Motorola Solutions Inc. 99FT4100 Manual De Usuario

This section describes how to determine the outdoor exposure model prediction of an antenna.

Full-wave and half-wave simulations are represented to show the exposure conditions.

The full-wave simulations based on the FDTD method were performed at 400 MHz and 470 MHz which
includes the operating band of the evaluated antenna. The simulation code employed was XFDTD,
version 7.3 by Remcom Inc., State College, PA. The exposed subject was modeled by a
heterogeneous full body model standardized for SAR evaluation according to the IEC/IEEE 62704-2
draft standard [12].

The half-wave dipole antenna and maximum radiated power were used to represent the exposure
condition. At each frequency, two individual simulations representing the exposure from the front and
back at 40 cm distance from the dipole were conducted. No losses other than dissipation of RF energy
inside the human body were assumed in the FDTD modeling, which provides an extra degree of
overestimation.

Table 30: Whole-Body Average SAR Results on page 100

 presents the whole-body average SAR

results for the simulated conditions at. To account for the actual measured antenna gain of 4.1 dBi
which is higher than the half -wave dipole gain by factor of 1.57 the whole-body average results were
scaled by that factor and are present in a separate column as adjusted whole-body SAR values
alongside.

Table 30: Whole-Body Average SAR Results

1

400

Front

0.010

0.016

MN003557A01-AA
Appendix E: MOTOTRBO Repeater EME Assessment

100  

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