Elements of Radio Frequency Energy Harvesting and Wireless Power Transfer Systems

This book focuses on elementary concepts of both radio frequency energy harvesting (RFEH) and wireless power transfer (WPT), and highlights their fundamental requirements followed by recent advancements. It provides a systematic overview of the key components required for RFEH and WPT applications and also comprehensively introduces the pioneering research advancements achieved to date. The state-of-the-art circuit design topologies for the two different applications are presented mainly in terms of antenna operating frequencies, polarization characteristics, efficient matching network circuits, rectifier topologies, and overall rectenna systems. The book serves as a single point of reference for practicing engineers and researchers searching for potential sources and elements involved in the RFEH system as well as in the WPT system, and need rapid training and design guidelines in the following areas:

? Different sensing elements used in RFEH and WPT

? Inclusions of mathematical expressions and design problems

? Illustration of some design examples and performance enhancement techniques

PART A Elements of RF Energy Harvesting (RFEH)Systems

Chapter 1 Introduction..........................................................................................3

Chapter 2 Antennas for RFEH Systems.............................................................. 11

Chapter 3 Rectifiers for RFEH Systems.............................................................. 33

Chapter 4 Rectennas for RFEH Systems............................................................. 51

PART B Elements of Wireless Power Transfer (WPT) Systems

Chapter 5 Antennas for WPT Systems................................................................69

Chapter 6 Rectifiers for WPT Systems................................................................89

Chapter 7 Rectennas for WPT Systems............................................................. 111

Chapter 8 Matching Networks........................................................................... 123

Chapter 9 Some Applications............................................................................ 143