Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187850
