Three dimensional huygens subgridding for FDTD

Author

Bérenger, Jean-Pierre

Author_Institution

Centre d´´Analyse de Defense, Arcueil, France

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

4

Abstract

The 2D HSG algorithm has been generalized to 3D. Experiments have shown that results are as accurate as in the 2D case. The late time stability seems slightly better in 3D than in 2D. And all the advantages of the HSG are preserved in 3D, i.e. large ratio of steps, small reflection from grid interface, same ratios of space and time steps, objects that can traverse the interface. In this paper, two experiments with the 3D Huygens subgridding are reported. The first one with a cavity where the energy penetrates through a thin slot. The second one with a small antenna placed within a subgrid and radiating towards a surrounding coarse grid.

Keywords

antenna radiation patterns; dipole antennas; electric fields; finite difference time-domain analysis; reflector antennas; slot antennas; 2D HSG algorithm; 3D Huygens subgridding algorithm; FDTD; HSG electric field; PEC reflector; grid interface; small dipole antenna radiation; thin slot; three-dimensional Huygens subgridding algorithm; time stability; Dipole antennas; Encoding; Filters; Finite difference methods; Grid computing; Reflection; Reflector antennas; Resonance; Space vector pulse width modulation; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE

Conference_Location

Charleston, SC

ISSN

1522-3965

Print_ISBN

978-1-4244-3647-7

Type

conf

DOI

10.1109/APS.2009.5171963

Filename

5171963