The use of circuit simulators for array-pattern modeling and optimization

The purpose of this note is to describe the use of circuit simulators for the modeling, display and optimization of antenna array patterns. A particularly useful feature of such programs is the optimization facility. The examples given here are based on HP EEsof´s Touchstone, which the author has used previously for this purpose, but other packages probably have similar features. Only a summary of the technique is given, and some familiarity with array theory and circuit simulators is assumed