Equivalent circuit modeling of various miniaturized antennas for wireless capsule endoscopy (WCE) applications

Abstract This article presents different equivalent circuit modeling of miniaturized wireless capsule endoscopy (WCE) antennas. Here, three heterogeneous WCE antenna designs have been considered for the case study purpose in embedded and conformal architecture format. These WCE antennas are unique in respect to their designs, substrate material, characteristics, implementation of fractal geometries, etc. To understand the insight device physics of the structure the two independent modeling approaches (TL-based and CLR-based) are presented here without much complicated mathematical calculations. Additionally, the quad Cole-Cole model is discussed for parametric representation in different types of dispersion for biological tissues. Finally, a comparison table is given with TL-based modeling and CLR-modeling of three antennas.