Harmonic analysis using time-domain simulation of sinusoidally time-varying materials

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Abstract

It is shown how spectra of any harmonic order may be obtained from time-domain simulation of devices involving sinusoidal modulation of the constituent materials. The technique involves conducting multiple simulations in which the global phase of the modulating signals is progressively incremented. The ensuing simulation results are linearly combined to extract the harmonic order of interest. The technique is demonstrated via finite-different time-domain analysis of a space-time modulated surface which shows good agreement with theoretical calculations.

Original languageEnglish
Title of host publication2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781733509626
DOIs
StatePublished - Aug 1 2021
Event2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021 - Virtual, Hamilton, Canada
Duration: Aug 1 2021Aug 5 2021

Publication series

Name2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021

Conference

Conference2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
Country/TerritoryCanada
CityVirtual, Hamilton
Period08/1/2108/5/21

Keywords

  • Computational electromagnetics
  • Electromagnetic (EM) theory
  • Finite-difference time-domain (FDTD)
  • Microwave optical design
  • Numerical techniques
  • Photonics
  • Time-domain analysis

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