2017 Volume 6 Issue 6 Pages 286-291
In this paper, measurements of a dipole antenna in deionized water and human body equivalent liquid were performed, and the measured results are compared with the numerical analysis. The dispersive characteristics of relative permittivity and conductivity of human body equivalent liquid were considered in the FDTD analysis. To evaluate the antenna characteristics in the broadband frequency range, the S-parameter method was used. The input impedance and the transmission coefficient obtained in the numerical analysis and measurement were shown to be in good agreement. The reliability of both measurements and analysis were confirmed. These methods are useful to the design of capsule antennas.
