Cselt-centro Studi E Laboratori Telecomunicazioni S.p.a.

Salvatore Contu

Paolo Bielli

Giuseppe Cocito

Carlo Arduini

Ugo Ponzi

Antonio Castellani

Renato Barboni

Daniele Bresciani

A method of manufacturing dichroic antenna structures, which makes use of a projector mounted on the mobile arm of a computer-controlled machine to project the shape of selective antenna elements on the surface of an insulating layer, clad with a metallic layer covered in turn with a photographic emulsion. Development and chemical etching of the excess conductive parts are then carried out.

Method of making a dichroic antenna structure

This structure for a dichroic antenna can be used in a reflector antenna capable of operating at the same time at two different frequencies or with two orthogonal polarizations, and presents mechanical characteristics allowing its use on board the satellites. The structure, suitable for a subreflector, comprises a plurality of layers with high mechanical stiffness in the external part, followed by layers with low dielectric constant and one or a plurality of metallic grids in the most internal part, separated by low-dielectric constant layers.

Structure for a dichroic antenna

Growing community of inventors

Pecetto Torinese, Italy

Salvatore Contu