An FFT-accelerated fdtd scheme with exact absorbing conditions for characterizing axially symmetric resonant structures

Handle URI:
http://hdl.handle.net/10754/561604
Title:
An FFT-accelerated fdtd scheme with exact absorbing conditions for characterizing axially symmetric resonant structures
Authors:
Sirenko, Kostyantyn; Pazynin, Vadim L.; Sirenko, Yu K.; Bagci, Hakan ( 0000-0003-3867-5786 )
Abstract:
An accurate and efficient finite-difference time-domain (FDTD) method for characterizing transient waves interactions on axially symmetric structures is presented. The method achieves its accuracy and efficiency by employing localized and/or fast Fourier transform (FFT) accelerated exact absorbing conditions (EACs). The paper details the derivation of the EACs, discusses their implementation and discretization in an FDTD method, and proposes utilization of a blocked-FFT based algorithm for accelerating the computation of temporal convolutions present in nonlocal EACs. The proposed method allows transient analyses to be carried for long time intervals without any loss of accuracy and provides reliable numerical data pertinent to physical processes under resonant conditions. This renders the method highly useful in characterization of high-Q microwave radiators and energy compressors. Numerical results that demonstrate the accuracy and efficiency of the method are presented.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Computational Electromagnetics Laboratory
Publisher:
EMW Publishing
Journal:
Progress in Electromagnetics Research
Issue Date:
2011
DOI:
10.2528/pier10102707
Type:
Article
ISSN:
10704698
Appears in Collections:
Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSirenko, Kostyantynen
dc.contributor.authorPazynin, Vadim L.en
dc.contributor.authorSirenko, Yu K.en
dc.contributor.authorBagci, Hakanen
dc.date.accessioned2015-08-02T09:15:11Zen
dc.date.available2015-08-02T09:15:11Zen
dc.date.issued2011en
dc.identifier.issn10704698en
dc.identifier.doi10.2528/pier10102707en
dc.identifier.urihttp://hdl.handle.net/10754/561604en
dc.description.abstractAn accurate and efficient finite-difference time-domain (FDTD) method for characterizing transient waves interactions on axially symmetric structures is presented. The method achieves its accuracy and efficiency by employing localized and/or fast Fourier transform (FFT) accelerated exact absorbing conditions (EACs). The paper details the derivation of the EACs, discusses their implementation and discretization in an FDTD method, and proposes utilization of a blocked-FFT based algorithm for accelerating the computation of temporal convolutions present in nonlocal EACs. The proposed method allows transient analyses to be carried for long time intervals without any loss of accuracy and provides reliable numerical data pertinent to physical processes under resonant conditions. This renders the method highly useful in characterization of high-Q microwave radiators and energy compressors. Numerical results that demonstrate the accuracy and efficiency of the method are presented.en
dc.publisherEMW Publishingen
dc.titleAn FFT-accelerated fdtd scheme with exact absorbing conditions for characterizing axially symmetric resonant structuresen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputational Electromagnetics Laboratoryen
dc.identifier.journalProgress in Electromagnetics Researchen
dc.contributor.institutionInstitute of Radiophysics and Electronics of National Academy of Sciences of Ukraine (IRE NASU), 12 Acad. Proskura str., Kharkiv, 61085, Ukraineen
kaust.authorSirenko, Kostyantynen
kaust.authorBagci, Hakanen
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