A Domain Decomposition Finite Difference Time Domain (Fdtd) Method For Scattering Problem From Very Large Rough Surfaces

Keywords

Domain decomposition (DD); Finite difference time domain (FDTD); Rough surface; Scattering

Abstract

A domain decomposition-finite difference time domain (DD-FDTD) method is proposed to solve the problem of electromagnetic scattering from very large rough surfaces. The entire computational domain is decomposed into multiple subdomains. Each subdomain is simulated by using the conventional FDTD method to obtain the scattered fields on a Huygens' surface and the total fields on the rough surface. The latter is used to compute the scattered field on the Huygens' surface in adjacent subdomains, by invoking the reciprocity theorem. Simulation results are compared with those in the literatures to validate this method. The normalized radar cross sections (NRCSs) from very large surfaces of 66λ × 66λ are also presented to demonstrate the efficacy of this method.

Publication Date

10-1-2015

Publication Title

IEEE Transactions on Antennas and Propagation

Volume

63

Issue

10

Number of Pages

4468-4476

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TAP.2015.2466466

Socpus ID

84954326489 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84954326489

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