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Optimization of Field Uniformity in a Reverberation Chamber Using Quadratic Residue Diffusers

Jung-Hoon KIM, Sung-Il YANG, Joong-Geun RHEE

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Summary :

This letter presents results showing improved field uniformity in a reverberation chamber using quadratic residue diffusers. The optimal occupying ratio of the diffusers on one side wall of the chamber is presented. A reverberation chamber is an alternative to the semi-anechoic chamber, which is widely used for the analysis and measurement of electromagnetic interference and immunity. To analyze the field characteristics, quadratic residue diffusers were designed for the 1-3 GHz frequency band, and the FDTD method was used. At 1-3 GHz, the standard deviation of the test volume in the reverberation chamber was investigated. The reverberation chamber had good field uniformity when quadratic residue diffusers occupy 37.5-50% of one side wall of the reverberation chamber; the field uniformity saturated at the diffuser occupancy rate of 75%.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.10 pp.2787-2790
Publication Date
2010/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.2787
Type of Manuscript
LETTER
Category
Electromagnetic Compatibility(EMC)

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