This book addresses the design and analysis of different reflectarrays and transmitarray antennas to meet these requirements. A reflectarray is made up of an array of radiating elements that provide a preadjusted phasing to form a focused beam when it is illuminated by a feed, in a similar way to a parabolic antenna....

A hundred garden favorites rendered in black-and-white line illustrations will suggest numerous design and artistic uses to artists, designers, craftsmen, needleworkers. Amaryllis, anemone, begonia, cinquefoil, peony, snapdragon flow and weave, many forming borders and frames. All drawings royalty-free....