Conditions for application of asymptotic method to electromagnetic field analysis in the system of “a current loop-an electroconducting body”
A study of the conditions of application of an approximate method for analysis of a three-dimensional pulse electromagnetic field with an arbitrary current loop, which is located near the flat surface of a conductive body, has been performed. It has been shown that each term of the asymtotic series is calculated with some accuracy, and therefore it has its own minimum cutoff frequency.