Investigating cost-effective EMC methods
Date
2005-12
Authors
Wiid, P. Gideon
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
Due to the expensive nature of high frequency measurements in the EMC (Electromagnetic
Compatability) field, more affordable methods of measurement instrumentation and
environments are investigated. Different calibration methods for an Automatic Network
Analyser (ANA) are evaluated against each other to determine the most cost-effective
method of calibration. The mathematics for all the calibration methods are used in
MATLAB programs which perform the error-calculation and correction which is usually
done by the ANA software. These programs can be used to develop a simplified homebuilt
ANA at reduced cost. The MATLAB program calibrations are compared to actual
ANA calibrations to determine accuracy. Different measurement environments are considered
as well to decide on a best compromise between cost and accuracy. To achieve this
a reverberation chamber was built in which measurements were done and compared to
measurements done on an Open Area Test Site. The Device Under Test was a standard
radiator constructed specifically for such measurements. The development of both the
radiator and the reverberation chamber are discussed and all the measurement results are
considered in this thesis.
Description
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.
Keywords
Dissertations -- Electrical and electronic engineering, Theses -- Electrical and electronic engineering, Electromagnetic compatibility, Electromagnetic measurements