Using Absorption Cross Section to Predict Coherence Bandwidth and other Characteristics of a Reverberation Chamber Set-up for Wireless System Tests

Published

October 3, 2016

Author(s)

Catherine A. Remley, Jos Dortmans, Damir Senic, Chih-Ming Wang, Christopher L. Holloway

Abstract

We present a method to predict the coherence bandwidth, delay spread and power transfer function of a reverberation chamber set-up. The method is based on the absorption cross section of the absorbing material that is added to the chamber. With an S-parameter measurement of an unloaded chamber and a measurement of one loading condition, the coherence bandwidth, delay spread and power transfer function for other loading conditions can be predicted. We tested this method in two different reverberation chambers and for different types, shapes and orientations of absorbing material. For all evaluated cases, the difference between the predicted and measured value of the coherence bandwidth, delay spread and power transfer function was below 6.2%.

Citation

IEEE Transactions on Electromagnetic Compatibility

Volume

58

Issue

5

Pub Type

Journals

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Keywords

absorption cross section, coherence bandwidth, delay spread, reverberation chamber, over-the-air test, wireless system

Citation

Remley, C. , Dortmans, J. , Senic, D. , Wang, C. and Holloway, C. (2016), Using Absorption Cross Section to Predict Coherence Bandwidth and other Characteristics of a Reverberation Chamber Set-up for Wireless System Tests, IEEE Transactions on Electromagnetic Compatibility, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919898 (Accessed October 6, 2025)