We calculated the electromagnetic (EM) model of an external wire with an electrode that contacts human skin at 123.2 MHz and evaluated the influence of the electrode dimension as well as the distance between the wire and the human body on the EM model using an approximation of the human body by a single tissue flat phantom. Our case study provided a strong evidence that at 123.2 MHz there is no worst-case distance between a wire and a human body that maximizes the power deposition for any wire length or electrode width.
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