Cost-Effective Approach for the Determination of Specific Absorption Rate of Liquid Phantom

In this paper, point thermal specific absorption rate (SAR) of the liquid phantoms are determined by simulation and measurement on an elliptical cylinder for a microstrip patch antenna (MPA) operating in the medical body area network (MBAN) band. For this, we measured the temperature rise of the liquids exposed to EM wave (MPA) for a given time. The liquid phantom (homogeneous) is developed by varying the percentage of salt and sugar in 250g of water, whereas, skin phantom is developed by varying the weight of water in 200g of glycerin. The reported technique to measure SAR can provide measurements without the need for an expensive arrangement of dielectric probe kit and this demonstrates the cost-effectiveness of the proposed technique. Finally, we validated our proposed theory with simulation by keeping the conditions identical to measurement which demonstrates excellent resemblance.