Wide-angle, wide-band, polarization-insensitive metamaterial absorber for thermal energy harvesting

A Elsharabasy, M Bakr, MJ Deen - Scientific Reports, 2020‏ - nature.com
We propose a wide-band metamaterial perfect absorber (MPA), using the coupling in the
near-field of a quadruple split-ring resonator concentric with crossed ellipses. We designed …

[HTML][HTML] Oxides for Rectenna technology

IZ Mitrovic, S Almalki, SB Tekin, N Sedghi, PR Chalker… - Materials, 2021‏ - mdpi.com
The quest to harvest untapped renewable infrared energy sources has led to significant
research effort in design, fabrication and optimization of a self-biased rectenna that can …

[HTML][HTML] MIIM-based optical log spiral rectenna for efficient IR energy harvesting

A Yahyaoui, A Elsharabasy, J Yousaf… - Alexandria Engineering …, 2022‏ - Elsevier
This study proposed, for the first time, a newly developed metal–insulator-insulator–metal
(MIIM)-based log-spiral rectenna for energy harvesting applications. The designed resonant …

Infrared Thermoelectric Nanoantenna with Maximum Output Voltage Using Grounded and Open‐Ended SiO2

MK Anam, S Choi - Advanced Optical Materials, 2023‏ - Wiley Online Library
The potential of a nanoantenna‐coupled thermocouple to convert untapped infrared (IR)
energy from low‐temperature heat sources into direct current (DC) energy has recently …

Single and triple insulator Metal-Insulator-Metal diodes for infrared rectennas

SB Tekin, AD Weerakkody, N Sedghi, S Hall… - Solid-State …, 2021‏ - Elsevier
Tunnel-barrier rectifiers comprising single and triple insulator configurations have been
fabricated by atomic layer deposition (ALD) to investigate the insulator (Al 2 O 3, Ta 2 O 5 …

An impedance matcher for microwave rectifier to broaden load range

J Chen, H **ao, H **ong, D **ao… - IEEE Microwave and …, 2022‏ - ieeexplore.ieee.org
In this letter, a novel impedance matcher (IM) is designed based on Zeta converter to
overcome the shortcomings of other impedance matching methods and improve the load …

[HTML][HTML] Numerical analysis of MIM-based log-spiral rectennas for efficient infrared energy harvesting

A Yahyaoui, A Elsharabasy, J Yousaf, H Rmili - Sensors, 2020‏ - mdpi.com
This work presents the design and analysis of a metal-insulator-metal (MIM)-based optical
log spiral rectenna for efficient energy harvesting at 28.3 THz. To maximize the benefits of …

Applicability of Sc2O3 versus Al2O3 in MIM rectifiers for IR rectenna

S Almalki, SB Tekin, N Sedghi, S Hall, IZ Mitrovic - Solid-State Electronics, 2021‏ - Elsevier
Impedance matching between the terahertz antenna and ultra-fast Metal-Insulator-Metal
(MIM) diode is a crucial issue in realizing rectenna technology for harvesting infrared (IR) …

Optimized polarization-independent Chand-Bali nano-antenna for thermal IR energy harvesting

AY Elsharabasy, MH Bakr, MJ Deen - Scientific Reports, 2023‏ - nature.com
A novel, polarization-independent, wide-angle reception Chand-Bali nano-antenna is
proposed. An adjoint-based optimization algorithm is used to create the same resonance at …

Vivaldi dipole nano‐rectenna for IR energy harvesting at 28.3 THz

W Amara, A Yahyaoui, N Eltresy… - … Journal of Numerical …, 2021‏ - Wiley Online Library
A Vivaldi dipole rectenna system for infrared (IR) energy harvesting is investigated. First, a
parametric study on the Vivaldi dipole antenna is performed to collect the maximum electric …