ORAMA - A Computer Tool for Linear Antenna Array Design

The progressive improvement of the feed networks and the continuous reduction of their cost have permitted the usage of nonuniform antenna arrays with fewer difficulties. One of the promising methods for the design of the above nonuniform antenna arrays is the Orthogonal Method (OM). ORAMA is a computer tool based on OM and designed for synthesis of linear antenna arrays on the Microsoft Windows platform. OR.A.M.A comes from the initials of the words ORthogonal Advanced Method for Antennas. ORAMA, spelled ORAMA, is a Greek word meaning vision. In the present version mutual coupling between elements of the arrays is not taken into account. However with ORAMA excellent pattern predictions for different element types can be made. The antenna array can be designed for different types and positions of the elements, depending on the needs. Elements such as dipoles, microstrips, horns etc are common in most wireless applications. In the current version parallel and identical elements are taken into account. In this paper the simplicity of the procedure for a set of interesting applications will be presented.