Title :
Reverberation chamber: Calibration, evaluation and application in transfer impedance measurement
Author :
Andriambeloson, J.A. ; Wiid, P.G. ; Reader, H.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Stellenbosch, Stellenbosch, South Africa
Abstract :
We study the performance of a reverberation chamber for coaxial cable transfer impedance determination. The chamber is calibrated according to the relevant IEC standard 61000-4-21. The results are evaluated from radiated power measurement of a standard radiator, using an Open Area Test Site equivalent E-field approach. The transfer impedance of a 50 Ω coaxial air-line is tested with the calibrated chamber. Initial results show correlation to theoretical transfer impedance estimates and published data in the literature. This work is mainly done for practical classification of coaxial cables to mitigate interference from the Karoo Array Telescope cabling systems.
Keywords :
IEC standards; calibration; coaxial cables; electric impedance measurement; electromagnetic interference; power measurement; reverberation chambers; telescopes; IEC standard 61000-4-21; Karoo Array Telescope cabling system; calibration; coaxial air-line; coaxial cable transfer impedance determination; interference mitigation; open area test site equivalent E-fleld approach; radiated power measurement; resistance 50 ohm; reverberation chamber; transfer impedance measurement; Antenna measurements; Cable shielding; Calibration; Coaxial cables; IEC standards; Impedance; Reverberation chamber; Metrology; Reverberation chamber; Shielding effectiveness; Transfer impedance;
Conference_Titel :
AFRICON, 2011
Conference_Location :
Livingstone
Print_ISBN :
978-1-61284-992-8
DOI :
10.1109/AFRCON.2011.6072011