Microwave is a form of electromagnetic radiation. Microwaves have various applications in modern technology. It is extensively used in non-broadcast, point-to-point communication. They are more easily focused into narrower beams, have higher frequencies allowing broad bandwidth, and require smaller antennas. Microwaves are also used in satellite and spacecraft communication. Most of the telephone, TV and data communications are transmitted using microwaves. It is also widely used in microwave ovens and radar technology. Other uses of microwave include medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial heating and collision avoidance systems. This book unravels the recent studies in the field of microwave systems. There has been rapid progress in this field and its applications are finding their way across multiple industries. Students, researchers, experts and all associated with microwave systems will benefit alike from this book.