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Full Description
Reflect array antennas refer to the class of radiating structures that are comprised of an array of radiating elements, re-radiating the energy that is impinged on them from one or more radiating feeds that are located in free space. The constituent radiators that build a reflect array can be shaped to bring about some flexibility in the way that antenna operates such as multi band/polarization operation. The printed nature of these elements allow integration of active elements that can further enhance the functionality of the reflect array. This allows for capabilities such as power amplification, adaptive beam shaping, and beam switching. This resource presents readers with design guidelines along with an ample amount of material on different types of reflect arrays and methods of analysis. This book begins with introductory material on reflect array antennas and progresses to the presentation of state-of-the-art research in the field. A direct comparison with conventional reflector antennas is provided, focusing on conventional efficiency figures of reflectors.Moreover, this book offers remarks on the future direction of reflect array research and also potential applications of the technology in face of the emergence of new fabrication techniques to accommodate both passive and active elements.
Contents
General Design Equations; Resonant Cell Elements; Multi-band Reflectarray; Applications; Danwidth Limitation; Loss Performance; Antenna-Filter-Antenna Transmitarray; Mechanical Techniques; Reflectarray Fabrication Technologies; Future Directions.
