Design of an Implantable Antenna for Wireless Communication of Ingestible Capsule Endoscope

This paper proposes a design for an implantable antenna operating in the Medical Device Radio communications Service (MedRadio) (401-406 MHz) band for wireless capsule endoscopy (WCE). Simulation results show the proposed antenna has good performance in terms of return loss, a bandwidth of 310 MHz to 580 MHz and a maximum realised gain of -31.3 dB. The simulated radiation pattern of this antenna is omnidirectional. The tolerance of the antenna owing to bending and different capsule shell thicknesses is also investigated and indicates that the proposed antenna is an excellent candidate for WCE applications.