“Surface Wave Guiding Systems for Wireless Power Distributed Propagation”

The development of wire-free devices has recently obtained the interest of the industry due to their green energy and compact features. WPT at microwave frequencies is commonly used to implement these systems for many different applications, such as battery charging, energy harvesting or device-to-device communications. The use of guided SWs instead of free-space propagation is getting more attention from the scientific community. This is due to the advantages that SWs can provide in comparison to the near-field and free-space propagation, e.g. their higher transmission efficiency at high frequencies and large distances. The design and experimental verification of a novel system for microwave frequencies based on the controlled propagation and distribution of surface wave (SW) modes confined in a guiding surface for wireless power transmission (WPT) applications is presented. Moreover, the study of SW modes orthogonally crossing in the substrate will also be briefly explained.