A Practical Solution to Enhance Electromagnetic Transmission to an Implantable/Wearable Antenna

This paper presents a possible solution to enhance electromagnetic transmission to an implantable/wearable device in wireless power transfer systems. Based on an analytical approach we have developed, we show how it is possible, using wearable dielectric cylindrical scatterers, to increase the intensity of the transmitted field to a possible receiver, which may be arranged in the textile fabric of a garment or implanted in the underlying biological tissue. In particular, we show some parametric studies on the dielectric constant of scatterers, which can be easily integrated into a fabric, showing which configuration achieves the greatest increase in electromagnetic transmission. The electrical parameters of the biological and textile tissues are considered in the millimeter frequency range ($f=24\ \text{GHz}$).