| （英） |
In recent years, radiofrequency devices, which are usually placed in the vicinity of the human body, are widely used. In addition, these devices are used around human body in various situations. Therefore, the evaluation of the interaction between electromagnetic waves and the human body, which is radiated by the devices, is indispensable. The interaction is generally estimated from numerical simulations and experimental evaluations. In these evaluations, biological tissue-equivalent phantoms, which are adjusted to have the same dielectric constants of human tissues, are usually used. Until now, various investigations have been made on phantoms. However, most of these previous studies have focused on phantom for VHF (Very High Frequency) band and above. Therefore, it is necessary to develop phantoms for HF band. In this study, phantoms for HF band are fabricated and dielectric constants in HF band of phantoms are measured by using impedance analyzer. |