Experimental In-Body to On-Body and In-Body to In-Body Path Loss Models of Planar Elliptical Ring Implanted Antenna in the Ultra-Wide Band

This paper presents in-body to on-body and in-body to in-body channel models of a planar wideband elliptical ring implanted antenna in the lower part of Ultra-WideBand (UWB, 3.1 to 5.1 GHz). The results are verified inside a practical UWB liquid phantom with the help of a wideband on-body monopole antenna. Moreover, the design principle of the in-body and on-body antennas, as well as their simulated and measured reflection coefficients are presented. The channel characterization inside the lossy medium gives a deep insight of wireless capsule endoscope technology (WCE) and helps to evaluate the radiation performance of the previously designed planar elliptical ring implanted antenna.

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