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Electromagnetic Propagation From the Intestine-Ingested Source in the Human Body Model

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4 Author(s)
Ji-Hyun Jung ; Korea Inst. of Sci. & Technol., Seoul, South Korea ; Sang-Wook Kim ; Young-Sik Kim ; Se-Yun Kim

Electromagnetic fields radiated from an intestine-ingested source in the human body model are calculated using the finite-difference time-domain (FDTD) method. The propagation characteristics of the vertically polarized components of the electric fields at the receiving points vertically placed on the model surface are analyzed in the frequency range of 100 MHz to 700 MHz. As the receiving point moves away from the ingested source, the received electric fields show relatively lower attenuation above 400 MHz and generate an unusual dip pattern at a particular frequency below 400 MHz. The above two interesting features may occur due to the surface wave propagating along the boundary of the human body model. The effects of the surface wave are illustrated clearly in the homogeneous circular cylinder as a simplified model of the human body.

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Antennas and Propagation, IEEE Transactions on  (Volume:58 ,  Issue: 5 )