Auto dissection of entity with three-dimensional netwok based on FDTD

Author

Chen, L.L. ; Liao, C. ; Xia, X.Y.

Author_Institution

Inst. of Electromagn., Southwest Jiaotong Univ., Chengdu, China

fYear

2010

fDate

12-16 April 2010

Firstpage

920

Lastpage

923

Abstract

A Software of auto dissection of entity with three-dimensional network for FDTD simulation is developed. Supported by Auto CAD, Visual Basic for Applications(VBA) is used together with Drawing Exchange Files(DXF). This software is convenient and efficient to transform any 3D entity created by Auto CAD for FDTD simulation, especially in geometrically complicated electromagnetic problems. At first,entities plotted by Auto CAD.Then this model is sliced into a lot of blocks by a program of VBA.These new entities will be approximated follow Staircase Approximation(SA). And the final model messages are saved as DXF format. A follow-up program is called for extracting model information. And the electromagnetic parameters of model are determined by the color code of itself. Finally, the model is simulated by a FDTD program. Correctness and practicability of the software are validated through an example of TEM horn antenna.

Keywords

CAD; Visual BASIC; computational electromagnetics; computer graphics; digital simulation; finite difference time-domain analysis; horn antennas; 3D entity auto dissection; Auto CAD; DXF; Drawing Exchange Files; FDTD simulation; Staircase Approximation; TEM horn antenna; VBA; Visual Basic for Applications; auto dissection software; color code; electromagnetic parameters; geometrically complicated electromagnetic problems; model information extraction; three-dimensional network; Finite difference methods; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (APEMC), 2010 Asia-Pacific Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-5621-5

Type

conf

DOI

10.1109/APEMC.2010.5475734

Filename

5475734