Technical theme topics

Abstract

EMC testing requires a predictable test environment where the behaviour of the equipment under test (EUT) - be it for emission or immunity - is not unduly influenced by the properties of the test environment. A desired test environment does not favour certain frequencies or measurement locations. One way of avoiding such resonances is to suppress reflections, e.g. by lining the walls of test chambers with radiation absorbing material (anechoic chamber). This is generally expensive and requires large input power to establish high intensity fields for immunity testing. Another option is to maximize reflections in such a manner that we obtain statistically uniform fields (reverberation chamber). It is the latter option that is explored here in the paper by Serra et al.