Efficient parallel analysis of transient plane wave scattering from nonplanar doubly periodic structures

This paper presents a fast scheme for solving a time-domain electric field integral equation pertinent to the analysis of transient plane wave scattering from nonplanar doubly periodic structures. The proposed scheme efficiently evaluates scattered fields from periodic structures by decomposing the...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 814; no. 1; pp. 12023 - 12028
Main Author Chen, Nan-Wei
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2017
Subjects
Algorithms
Boundary conditions
Electric fields
Integral equations
Periodic structures
Physics
Plane waves
Time domain analysis
Wave scattering
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Summary:This paper presents a fast scheme for solving a time-domain electric field integral equation pertinent to the analysis of transient plane wave scattering from nonplanar doubly periodic structures. The proposed scheme efficiently evaluates scattered fields from periodic structures by decomposing the sources that produce them into present and past components. The fields radiated by present sources are evaluated classically. In contrast, fields generated by past sources are expanded into time domain Floquet waves with modal amplitudes that are evolved in both space and time using a spectral time-stepping scheme complemented by Huygens' principle based boundary conditions. The kernel equations and efficient parallel evaluation associated with the scattered fields generated by past sources are validated and effectiveness of the resulting algorithm are demonstrated by a number of examples.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/814/1/012023