Going beyond a simple RIS: Trends and techniques paving the path of future RIS

K Shafique, M Alhassoun - IEEE Open Journal of Antennas …, 2024 - ieeexplore.ieee.org
To have uninterrupted wireless connectivity, higher throughput, and latency rate down to
nanoseconds; future networks will rely heavily on higher frequency bands, yet these signals …

Polarization and incident angle independent multifunctional tunable terahertz metasurface based on graphene

UUR Qureshi, S Basir, F Mallek, H Hamam - Scientific Reports, 2024 - nature.com
Motivated by the imperative demand for design integration and miniaturization within the
terahertz (THz) spectrum, this study presents an innovative solution to the challenges …

High sensitive metasurface absorber for refractive index sensing

R Agrahari, S Dwivedi, PK Jain… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Metasurface absorber-based terahertz biosensors are one of the emerging fields for sensing
devices because of their quick response to changes in the background refractive index …

A broadband biosensor using graphene-metasurface based cross-polarization converter

SK Ghosh, A Chaudhuri, P Pal, B Rai… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
We present the design and analysis of a graphene metasurface-based cross polarization
converter operating within the terahertz gap for detecting biomolecules over a broad spectral …

Highly selective single-mode graphene bandpass filter based on Wilkinson power divider structure

G Mohammadi, AA Orouji, M Danaie - Diamond and Related Materials, 2024 - Elsevier
In this paper, we introduce a novel graphene nanoribbon bandpass filter designed using the
Wilkinson power divider structure for single-mode operation. Through the three-dimensional …

Broad-spectrum infrared metamaterial absorbers based on MXenes for solar cell applications

JM Ngobeh, V Sorathiya, A Alwabli… - Optical and Quantum …, 2024 - Springer
We presented the numerical investigation of the multilayered structure formed with Tungsten-
MgF2-SiO2-MXene-Au. This study presents several solar absorber materials that exploit …

Reconfigurable bandpass frequency-selective rasorber with perfect Elliptic filtering response

H Jiang, Y Zhang, Y Wu, B Jiang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Reconfigurable frequency-selective rasorbers (FSRs) with in-band shielding capabilities
have attracted extensive research interest over recent decades. However, the development …

An active multifunctional metamaterial with four operating modes

B Jiang, H Hu, J Tian, S Lei, Y Wu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
To improve the flexibility and integration of conventional metamaterials, active
multifunctional metamaterials (AMMs) have been intensively investigated in recent years. In …

Reconfigurable design of mmWave liquid-crystal frequency selective surface at Ka-band

HH Chou, GJ Ke, CC Lin, GS Lin - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A reconfigurable design of frequency selective surface (FSS) using nematic liquid crystal
(LC) materials is reported. The proposed LC-FSS resonates at Ka-band frequencies to …

Multi-band terahertz metamaterial absorber composed of concentric square patch and ring resonator array

S Asgari, T Fabritius - Optics Continuum, 2024 - opg.optica.org
An equivalent circuit model (ECM) to analyze a single-layered graphene multi-band
metamaterial absorber was developed. This absorber consists of concentric square patch …