Synthesis of absorbing boundary conditions for the FDTD method: numerical results

Author

Tromp, E.N.M. ; Olivier, J.C.

Author_Institution

Twente Univ., Enschede, Netherlands

Volume

43

Issue

2

fYear

1995

fDate

2/1/1995 12:00:00 AM

Firstpage

213

Lastpage

215

Abstract

Presents numerical results in the form of a comparison of predictions due to a numerical algorithm using a previously published exact nonlocal absorbing boundary condition (ABC) and analytical results for the field radiated by an infinitely small dipole. The numerical approximations are derived, and application to the FDTD method is straightforward. The method is compared to a related approach due to De Moerlose et al., (see ibid., vol.41, no.7, p. 890-896, 1993) and it is shown that the method yields better accuracy since higher order interpolation and numerical integration schemes may be used with this formulation

Keywords

antenna radiation patterns; approximation theory; dipole antennas; electromagnetic fields; electromagnetic wave absorption; finite difference time-domain analysis; FDTD method; absorbing boundary conditions; dipole antenna; higher order interpolation; numerical algorithm; numerical approximations; numerical integration; numerical results; radiated field; Algorithm design and analysis; Boundary conditions; Computational modeling; DSL; Electromagnetic scattering; Finite difference methods; H infinity control; Interpolation; Reflection; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.366385

Filename

366385