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http://dx.doi.org/10.5515/KJKIEES.2007.18.4.372

Optimization and Improvements of Field Uniformity in a Reverberation Chamber with Schroeder Diffusers  

Kim, Jung-Hoon (Dept. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang University)
Rhee, Joong-Geun (School of Electrical Engineering and Computer Science, Hanyang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.4, 2007 , pp. 372-378 More about this Journal
Abstract
This paper presents an improvement of field uniformity in a reverberation chamber with QRDs(Quadratic Residue Diffuser) and also shows the optimal dimension of the QRDs. The QRD is designed for $1{\sim}3\;GHz$ frequency band and the FDTD(finite-Difference Time-Domain) method is used to analyze the field characteristics. At 2 GHz, the standard deviation of test volume in the reverberation chamber is the smallest when the QRD has $30{\sim}60\;%$ coverage of one side of the reverberation chamber and the field uniformity is worsened when the coverage of the QRD is either below 20 % or above 70 % of the area of the side wall. Particularly, the standard deviation of test volume in the reverberation chamber with 30 % coverage of QRD is improved by 1.53 dB compared to that of the reference chamber with no QRDs.
Keywords
Reverberation Chamber; FDTD; Field Uniformity; Schroeder Diffuser;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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