The escalating demand for advanced communication, sensing, and scanning systems across various applications as well as the urgency to comprehend the complexities of RF Frontend systems is more pronounced than ever. At the heart of this challenge lies the reconfigurability feature, playing a vital role in shaping the current trajectory of wireless technologies. The book Radar and RF Front End System Designs for Wireless Systems delves straight into this pressing issue and examines the relentless pace of innovation spurred by a myriad of configuration and design architectures. While these advancements hold great promise, they also introduce challenges that warrant thorough examination. Within the pages of this publication, a narrative unfolds that transcends theoretical discourse. The book offers a unique opportunity for academic scholars, researchers, and industry professionals to not only understand the intricacies of RF Frontend systems but also to grapple with the practical challenges posed by their rapid evolution. It becomes a guide in navigating this dynamic landscape, providing a deep exploration of the issues at hand and paving the way for informed solutions and breakthroughs. Amidst the intricacies of RF Frontend systems, the publication strategically unfolds its content across four key sections. These sections encompass RF Frontend Antenna Systems for wireless applications, Radar and Antenna Systems design and modeling, the Impact of AI/ML in Frontend System Design and Applications, and Test and Measurement for Frontend system designs. Each section serves as a gateway for scholars and professionals to delve deeper into these critical areas, providing not only theoretical insights but also practical applications that bridge the gap between academic understanding and real-world challenges.