Miniaturized Patch Antenna Design for WBAN Applications is a comprehensive exploration of the design, optimization, and implementation of patch antennas tailored specifically for Wireless Body Area Networks (WBANs). The book begins by providing a thorough introduction to WBANs, highlighting their significance in healthcare monitoring, sports performance tracking, and various other applications where continuous, unobtrusive monitoring of physiological parameters is crucial. It discusses the unique challenges posed by WBANs, such as the need for compact, lightweight, and low-power antennas that can operate efficiently close to the human body. Moving on, the text delves into the fundamental principles of patch antenna design, covering topics such as antenna theory, electromagnetic theory, and impedance matching techniques. It then progresses to more advanced concepts, including miniaturization techniques, such as fractal and metamaterial-based designs, which are essential for achieving compact form factors suitable for integration into wearable devices. The book also explores the latest advancements in materials and fabrication techniques.