Alternative method for the determination of the ideal electromagnetic reverberant frequency with frequency stirring technique

Shouyang Zhai; Xiang Zhou; Peng Hu; Yan Chen; Dan Chen; Zhongyuan Zhou; Mingjie Sheng

doi:10.1587/elex.18.20210069

LETTER

Alternative method for the determination of the ideal electromagnetic reverberant frequency with frequency stirring technique

Shouyang Zhai, Xiang Zhou, Peng Hu, Yan Chen, Dan Chen, Zhongyuan Zhou, Mingjie Sheng

Author information

Keywords: reverberation chamber (RC), electrically large cavity, ideal reverberant frequency, scattering parameter, ergodicity principle, frequency stirring technique

JOURNAL FREE ACCESS

2021 Volume 18 Issue 6 Pages 20210069

DOI https://doi.org/10.1587/elex.18.20210069

Browse “Advance online publication” version

Details

Abstract

For arbitrary electrically large cavities, the ideal reverberant frequency is of critical to predict the response of the reference antenna or the electronics inside. To determine the ideal reverberant frequency, this work has carried out a comparison study on the scattering parameter S₁₁ and S₂₁ based methods for the general case in reverberation chamber (RC). For the two methods, both of them share the same theoretical basis according to the ergodicity principle, i.e., the ideal field distribution and the commonly used correlation analysis. While for arbitrary electrically large cavities, the S₁₁ samples rely on the mechanical stirrer (which is not easy to be equipped like that of a classic RC), S₂₁ samples are more easily recorded by frequency stirring technique. And the corresponding experimental results show that the S₂₁ based method can provide a more conservative estimate of the ideal reverberant frequency.

Corresponding author

Register with J-STAGE for free!