Description: This book explores the latest advancements and innovative trends in antenna and RF design that are shaping next-generation communication systems. It covers smart antennas, MIMO technology, reconfigurable surfaces, and millimeter-wave designs essential for 5G and beyond. The content emphasizes compact, energy-efficient, and high-performance designs that support faster data rates, wider bandwidth, and seamless connectivity. It also discusses simulation tools, fabrication techniques, and AI-driven optimization methods. A valuable resource for researchers, engineers, and students, this book highlights how cutting-edge antenna and RF technologies are driving the evolution of wireless communication networks worldwide.