An Overview of Technical Challenges and Advances of Inductive Wireless Power Transmission

TLDR

Inductive coupling is the most common operating principle for wireless power transmission, owing to its high efficiency and substantial energy transfer capability. The paper examines technical challenges and trends in inductive magnetic coupling for low‑ and high‑frequency wireless power transmission, especially for smart object applications, and reviews relevant applications and research projects addressing these issues. The authors discuss challenges and trends for implementing WPT in these applications and present research projects that have tackled these problems.

Abstract

This paper focuses on the actual technical challenges that must be addressed in the field of inductive magnetic coupling at low-frequency (LF) and high-frequency (HF) bands for wireless power transmission (WPT), with special focus on smart objects applications. Inductive coupling is the most common operating principle for WPT, because of the high efficiency and the relatively high amount of energy that can be transferred. This paper will present some important applications that can benefit from this technology. Some of the actual challenges that must be addressed for a proper implementation of WPT in the mentioned applications as well as the actual trends will be discussed. Finally, research projects that have successfully dealt or are currently dealing with these problems will be presented.