Abstract
The author presents a brief overview of how the MOM (method of moments) is implemented in the NEC (numerical electromagnetic code), and illustrates its application to EMC (electromagnetic compatibility) by working through several typical EMC examples. Attention is given to a simple radiated emission problem, a dipole over an infinite ground plane, a dipole near a large metallic enclosure, variation of field strength with separation distance, and the impact of connecting a cable to an enclosure. From the examples presented, one can see that with the NEC one can break up a fairly complex problem into simpler pieces. In the process, greater insight is obtained into the mechanisms that can cause high radiated emissions. >
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