Mobile Antenna Matching Study Considering Different Holding Positions at 2100 MHz Frequency

The purpose of the present research is to study mobile phone Dipole antennas' matching to a free space with a variety of human hand (fingers) positions in case of different positions of the human head and the headset; Since the hand, holding the mobile phone, absorbs a big part of emitted energy during EMF exposure process and therefore, affects antenna matching conditions, it was great importance to estimate the SAR values in the human head, and to investigate the dependency between SAR and S
₁₁
coefficient (antenna matching parameter). The EMF in near and far zones and reradiated power are also studied. Numerical simulation is conducted on realistic nonhomogeneous human head and hand models by the FDTD (Finite Difference Time Domain) Method at 2100 MHz standard frequency.