Ultra Light Carbon Phantom for RF measurement of mobile terminals in browsing and jogging positions

Measurement of radio frequency (RF) radiation performance has been investigated for mobile terminals including the influence of the human body. As presented by smart-phone growth, mobile terminals are used not only in talk but also various other positions such as browsing, jogging, and so on. Therefore, a phantom corresponding to various positions needs to be included in the evaluation of the RF performance of a mobile terminal. Then, a lightweight tissue-equivalent phantom, Ultra Light Carbon Phantom (ULCP^®), consisting of a head, hands, arms and body above the abdomen, for application to three-dimensional (3-D) RF radiation measurement is developed. In this paper, the development and evaluations of the ULCP in browsing and jogging positions are presented. The RF performances of a dipole antenna and a mobile terminal with the ULCP are evaluated in comparison with a test subject. Finally, it is confirmed that the ULCP is useful for mobile terminal tests including the influence of the human person.