Increasing of microwave energy focusing effectiveness by using metamaterial structures

In this paper is using numerical simulations investigated effect of different composition of layered biological structures in human arm model and microwave applicator modification on the absorption of electromagnetic energy and thus specific absorption rate (SAR). First part of this paper is focused on influence description of different width of human arm structures on electromagnetic field propagation. The second part of the article deals with a possibility of focusation increase in the same human arm model using unique artificial structures - metamaterials. The metamaterial structures based on the split ring resonator approach are used for optimization of microwave generator characteristic. The main field of the study is absorption of microwave-frequency field by means of simulations performed in CST Microwave Studio environment.