Cargando…

The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz

Mobile communication has achieved enormous technology innovations over many generations of progression. New cellular technology, including 5G cellular systems, is being deployed and making use of higher frequencies, including the Millimetre Wave (MMW) range (30–300 GHz) of the electromagnetic spectr...

Descripción completa

Detalles Bibliográficos
Autores principales: Foroughimehr, Negin, Vilagosh, Zoltan, Yavari, Ali, Wood, Andrew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9371411/
https://www.ncbi.nlm.nih.gov/pubmed/35957481
http://dx.doi.org/10.3390/s22155924
_version_ 1784767132744024064
author Foroughimehr, Negin
Vilagosh, Zoltan
Yavari, Ali
Wood, Andrew
author_facet Foroughimehr, Negin
Vilagosh, Zoltan
Yavari, Ali
Wood, Andrew
author_sort Foroughimehr, Negin
collection PubMed
description Mobile communication has achieved enormous technology innovations over many generations of progression. New cellular technology, including 5G cellular systems, is being deployed and making use of higher frequencies, including the Millimetre Wave (MMW) range (30–300 GHz) of the electromagnetic spectrum. Numerical computational techniques such as the Finite Difference Time Domain (FDTD) method have been used extensively as an effective approach for assessing electromagnetic fields’ biological impacts. This study demonstrates the variation of the accuracy of the FDTD computational simulation system when different meshing sizes are used, by using the interaction of the critically sensitive human cornea with EM in the 30 to 100 GHz range. Different approaches of base cell size specifications were compared. The accuracy of the computation is determined by applying planar sensors showing the detail of electric field distribution as well as the absolute values of electric field collected by point sensors. It was found that manually defining the base cell sizes reduces the model size as well as the computation time. However, the accuracy of the computation decreases in an unpredictable way. The results indicated that using a cloud computing capacity plays a crucial role in minimizing the computation time.
format Online
Article
Text
id pubmed-9371411
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-93714112022-08-12 The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz Foroughimehr, Negin Vilagosh, Zoltan Yavari, Ali Wood, Andrew Sensors (Basel) Article Mobile communication has achieved enormous technology innovations over many generations of progression. New cellular technology, including 5G cellular systems, is being deployed and making use of higher frequencies, including the Millimetre Wave (MMW) range (30–300 GHz) of the electromagnetic spectrum. Numerical computational techniques such as the Finite Difference Time Domain (FDTD) method have been used extensively as an effective approach for assessing electromagnetic fields’ biological impacts. This study demonstrates the variation of the accuracy of the FDTD computational simulation system when different meshing sizes are used, by using the interaction of the critically sensitive human cornea with EM in the 30 to 100 GHz range. Different approaches of base cell size specifications were compared. The accuracy of the computation is determined by applying planar sensors showing the detail of electric field distribution as well as the absolute values of electric field collected by point sensors. It was found that manually defining the base cell sizes reduces the model size as well as the computation time. However, the accuracy of the computation decreases in an unpredictable way. The results indicated that using a cloud computing capacity plays a crucial role in minimizing the computation time. MDPI 2022-08-08 /pmc/articles/PMC9371411/ /pubmed/35957481 http://dx.doi.org/10.3390/s22155924 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Foroughimehr, Negin
Vilagosh, Zoltan
Yavari, Ali
Wood, Andrew
The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title_full The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title_fullStr The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title_full_unstemmed The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title_short The Impact of Base Cell Size Setup on the Finite Difference Time Domain Computational Simulation of Human Cornea Exposed to Millimeter Wave Radiation at Frequencies above 30 GHz
title_sort impact of base cell size setup on the finite difference time domain computational simulation of human cornea exposed to millimeter wave radiation at frequencies above 30 ghz
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9371411/
https://www.ncbi.nlm.nih.gov/pubmed/35957481
http://dx.doi.org/10.3390/s22155924
work_keys_str_mv AT foroughimehrnegin theimpactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT vilagoshzoltan theimpactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT yavariali theimpactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT woodandrew theimpactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT foroughimehrnegin impactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT vilagoshzoltan impactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT yavariali impactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz
AT woodandrew impactofbasecellsizesetuponthefinitedifferencetimedomaincomputationalsimulationofhumancorneaexposedtomillimeterwaveradiationatfrequenciesabove30ghz