Modeling and analysis the effect of radio-frequency fields in hospitals to the medical equipment

Abstract

This paper proposes a modeling and method to assess the RF interference in hospital areas. Field-strength measurement has done inside and outside of two main hospitals in Bangkok at frequency between 55 and 1918 MHz, and the data were compared to fields predicted using the proposed models. The measured fields generally remained below 1 V/m. The outside mode prediction method provided a worst-case estimation of the electromagnetic environmental hazard. The modeling method predicted fields to within a range of 12 dB.