Distribution of electric and heat fields in a rectangular microwave camera with a cylindrical phantom

Numerical modeling methods were used to study the distribution of the electric field in a rectangular cavity excited by microwave radiation, in which there is a phantom in the form of a two-layer dielectric cylinder, the electrophysical parameters of which correspond to muscle and fat tissues of a human limb. It was shown that the electric field in the fat layer is noticeably greater than in the muscle layer, while the heterogeneity of the field is characteristic of both layers. The measurements showed that due to heat transfer, the resulting temperature heterogeneity in the phantom volume is noticeably smaller than the electric field inhomogeneity. Thus, despite the significant skin effect and the presence of weakly expressed standing waves, a fairly uniform heating of the phantom components is possible.

Keywords

Authors

References