Title: Sensing Reverberation Chamber Loading for IO-Link Wireless Testing
Authors: Cammin, Christoph 
Krush, Dmytro 
Heynicke, Ralf 
Scholl, Gerd 
Language: eng
Keywords: IO-Link Wireless;Loading;NB-IoT;Over-the-Air (OTA) Test;Reverberation Chamber
Issue Date: Aug-2021
Publisher: IEEE
Document Type: Conference Object
Project: IO-Link Wireless for IEC-Approval 
Conference: International Conference on Electromagnetics in Advanced Applications, ICEAA 2021
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.
Organization Units (connected with the publication): Elektrische Messtechnik 
ISBN: 9781665413862
Publisher DOI: 10.1109/ICEAA52647.2021.9539761
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