Microwaves are electromagnetic radiations with varied wavelengths. These waves are used for point-to-point telecommunications, navigation, radar, heating and power application, radio astronomy and spectroscopy. Microwave engineering aids the manufacturing and design of components, circuits and systems for deploying different technologies. Some of the frequently used technologies in this field are antennas, transmission lines, measurements, remote sensing, etc. This book presents researches and studies performed by experts across the globe. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. It will help the readers in keeping pace with the rapid changes in this field. This text attempts to assist those with a goal of delving deeper into the subject of microwave engineering and technology. It will benefit researchers, professionals and students alike.