Preface

Due to the features of circular polarization, circularly polarized antennas are very useful for various wireless systems such as satellite communications, global navigation satellite systems, mobile communications, wireless sensors, radio frequency identification, wireless power transmission, wireless local area networks, wireless personal area networks, worldwide interoperability for microwave access and direct broadcasting service television reception systems. Recent decades have seen a lot of research and development activities in CP antennas from industries and institutes worldwide. There are very few books focusing on CP antenna design and principles. Thus, there is a need for a comprehensive book which presents basic principles and up-to-date developments of CP antennas and arrays.

The purpose of this book is to present a comprehensive overview of various types of CP antennas and arrays, including the basic principles, design methods, size reduction techniques, broadband techniques, multi-band techniques, array design techniques and recent developments, as well as their applications and case studies. This book can be used as a reference book for graduate students, academics, researchers and antenna engineers. It includes up-to-date developments from industry and academic research experts worldwide, and numerous CP antenna design examples are illustrated.

The book is organized into six chapters. Chapter 1 introduces the reader to basic concepts of antenna parameters ...

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