PROJECT TITLE :
The interaction between the human head and handset antennas desires to be taken into consideration, since mobile phones need to be purposeful, and, at the identical time, guarantee biological compatibility. This analysis analyzed the performance of many handset antennas with completely different slotted ground planes in free area and also in the presence of the human head. The most objective was to compare the measured bandwidth and efficiency in both environments (free house and human interaction), and also the impact on the measured SAR (Specific Absorption Rate) of such antennas as functions of the slot configuration in the ground plane and the antenna's location. Results showed that slots could be useful for increasing bandwidth and efficiency while keeping similar SAR values compared to the non-slotted ground plane. Changing the antenna's location was a sensible method to achieve a significant SAR reduction. In some cases, when the antenna was at the lower edge of the ground plane (down position), the SAR may be reduced by a issue of two. Impedance, potency, and radiation patterns were measured and analyzed with a phantom head in order to perceive the human head's effect on the antenna's performance. Although all antennas suffered from changes, shorted-end slots were more strong for human interaction than open-ended slots.
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