This project explores the testing procedures in which the anechoic chamber, located onlevel 2 of the Faculty of Engineering and Surveying building at the University ofSouthern Queensland, can be characterised in the way of its performance regardingelectromagnetic compatibilities. This characterisation will help further users of theanechoic chamber better understand the results in which are obtained within thechamber as well as know the interference that could be caused by the leakage of signalscoming from the chamber.The performance characteristics that will be looked at are first of all the ability for theanechoic chamber to keep environmental noise from entering the chamber walls,creating false measurements, preventing harmful signals escaping and interfering withother commercial bandwidths.Then the pyramidal absorbers themselves will be analysed and their capability ofattenuating a wide range of frequencies over a set number of angles of incidences willbe recorded. This is the first step in a bigger task of being able to explain the patterns ofvariation in the electromagnetic field in a two dimensional plane. The way in which theperformance of the pyramidal absorbers varies with angle helps explain this, as it givesthe magnitude of absorption when a wave is reflected off the wall and interferes withthe direct path, This process of following the different paths around the enclosed area iscalled ray tracing which is touched on in this project, but due to time constraints onlythe theory of the technique is recalled.From the results that were obtained, the anechoic chamber can now be utilised as to geta more accurate measurement by being able to configure the testing specifications tosuit the chambers performance strengths and weaknesses. Even though somecharacterisation has been logged, there is still the potential for further work to be doneto optimise the anechoic chambers useability and hopefully someday match thestandards set for a commercial anechoic chamber.
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