scholarly journals THREE-DIMENSIONAL QUASI-STATIONARY ELECTROMAGNETIC FIELD GENERATED BY ARBITRARY CURRENT CONTOUR NEAR CONDUCTING BODY

2018 ◽  
Vol 2018 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Yu.M. Vasetsky ◽  
◽  
K.K. Dziuba ◽  
Keyword(s):  
Electromagnetic Field ◽  
Three Dimensional ◽  
Conducting Body

scholarly journals EXACT ANALYTICAL AND APPROXIMATE ASYMPTOTIC CALCULATION METHODS TO DETERMINE THREE-DIMENSIONAL ELECTROMAGNETIC FIELD NEAR CONDUCTING BODY WITH FLAT SURFACE

2021 ◽  
Vol 2021 (4) ◽  
pp. 3-13
Author(s):  
Yu.M. Vasetsky ◽  
Keyword(s):  
Electromagnetic Field ◽  
Approximate Solution ◽  
Flat Surface ◽  
Three Dimensional ◽  
Initial Time ◽  
Time Interval ◽  
Field Problem ◽  
Pulsed Field ◽  
Conducting Body ◽  
Sinusoidal Field

The analytical solution of the three-dimensional quasi-stationary electromagnetic field problem for a current located near conducting body with a flat surface is considered. The exact and approximate solution of the problem is presented. The exact solution has no restrictions on the external field configuration, physical properties of the medium, and frequency. The approximate solution is based on an expansion in asymptotic series and has limitations: for sinusoidal field, the solution is limited to frequencies above the lower limit; for pulsed field, the solution is limited by the initial time interval of the current pulse. Based on comparison of the results of exact and approximate calculations for nonuniform sinusoidal field at the interface between the media, the admissible value of the introduced small parameter is determined. For pulsed field the proposed choice of the limited time interval for calculating electomagnetic field using the asymptotic method is justified. References 29, figures 7.

scholarly journals Quantum electromagnetic field in a three-dimensional oscillating cavity

2002 ◽  
Vol 66 (3) ◽  
Author(s):  
Martin Crocce ◽  
Diego A. R. Dalvit ◽  
Francisco D. Mazzitelli
Keyword(s):  
Electromagnetic Field ◽  
Three Dimensional
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