About the book
This book will focus on the development and applications of battery-powered devices that are facing unprecedented technical challenges. The wireless power transfer (WPT) offers a new way to the energy acquisition for electric-driven devices, thus making it less dependent on the battery.
This book will also discuss Rectenna (rectifying antenna) systems that can be used for remotely charging batteries in several networks such as internet of things (IoT) applications. IoT is commonly used in smart buildings, implanted medical devices and automotive applications. Rectenna is also used in converting RF energy to usable DC electrical energy. Moreover, massive Multiple Input-Multiple Output (MIMO) systems have been gaining significant attention and promise as a very good candidate to improve spectral efficiency and consequently increase the channel capacity in multi-user networks. Massive MIMO is a scalable technology through which large numbers of devices can simultaneously communicate through the entire allocated spectrum.
This book will discuss the urgent needs of advanced signal processing schemes that improve the power and the spectral efficiencies. Digital beamforming using an array of antenna elements is one such technique. The book will also discuss topics such as: antennas for 5G handsets, it will present a quick understanding and an overall picture on the major antenna designs and considerations in the fifth generation mobile communications (5G) cellular phones. Finally, mutual coupling effect is considered a serious problem in different antenna systems, i.e. MIMO antennas. Mainly this problem occurs if the antenna elements are located very closely to each other. This publication will be able to offer different mutual coupling reduction techniques as a solution to this problem.