Introduction

This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book introduces some key features of magnetic resonance imaging. It focuses on human motion capture. The book outlines the approaches to the electromagnetic optimization of antennas and wireless links for battery‐free brain implantable devices where the wireless powering and data transmission are based on inductive coupling, far‐field radiation, and platforms integrating both approaches. It discusses tools and techniques for in vitro and in vivo testing of implantable antennas as well as the common materials used for fabricating them. The book addresses the UWB channel characteristics for an application of transplanted liver monitoring after an operation using liver‐implanted wireless devices in an example case scenario. It describes an in‐depth operation of inductive power transfer for the biomedical applications. The book discusses the recent advances in minimally invasive microwave ablation antenna designs.