
For FullText PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.

Statistical Characteristics of EField Distribution in a Reverberation Chamber
Katsushige HARIMA
Publication
IEICE TRANSACTIONS on Communications
Vol.E88B
No.8
pp.31273132 Publication Date: 2005/08/01
Online ISSN:
DOI: 10.1093/ietcom/e88b.8.3127
Print ISSN: 09168516 Type of Manuscript: Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility) Category: Measurements Keyword: reverberation chamber, Efield uniformity, Rayleigh distribution, probability density function,
Full Text: PDF(1.7MB)>>
Summary:
A statistically uniform Efield is created in a reverberation chamber by moving mechanical stirrers to vary boundary conditions. The uniformity of the spatial electricfield distribution in an ideal reverberation chamber can be theoretically estimated by calculating the probability density function of its distribution. However, uniformity in an actual chamber is affected by the dimensions of the chamber and the structure of the stirrers. We experimentally and theoretically evaluated the effect of stirrers on the spatial uniformity of the average, median, and maximum electricfield distributions. When the dimensions of a chamber equipped with effective stirrers are large compared to the wavelength at the operating frequency, that is, when resonant modes above approximately 10^{5} exist below the operating frequency, the spatial uniformity experimentally evaluated agrees well with theoretical values estimated by calculating the probability density function of their distributions.

