Feasibility Study of Near Field Multiprobe System as EMC Measurement Set-up

Multiprobe spherical near-field measurements are a very powerful tool for fast and accurate characterization of electrical properties of antennas. The use of fast switching in one axis, and azimuth positioner and a near to far field transformation allows a strong time reduction in antenna measurements while maintaining high quality results. On the other hand, conventional EMC systems are typically based on the detection of the maximum power radiated by a device at different frequencies. The systems usually work in far field (or quasi-far field conditions), performing the measurements either at 3 or 10 meters. There are also well established standards for EMC measurements for getting these peak values and checking the good performance (low radiation) of the electronic devices. This paper analyzes the possibility of cost reduction for the EMC system based on an adjustment of the MVG MiniLab System, up to 6 GHz, analyzing the advantages and limitations.