EMI Testing Speed Optimization for Commercial Systems

Modern EMI testing becomes more challenging with more complex DUTs, rising frequencies and faster operating cycles. A complete system test consist of many individual measurement's over height, turning angle, polarization or DUT operating modes. With modern instrumentation, the bottlenecks shifts from the EMI receiver to the mechanical accessories as the antenna mast or the turntable. The paper examines the performance gain of optimized use of the EMI setup, both in testing speed as well as the increased reliability and better analysis capabilities for emission identification for the case of a failed EMI test. This not only saves time and money for the test, but also shortens development cycles with clearer information on where to find the EMI emission cause.