Results 11 to 20 of about 92,047 (225)

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

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

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

An efficient 1-D periodic boundary integral equation technique to analyze radiation onto straight and meandering microstrip lines [PDF]

open access: yes, 2012
A modeling technique to analyze the radiation onto arbitrary 1-D periodic metallizations residing on a microstrip substrate is presented. In particular, straight and meandering lines are being studied. The method is based on a boundary integral equation,
De Zutter, Daniël   +2 more
core   +1 more source

An analysis of microstrip with rectangular and trapezoidal conductor cross sections [PDF]

open access: yes, 1990
The finite-difference time-domain (FDTD) technique is used to analyze boxed microstrip with both rectangular and trapezoidal cross sections. It is confirmed that the exact shape of the conductor has a marked effect on the effective permittivity of the ...
McGeehan, JP, Railton, CJ
core   +2 more sources

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

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