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Calculation of Whole-Body SAR from a 100 MHz Dipole Antenna

By Ming Zhang and A. Alden
Progress In Electromagnetics Research, Vol. 119, 133-153, 2011


This paper presents results of a dosimetry study at an FM broadcasting frequency of 100 MHz. The work focused on SAR calculations with high resolution Magnetic Resonance Imaging (MRI)-based full-body models. FDTD computer modeling used a half-wave dipole as the exposure source. Extensive calculations give the variation of SAR with distance and show that whole-body average SAR exhibits a different distance dependency from the incident power density. Body size has a significant effect on SAR. Based on the numerical results, an empirical formula was developed to describe the relationship between antenna input power and distance for the limiting SAR value.


Ming Zhang and A. Alden, "Calculation of Whole-Body SAR from a 100 MHz Dipole Antenna," Progress In Electromagnetics Research, Vol. 119, 133-153, 2011.


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