抄録
Until now, the 700 MHz band has been used for the field pickup unit (FPU), which is used for the live broadcasting of events, such as marathons and long-distance relay races. However, the frequency band is slated to migrate to 1.2 and 2.3 GHz bands based on an action plan for radio spectrum reallocation developed by the Ministry of Internal Affairs and Communications, Japan. With the frequency migration of the FPU, the size of transmitting antennas can be downsized. Therefore, 1.2 and 2.3 GHz band antennas can also be mounted on wireless cameras for professional-use. In this study, we measured the specific absorption rate (SAR) on the body of the operator exposed to electromagnetic waves radiated from the transmission antenna of the wireless camera via a 1.2 GHz band. We also calculated the SAR to confirm the validity of the measurement method, and we compared the measured results with the calculated ones. As the result, SAR distributions between the measured and the calculated results were nearly identical. It is thus possible to evaluate the SAR using the method suggested in this paper.
