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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)...
In recent years, body-centric wireless communications become an active area of research due to their various applications such as e-healthcare, support systems for specialized occupations, and personal communications. Since the candidate frequencies for body-centric wireless communications widely range from MHz to GHz, dielectric properties of the human body tissues, relative dimensions of the human...
Small implanted devices have been investigated with great interest for wireless medical applications due to the promise of different clinical usages in order to promote patient's independence. In these implanted device systems, an antenna plays an important role as a part of transmitting and receiving power. There are several issues to consider while designing an in-body antenna, including power consumption,...
Antennas and the propagation characteristics for body-area networks have become an active area of research. In this paper, a cavity slot antenna is proposed for onbody communications at 2.45 GHz. First, the antenna characteristics (input impedance, radiation pattern, and efficiency) are calculated by the finite-difference time-domain method. The results show that the proposed antenna has a relatively...
In this paper, the cavity slot antenna with the H-shape slot was proposed for the implanted antenna. Numerical results show that the proposed antenna resonates well at 2.45 GHz. In order to simplify the measurement, the antenna is fabricated using the scale model which is 2.5 times larger than original dimension of the antenna. The antenna characteristics are measured in the developed 2/3 muscle-equivalent...
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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