Mathematical models of cylindrical spiral antenna

In this article the cylindrical spiral antenna with a linear winding pitch that is placed over the perfectly conductive surface is considered. It was shown that with such statement this problem of current’s distribution in a spiral is reduced to a solving of a singular integral equation. To compare a mathematical model of spiral antenna for the thin wire approach was represented. The algorithm of integral equations is considered. The comparative analysis of the current’s distribution in a spiral is performed.