Development of a liquid-type human-body equivalent antenna using NaCl solution

Radio-frequency (RF) safety guidelines requires to estimate the ankle induced current in the human body standing on the ground in Very High Frequency (VHF) band because of the whole-body resonance. In this presentation we have investigated the human-body equivalent antenna for estimation of the induced ankle current. First, we verified that the numerical calculation is valid for designing the specification of the antenna, i.e., the electrical properties of the tissue-equivalent liquid. Next, we determined the optimized electrical properties of the tissue-equivalent liquid for simulating the actual induced ankle current. Consequently, we demonstrated the human-body equivalent antenna using of 2.6-% NaCl solution for the tissue-equivalent liquid at 21-degree C can estimate ankle induced current within 20-% error.