Results 1 to 10 of about 7,010 (166)

Rapid Detection of Coronavirus (COVID-19) Using Microwave Immunosensor Cavity Resonator

open access: yesSensors, 2021
This paper presents a rapid diagnostic device for the detection of the pandemic coronavirus (COVID-19) using a micro-immunosensor cavity resonator. Coronavirus has been declared an international public health crisis, so it is important to design quick ...
Dalia M. Elsheakh   +7 more
doaj   +1 more source

Performance Improvement of Substrate Integrated Cavity Fed Dipole Array Antenna Using ENZ Metamaterial for 5G Applications

open access: yesSensors, 2021
This paper exhibits a high-gain, low-profile dipole antenna array (DAA) for 5G applications. The dipole element has a semi-triangular shape to realize a simple input impedance regime. To reduce the overall antenna size, a substrate integrated cavity (SIC)
Shaza El-Nady   +3 more
doaj   +1 more source

Silver Sandwiched ITO Based Transparent Antenna Array for RF Energy Harvesting in 5G Mid-Range of Frequencies

open access: yesIEEE Access, 2021
A transparent antenna array based on silver sandwiched indium tin oxide (AgITO) heterostructure thin films is presented. The AgITO is sputtered on both sides of soda-lime glass (SLG) substrate, and the three thin films deposition parameters are optimized
Nermeen A. Eltresy   +4 more
doaj   +1 more source

Broadband Low RCS Based on Polarization- Dependent Artificial Magnetic Conductor Metasurface

open access: yesIEEE Access, 2023
The reduction of radar cross-section (RCS) becomes an essential requirement for many military and civilian applications. One of the ways to achieve this is by using artificial magnetic conductors (AMCs) as electromagnetic surfaces.
Shimaa A. M. Soliman   +3 more
doaj   +1 more source

A Pattern Reconfigurable Antenna Using Eight-Dipole Configuration for Energy Harvesting Applications

open access: yesSensors, 2023
A pattern reconfigurable antenna, composed of eight elements, is proposed for energy harvesting applications. Pattern reconfigurable antennas are a promising technique for harvesting from different wireless sources.
Mohamed Aboualalaa   +3 more
doaj   +1 more source

Dual-Band End-Fire Four-Element MIMO Antenna Array Using Split-Ring Structure for mm-Wave 5G Applications

open access: yesIEEE Access, 2023
This paper presents a dual-band split-ring structure that provides end-fire radiation characteristics for multi-input multi-output (MIMO) mm-wave 5G applications.
Mohamed Aboualalaa, Islam Mansour
doaj   +1 more source

Study on Metamaterial-based Bio-inspired Microstrip Antenna Array for 5G Enabled Mobile Health Technology [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
5G is a fifth-generation wireless technology that enables extremely fast data transfers and massive connection capacity. Existing Mobile health technology requires more reliable connection power and data transfer rates. The purpose of this research is to
John Colaco, Jillian Cotta
doaj   +1 more source

A multiple‐input‐multiple‐output on‐chip Quasi‐Yagi‐Uda antenna for multigigabit communications: Preliminary study

open access: yesEngineering Reports, 2020
This article presents a solution for the low gain and the poor efficiency of the on‐chip antennas (OCA). The four elements of Quasi‐Yagi‐Uda antennas (QYUA) are introduced based on the diversity technique to reduce the interference between the elements ...
Kamel S. Sultan   +2 more
doaj   +1 more source

Microstrip-fed Triangular UWB Microstrip Antenna Based on DGS

open access: yesInternational Journal of Applied Mathematics, Electronics and Computers, 2016
An ultra-wideband (UWB) monopole microstrip antenna is designed in this study. The design consists of a radiating triangular patch antenna (TPA) fed through a 50 Ohm microstrip transmission line (MTL) constructed over a defected ground structure (DGS). The triangular monopole well is matched to MTL with inserting a thin strip line.
Toktaş, Abdurrahim   +2 more
openaire   +4 more sources

Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications

open access: yesInternational Journal of Antennas and Propagation, 2014
Compact Vivaldi patch antenna with a parasitic meander line is presented in this paper. A PIN diode switch is used to connect and disconnect ultrahigh frequency band (UHF) with ultrawide bandwidth (UWB).
Dalia M. Elsheakh, Esmat A. Abdallah
doaj   +1 more source

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