The analysis of several diffusers in a reverberation chamber by FDTD method

Author

Baoli, Shen ; Wu, Ren ; Benqing, Gao ; Shiming, Yang

Author_Institution

Beijing Inst. of Technol., China

fYear

2002

fDate

17-19 Aug. 2002

Firstpage

911

Lastpage

914

Abstract

In this paper the Finite-Difference Time-Domain (FDTD) method is used to investigate the effects of three types of acoustic diffusers on the field homogeneous characteristics in a reverberation chamber. This paper has three parts: the first one is the analysis of every type of diffuser attached alone on the wall surfaces in the chamber to improve the field uniformity. The second one presents the effect of three-dimensional Schroeder diffuser on the field uniformity in the chamber. And the last one investigates that the arbitrary combinations of the three kinds of diffusers homogenize the field of the chamber.

Keywords

acoustic field; finite difference time-domain analysis; reverberation chambers; FDTD method; acoustic diffuser; field uniformity; reverberation chamber; three-dimensional Schroeder diffuser; Acoustic measurements; Electromagnetic compatibility; Electromagnetic measurements; Finite difference methods; Geometry; Reverberation chamber; Rough surfaces; Surface roughness; Surface waves; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on

Print_ISBN

0-7803-7486-X

Type

conf

DOI

10.1109/ICMMT.2002.1187850

Filename

1187850