Contraves Italiana

Francesco Alia

Gianfranco Ruggerini

Stefano Barbati

A reflector antenna is disclosed which generates two or more beams which are separated angularly in the elevation plane, as in multi-beam antennas, and are shaped so as to provide, when combined, any desired pattern of coverage. The antenna includes a horn which receives separated inputs and radiates toward a reflector primary beams displaced from one another by a predetermined angle but having a single phase center.

Multi-shaped-beam reflector antenna

An integrated radar antenna array consists of a first antenna, in which an exciter is positioned at a focal length of a double curvature reflector with different height and width dimensions to generate a first directional radiation pattern, and a second antenna comprising the reflector of the first antenna and a plurality of micro strip surfaces fitted to the double curvature of the reflector and suitably secured thereon. The radiating micro strip surface is positioned on the reflector at a distance d=K.lambda./2 where .lambda.=wavelength of the exciter frequency and K can be 0,1,2,3 . . . n.

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Rome, Italy

Francesco Alia