This book represents the theory of microstrip patch antenna (MPA). Firstly it includes fundamentals of microstrip patch antennas and interpretation of various results. Secondly Authors throw light on the parametric study of MPA and implementation tool. Finally Designing of different MPA with respect to its basic shapes and comparison of models has been presented. This book will be the useful guide for graduate postgraduates and researchers who want to pursue their bright career in antenna and wave propagation field.