Simplified Generation of Electromagnetic Field within EMC Immunity Test Area

For electromagnetic radiated immunity testing a homogeneous electromagnetic field within the test area is required. For this reason floor absorbers are obviously placed between the transmitting antenna and equipment under test. The paper analyses the possibility to fulfil homogeneity requirements without the absorbers only by changing the antenna height between two positions and by appropriate controlling of test field frequency. The paper demonstrates the possibility of this solution with full satisfaction of the field uniformity requirements.