As the capacity of a personal computer and workstation increases rapidly, many electromagnetic simulators solving antenna problems are widely used. In this paper, the IE3D and FIDELITY electromagnetic simulators, which are commercial software products, are applied to the analysis of handset antennas in the vicinity of the human body. The IE3D and FIDELITY simulators are based on the methods of moment and FDTD (Finite Difference Time Domain) method, respectively. Basic characteristics including the human body's effect of a popular built-in antenna for handset such as PIFA (Planar Inverted-F Antenna) are obtained by the IE3D and FIDELITY electromagnetic Simulators and calculated results are compared with measured results. In a result, calculated results by the IE3D and FIDELITY electromagnetic simulators are in good agreement with measured results and it is confirmed that these simulators are very effective in analyzing the handset antenna in the vicinity of the human body.
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