Two-dimensional image method for time-harmonic line current in front of a PEC cylinder
✍ Scribed by I. V. Lindell; K. I. Nikoskinen
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 178 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
The well-known electrostatic two-dimensional image theory ( in¨ol¨ing a line charge parallel to a PEC perfectly electrically conduct-) ing cylinder is extended to the electromagnetic problem where the source is a time-harmonic current. The image of the current line is presented as a cylindrical surface current obeying an explicit series expression. It is shown that, by choosing the image cylinder properly, the con¨ergence of the series can be dramatically impro¨ed by extracting a line image source. The expression is seen to reduce to a simple line image besides the static limit case also, and when the distance of the line from the surface of the cylinder becomes infinitely large or ¨anishingly small.