Comparison of high- and low-frequency electromagnetic field analysis

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Abstract
Research in the area of electromagnetic field computation has evolved within two distinct groups which are distinguished by their areas of applications. High frequency field computation has developed mostly out of the need to analyze antennas and scatterers in open space and also microwave devices. Low frequency field analysis, on the other hand, has developed around electrostatic, magnetostatic and eddy current applications. The paper reviews the two favourite methods of these groups: the method of moments and the finite element method. The objective is to show the common origin of the two methods. With the common grounds clearly established, it is hoped that there will be cross-fertilization of ideas between the low- and high frequency groups

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