User's Impact on PIFA Antennas in Mobile Phones

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Executive Summary

When mobile phones are used in close proximity with the human body, this results in a detrimental effect in its communication performances. While it was shown that a SAM (Specific Anthropomorphic Mannequin) phantom can well represent the user's upper torso in average sense, the hand modelization still encounters some practical difficulties. Though some standardization bodies have already proposed some preliminary hand phantoms, they utilize a hand grip that is not supported by grip studies.

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