Addressed to industrial designers engaged in the numerical modelling of surfaces comprising printed arrays of conducting elements that respond to selected frequencies of electromagnetic radiation. Such material is now common in the doors of microwave ovens and antenna systems for fixed and mobile communication services. Discusses single- layer and multilayer, planar, finite and infinite extent, and curved types; a model transmission line approach for analysis; and planar periodic structures. Double spaced. Annotation c. by Book News, Inc., Portland, Or.