As the capacity of a personal computer and workstation increases rapidly, many electromagnetic simulators solving antenna problems are widely used. However, the simulators are not perfect for analysis, and users need to have an adequate experience and know-how about the simulators. In this paper, the IE3D, FIDELITY and HFSS electromagnetic simulators, which are commercial software products, are applied to the analysis of handset antennas in the vicinity of the human body. The IE3D, FIDELITY and HFSS electromagnetic simulators are based on the methods of moment, FDTD (Finite Difference Time Domain) and FEM (Finite Element Method), respectively. Basic characteristics including the human body's effect of a popular small antenna for handset such as PIFA (Planar Inverted-F Antenna) are obtained by the IE3D, FIDELITY and HFSS electromagnetic simulators, and the calculated results are compared with the measured results. In a result, the calculated results by these three kinds of electromagnetic simulators are in good agreement with the measured results and it is confirmed that these simulators are very effective handset antenna in the vicinity of the human body.
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