Fresnel Zone Antennas

This is a research monograph on Fresnel zone antennas. Unlike the conventional reflector and lens antennas, the focusing effect in a Fresnel zone antenna is achieved by controlling the phase shifting property of the surface rather than its shape, thus allowing flat or arbitrary configurations. Other advantages of these include low manufacturing and installation cost and ease of packaging. The material presented is mainly drawn from the theoretical and experimental work published and unpublished by the authors. The book contains a wealth of unusual antenna configurations, first hand experimental results, and a large number of equations useful in the research, analysis and design of Fresnel zone antennas.