Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method

M. Burak Özakn, Liang Chen, Shehab Ahmed, Hakan Bagci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Loop antennas are often used for field generation in low-frequency electromagnetic applications. Since the antenna dimensions are much smaller than the wavelength, the antenna can accurately be replaced by its equivalent magnetic dipole model in simulations. In this paper, low-frequency magnetic dipole radiation fields in a conductive medium are computed using a three-dimensional discontinuous Galerkin Time-Domain (DGTD) scheme. It is shown that this computation can be accelerated using a material scaling scheme under Quasi-Static (QS) approximation, i.e., time step size can be scaled up without sacrificing from the accuracy and the stability of the time marching scheme. Radiated fields from a magnetic dipole in a conductive medium computed by this accelerated scheme are compared to those obtained using analytical expressions. Results are in good agreement.

Original languageEnglish
Title of host publication2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780996007887
Publication statusPublished - 10 May 2019
Event2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019 - Miami, United States
Duration: 14 Apr 201918 Apr 2019

Publication series

Name2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019

Conference

Conference2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019
CountryUnited States
CityMiami
Period14/4/1918/4/19

Fingerprint

Discontinuous Galerkin
magnetic dipoles
Dipole
Time Domain
Antennas
Loop antennas
Antenna
antennas
low frequencies
time marching
loop antennas
Low Frequency
Radiation
Wavelength
radiation distribution
electromagnetism
scaling
Scaling
approximation
wavelengths

Keywords

  • Discontinuous Galerkin time-domain method
  • magnetic dipole
  • Quasi-static approximation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computational Mathematics
  • Instrumentation
  • Radiation

Cite this

Burak Özakn, M., Chen, L., Ahmed, S., & Bagci, H. (2019). Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method. In 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019 [8712983] (2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019). Institute of Electrical and Electronics Engineers Inc..

Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method. / Burak Özakn, M.; Chen, Liang; Ahmed, Shehab; Bagci, Hakan.

2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8712983 (2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Burak Özakn, M, Chen, L, Ahmed, S & Bagci, H 2019, Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method. in 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019., 8712983, 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019, Institute of Electrical and Electronics Engineers Inc., 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019, Miami, United States, 14/4/19.
Burak Özakn M, Chen L, Ahmed S, Bagci H. Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method. In 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8712983. (2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019).
Burak Özakn, M. ; Chen, Liang ; Ahmed, Shehab ; Bagci, Hakan. / Computation of Fields from a Magnetic Dipole in a Conductive Medium Using the QS-DGTD Method. 2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 International Applied Computational Electromagnetics Society Symposium in Miami, ACES-Miami 2019).
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