Final comments
This work briefly describes methods of standard electromagnetic field generation in terms of primary standards and different types of secondary standards including exposure systems. With some exceptions (as, for instance, exposure systems presented in section 3.5) we may summarize that there are only four approaches to standard EMF generation that are in general use, namely: standards with dipole antennas, standards with loop antennas, standards with horn antennas, standards based upon guided waves.
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