radio Wave Ground-Penetrating Radars

A Gorst, A Mironchev, I Tseplyaev, R Satarov… - Applied Sciences, 2023 - mdpi.com
This article discusses the possibility of using a metamaterial to focus radiation from an
antenna for GPR. Composite ring conductors were used as a material for focusing radiation …

Bandpass frequency selective surfaces with fast roll-off characteristics

J Tong, Z Xu, J Li, W Zhong, J Shi, S Fang - Physica Scripta, 2024 - iopscience.iop.org
We propose a bandpass frequency selective surface (FSS) with fast cut-off characteristics
and low insertion loss. It consists of a compact high-frequency hybrid compression board …