Jung, Ji-Hyun Kim, Sang-Wook Kim, Young-Sik Kim, Se-Yun 2024-01-20T19:30:58Z 2024-01-20T19:30:58Z 2021-09-02 2010-05 0018-926X https://pubs.kist.re.kr/handle/201004/131487 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. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC DIELECTRIC-PROPERTIES BIOLOGICAL TISSUES RADIATION MHZ Electromagnetic Propagation From the Intestine-Ingested Source in the Human Body Model Article 10.1109/TAP.2010.2044338 1 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.58, no.5, pp.1683 - 1688 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 58 5 1683 1688 scie scopus 000277339900027 2-s2.0-77951996578 Engineering, Electrical & Electronic Telecommunications Engineering Telecommunications Article DIELECTRIC-PROPERTIES BIOLOGICAL TISSUES RADIATION MHZ Capsule endoscope electromagnetic propagation FDTD human body surface wave