Compact Slot Array Antennas for Wireless Communications

Description

This book describes and provides design guidelines for antennas that achieve compactness by using the slot radiator as the fundamental building block within a periodic array, rather than a phased array. It provides the basic electromagnetic tools required to design and analyse these novel antennas, with sample calculations where relevant. The book presents a focused introduction and valuable insights into the relevant antenna technology, together with an overview of the main directions in the evolving technology of compact planar arrays. While the book discusses the historical evolution of compact array antennas, its main focus is on summarising the extensive body of literature on compact antennas. With regard to the now ubiquitous slot radiator, it seeks to demonstrate how, despite significant antenna size reductions that at times even seem to defy the laws of physics, desirable radiation pattern properties can be preserved. This is supported by an examination of recent advances in frequency selective surfaces and in metamaterials, which can, if handled correctly, be used to facilitate physics-defying designs. The book offers a valuable source of information for communication systems and antenna design engineers, especially thanks to its overview of trends in compact planar arrays, yet will also be of interest to students and researchers, as it provides a focused introduction and insights into this highly relevant antenna technology. Front Matter ....Pages i-xxxi Evolution of Compact Slot Antennas (Alan J. Sangster)....Pages 1-33 Fundamentals of Electromagnetic Radiation (Alan J. Sangster)....Pages 35-56 Compact Aperture Antennas (Alan J. Sangster)....Pages 57-80 Computational Modelling Techniques for Slot Antennas (Alan J. Sangster)....Pages 81-100 Moment Method Models of Compact Slot Antennas (Alan J. Sangster)....Pages 101-129 Resonant and Non-resonant Linear Slot Arrays (Alan J. Sangster)....Pages 131-149 Conventional Waveguide-Fed Travelling-Wave Slot Arrays (Alan J. Sangster)....Pages 151-178 Frequency Scanned and Leaky-Wave Linear Slot Arrays (Alan J. Sangster)....Pages 179-214 Compact Planar Reflectarrays (Alan J. Sangster)....Pages 215-241 Compact Planar Resonator Arrays (Alan J. Sangster)....Pages 243-283 Retro-directive Compact Array Antennas (Alan J. Sangster)....Pages 285-303 Back Matter ....Pages 305-350