Radiation patterns emitted froma long-termevolution (LTE) base station antenna were first simulated by the finite-difference time\ndomain (FDTD) method. The validity of simulation results of radiation patterns was further checked by measurement data. After\nvalidating the accuracy of the FDTD method, electric fields at 123 test sites around a LTE base station in an urban area of Taipei\nCity were simulated. Simulated electric fields were also validated by comparison with measured data obtained by a high frequency\nselective radiation meter with an isotropic E-field probe. Simulated and measured electric fields are in the range of 0.104ââ?¬â??1.182 and\n0.098ââ?¬â??1.179 V/m at 1795MHz, respectively. From obtained electric field strengths, it is ensured that the urban area is a good signal\nenvironment. The maximum power density emitted from the LTE base station is about 1.853 Ã?â?? 10?4 mW/cm2 and is thus far below\nthe safety standard value of 1.197mW/cm2 for human exposure to RF radiation at 1795MHz.
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