It is noted that the most difficult radiated electromagnetic interference (EMI) problems with table-top products often occur at frequencies where the maximum dimensions of the product are much smaller than a wavelength. Electrically small table-top products tend to be much more efficient radiation sources than dipole source models would predict, and the radiation is generally much more difficult to contain than other types of EMI source models indicated. The ways in which electrically small sources radiate are investigated, and a technique for modeling electrically small table-top products that have power or signal cables is proposed. The end-driven wire model is a strategy for reducing the product to a form that is more readily analyzed. The results is a relatively simple configuration that includes only those parameters of the product that are of primary importance to the radiated EMI calculation.
T. H. Hubing and J. F. Kaufman, "Modeling the Electromagnetic Radiation from Electrically Small Table-Top Products," IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers (IEEE), Jan 1989.
The definitive version is available at http://dx.doi.org/10.1109/15.19910
Electrical and Computer Engineering
Keywords and Phrases
EM Radiation; EMI; EMI Source Models; Dipole Source Models; Electrically Small Sources; Electrically Small Table-Top Products; Electromagnetic Interference; End-Driven Wire Model; Power Cables; Radiation Sources; Signal Cables
International Standard Serial Number (ISSN)
Article - Journal
© 1989 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.