Synthetic-Functions Decomposition of Large Complex Structures

The synthetic function expansion (SFX) technique, previously introduced by the authors has been successfully applied to the analysis of various types of antennas, inter-antenna coupling and antenna farm problems. The technique begins with breaking a large structure into smaller portions; the emphasis here is on the aspects specific to the applications where a (large) conducting body has to be "cut" into several "pieces"; the body may be solid (like a satellite body, a ship or an aircraft) or thin (e.g. a reflector or a plate), and can either be excited by an antenna placed on the structure (as in satellite problems, or antenna siting issues) or near it, or by an incident wave. The aim of the analysis is to discuss how to manage the cases when long cuts are present for the considered structures, and to address some "optimum" issues in the breakdown of the structure in smaller blocks