FDTD analysis of capsule dipole antenna in digestive system of human body

Abstract

The transmission factor from a capsule dipole antenna located in a digestive system of human body to the outside are investigated using the FDTD analysis. It is found that the peak values of the transmission factor are observed in a frequency range of 400–600 MHz for different organs of digestive system. High received power was obtained when a transmitting antenna and a receiving antenna have the same polarization. Received power was compared with different impedance matching conditions.