Thomson-csf

Yves Commault

Francois Gautier

Robert Pierrot

Yves Campan

Jacques Roquencourt

Georges Bonnet

Alain Sehan

An antenna having a 'suspended stripline' structure with two metal plates encircling a dielectric film is disclosed. In this structure, a channel is made for a feeder of a slot with the end of a central conductor of the line penetrating a cavity whose thickness is approximately equal to that of the channel. The slot is made in the upper wall of the cavity.

Slot hyperfrequency antenna with a structure of small thickness

The present invention provides phased arrays using monolithic technology of diffusions over whole wafers for working in millimetric wave frequency bands. The reflector array includes a plurality of metallizations connected together by diodes whose capacity can be varied. Thus direct control of reactive impedances is obtained. With the metallized strips placed at a distance substantially equal to .lambda./4 from a ground plane, it is possible to control locally the phase of the reflected signal.

Phased reflector array and an antenna including such an array

Inverse Cassegrain antenna making it possible to use on the one hand the qualities of a conventional fine beam for look-out and tracking functions and making it possible on the other hand to have a widened beam either in the elevation plane or in the bearing plane. According to one embodiment, this antenna is provided with a mirror constituted by two reflector - polarizer elements joined to one another by a hinge which permits the articulation thereof, a remote control device regulating their relative orientation.

Inverse cassegrain antenna for multiple function radar

The invention covers transition devices between a coaxial line and a wave-guide. The central core of the coaxial line enters a transverse partial partition in the wave-guide through an opening in it. The core continues in the wave-guide at the level of the partial partition and promotes the passage from an odd TEM type mode to an even, type TE 10, mode and vice versa.

Growing community of inventors

Paris, France

Yves Commault