Modeling Directional Two Arm Archimedes Spiral Coils in the RF Electromagnet Range

A. Kalinowski, and J. Maguire
Naval Undersea Warfare Center/Div. Npt. , Newport, RI, USA
Published in 2008

The paper addresses a class of problems for modeling and consequently simulating the electromagnetic field radiation pattern from a two arm Archimedes spiral coil. The performance of particular interest is knowledge of the radiated magnetic field H and electric field E in the neighborhood of the coil.

The results in this paper illustrate how COMSOL is used to solve for the radiated electromagnetic fields in the 3D space surrounding the flat spiral coils, in a RF frequency range where the dimensions of the coil are on the order of an electromagnetic wavelength.