Sensing Reverberation Chamber Loading for IO-Link Wireless Testing

Publication date
2021-08
Document type
Conference paper
Author
Krush, Dmytro
Organisational unit
DOI
URI
Scopus ID
ISBN
Conference
International Conference on Electromagnetics in Advanced Applications, ICEAA 2021
Project
Part of the university bibliography
✅
Keyword
IO-Link Wireless
Loading
NB-IoT
Over-the-Air (OTA) Test
Reverberation Chamber
Abstract
Reverberation chambers (RCs) can be used as repeatable and shielded test environments for electromagnetic compatibility testing and performance evaluation of wireless com-munication devices, as they inherently emulate a Rician/Rayleigh fading environment. Loading a RC with radio frequency (RF) absorbing material leads to an increasing coherence bandwidth (CBW) of the radio channel within the RC, where the appropriate value can be tailored to specific test specifications. In this paper the CBW is directly measured by the wireless system under test. Measurements were carried out with different loadings and the link quality indication (LQI) was used to determine an appropriate RC loading.
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