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Small implantable devices have been investigated with great interest for wireless medical applications because of the promise of different clinical usages in order to promote patient's independence. In these implanted device systems, the antenna plays an important role as a part of transmitting and receiving power. Therefore, the research on the antennas for implantable devices (implantable antennas)...
Since the diversification of the electromagnetic (EM) environment is spreading, it is essential to estimate the EM energy absorption rate [specific absorption rate (SAR)] of a pregnant woman's body and her fetus under various exposure situations. For example, if pregnant women work in jobs where they might wear business portable radios around their abdomens, they should also be concerned about this...
This paper presented evaluation of electromagnetic (EM) energy absorption rate in terms of a specific absorption rate (SAR) in a fetus that was exposed to the EM wave from a portable radio terminal when used in the vicinity of the maternal abdomen. As for the numerical calculation, the electric fields around the antenna were analyzed by the finite-difference time-domain method. We considered analyzing...
In this paper, the SAR distribution in the fetus was calculated using the numerical model of the pregnant woman by the NHA with the metallic case at 150 MHz. As a result, it has confirmed that the SAR of the NHA at 150 MHz in deep region of the maternal body (y ges 80 mm) is higher than that of the half-wave dipole antenna at 2 GHz. In addition, it has confirmed that the fetus averaged SAR is 38%...
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