Millimeter-wave power absorbed into rabbit eye due to different exposure environments

Many millimeter-wave exposure experiments using animals have been performed in order to investigate the possible health effects in the past but a few of them could provide dosimetry analysis. In this paper, we apply the Poggio-Miller-Chang-Harrington-Wu-Tsai method of moments to investigate differences in the absorbed power distribution due to three different exposure conditions; a rabbit head phantom exposed to an electromagnetic (EM) plane wave, and that exposed to EM fields radiated from a horn or a dielectric lens antenna at 40 GHz. We determined the power density absorbed into the region of the rabbit eye for each situation. The results showed that the dielectric lens antenna can be used to illuminate effectively the rabbit eye. It was found that nearly 65% of EM power applied into the antenna port can be effectively delivered to the rabbit eye.