TY - GEN
T1 - Calculating Scattering Spectra using Time-domain Modeling of Time-modulated Systems
AU - Mock, Adam
N1 - Publisher Copyright:
© 2020 Applied Computational Electromagnetics Society (ACES).
PY - 2020/7
Y1 - 2020/7
N2 - Obtaining agreement between theoretical predictions that assume single-frequency excitation and finite-difference time-domain (FDTD) simulations that employ broadband excitation in the presence of time-varying materials is challenging due to frequency mixing. A simple solution is proposed to reduce artifacts in FDTD-calculated spectra from the frequency mixing induced by harmonic refractive index modulation applicable to scenarios in which second order and higher harmonics are negligible. Advantages of the proposed method are its simplicity and applicability to arbitrary problems including resonant structures.
AB - Obtaining agreement between theoretical predictions that assume single-frequency excitation and finite-difference time-domain (FDTD) simulations that employ broadband excitation in the presence of time-varying materials is challenging due to frequency mixing. A simple solution is proposed to reduce artifacts in FDTD-calculated spectra from the frequency mixing induced by harmonic refractive index modulation applicable to scenarios in which second order and higher harmonics are negligible. Advantages of the proposed method are its simplicity and applicability to arbitrary problems including resonant structures.
KW - cavity resonators
KW - finite-difference time-domain method
KW - time-varying circuits
UR - http://www.scopus.com/inward/record.url?scp=85093123868&partnerID=8YFLogxK
U2 - 10.23919/ACES49320.2020.9196178
DO - 10.23919/ACES49320.2020.9196178
M3 - Conference contribution
AN - SCOPUS:85093123868
T3 - 2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020
BT - 2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020
Y2 - 27 July 2020 through 31 July 2020
ER -