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Ultra Light Carbon Phantom hand for RF performance evaluation of mobile terminals

Measurement of radio frequency (RF) radiation performance has been investigated for mobile terminals including the influence of the human body. Recent studies have shown that the user's hand has a greater influence on antenna radiation performance than the head. Therefore, a hand phantom needs to be included in the evaluation of the RF performance of a mobile terminal. We developed a lightweight tissue-equivalent phantom, Ultra Light Carbon Phantom (ULCP®), consisting of a head and upper body, for application to three-dimensional (3-D) RF radiation measurement. In this paper, the development and evaluations of the hand of the ULCP is presented. The RF performances of a dipole antenna and a mobile terminal with the ULCP hand are evaluated in comparison with a number of human test subjects. Finally, it is confirmed that the ULCP hand is useful for mobile terminal tests including the influence of the human hand.