NDLI: Analysis of finite-differencing errors to determine cell size when modeling ferrites and other lossy electric and magnetic materials using FDTD

Content Provider	IEEE Xplore Digital Library
Author	Chamberlin, K. Vidacic, D.
Copyright Year	1964
Abstract	The focus of this paper is the modeling of materials that have both significant electric and magnetic losses, such as ferrites, using finite-difference time domain (FDTD). The primary contribution is identifying appropriate cell sizes when modeling these types of materials. It is shown that finite-differencing errors increase in lossy media compared to lossless media when sampling at the same number of cells per wavelength. Losses in a medium are defined by the ratio of the attenuation constant, /spl alpha/, to the phase constant, /spl beta/, since that ratio accounts for all losses, whether they be electric or magnetic. In addition to a detailed finite-differencing error analysis, a simple approximation is given for selecting a cell size in a lossy material that will give the same finite-differencing error as ten cells per wavelength in a lossless material. This paper also presents a means for deriving pure real constitutive parameters from complex constitutive parameters. Being able to make such calculations is useful in cases where complex constitutive parameters are given for a material, and the FDTD model being used only accepts pure real constitutive parameters, as is the case for several contemporary models. Comparisons of theoretical and FDTD-modeled reflection and transmission show that the derived, real constitutive parameters are valid.
Sponsorship	IEEE Electromagnetic Compatibility Society
Starting Page	617
Ending Page	623
Page Count	7
File Size	286820
File Format	PDF
ISSN	00189375
Volume Number	46
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	FDTD methods Losses Magnetic losses Error analysis Ferrite materials/devices finite-difference time-domain (FDTD) methods Ferrimagnetic materials ferrites ferromagnetic materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Lumped Circuit Model for Lossy Magnetized Ferrites and Its Applications

FDTD analysis of magnetized ferrites: application to the calculation of dispersion characteristics of ferrite-loaded waveguides

Analysis of exponential time-differencing for FDTD in lossy dielectrics

Some nonlinear properties on the electromagnetic waves in magnetic material

Error Estimation and Performance Control for the (2,4) FDTD Method in Lossy Spaces

Some Numerical Aspects of an Extension of the FDTD Method to Incorporate Magnetized Ferrites

High-Frequency Tunneling Magnetic Loss in Soft Ferrites

A time domain algorithm for spinwave resonance in magnetic media

Optimal Coefficients of the Spatial Finite Difference Operator for the Complex Nonstandard Finite Difference Time-Domain Method

Analysis of finite-differencing errors to determine cell size when modeling ferrites and other lossy electric and magnetic materials using FDTD

Similar Documents

Lumped Circuit Model for Lossy Magnetized Ferrites and Its Applications

FDTD analysis of magnetized ferrites: application to the calculation of dispersion characteristics of ferrite-loaded waveguides

Analysis of exponential time-differencing for FDTD in lossy dielectrics

Some nonlinear properties on the electromagnetic waves in magnetic material

Error Estimation and Performance Control for the (2,4) FDTD Method in Lossy Spaces

Some Numerical Aspects of an Extension of the FDTD Method to Incorporate Magnetized Ferrites

High-Frequency Tunneling Magnetic Loss in Soft Ferrites

A time domain algorithm for spinwave resonance in magnetic media

Optimal Coefficients of the Spatial Finite Difference Operator for the Complex Nonstandard Finite Difference Time-Domain Method

Analysis of finite-differencing errors to determine cell size when modeling ferrites and other lossy electric and magnetic materials using FDTD