Thales

Alcatel

Patrick Martineau

Regis Lenormand

Antonin Hirsch

Jean-Francois David

Jose Ignacio Herranz-Herruzo

Alejandro Valero-Nogueria

Florent Lebrun

Laurence Laborde

Jean-Jacques Berthelier

Paul Vincent

Karine Caire

Valérie Erbland

Alejandro Valero Nogueria

José Ignacio Herranz

An antenna reflector compatible with applications at high frequencies between 12 and 75 GHz and suitable for a paraboloidal or ellipsoidal geostationary space environment comprising a reflective face to focus electromagnetic radiation, comprises a superposition of at least one layer comprising a fiber composite material, the at least one layer of fiber composite material comprising angular sectors arranged around a center, each defined by a first central angle and oriented in a radial direction the median of the central angle, each of the angular sectors comprising the fiber composite material comprising first and second fibers oriented different first and second respective directions, the first direction forming a second angle with the radial direction of the angular sector. The angular sectors comprise three concentric areas: a central area, a peripheral area and an intermediate area situated between the central area and the peripheral area, the intermediate area forming a rim.

Telecommunication antenna reflector for high-frequency applications in a geostationary space environment

An antenna with polarization switching comprises a support comprising at least two faces each supporting a plurality of waveguides fed with radiofrequency signals and pierced with apertures disposed so as to illuminate radiating elements placed some distance from the said apertures. For at least one given antenna pointing, the said support is able to toggle between at least two different configurations, the said support being configured so as to place, in the second configuration, the second face in a position identical to that taken by the first face in the first configuration, several radiating elements of the first face being, in the said position, oriented differently from radiating elements of the second face. It applies notably to the switching of antennas embedded onboard moving objects on the ground having to operate high-speed communications with a satellite, in particular a geostationary satellite.

Directional mobile antenna with polarization switching by displacement of radiating panels

High-voltage device with casing, protected against mobile electrical charges, and satellite equipped with the device. The device comprises a casing containing at least one high-voltage circuit and having at least one opening and means for opposing (a) the ingress into the casing of electrical charges of opposite sign to that of the high voltage, and (b) the existence outside the casing of high potentials due to the high voltage.

High-voltage device with a casing and protected against mobile electrical charges, and satellite equipped with the device

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Blagnac, France

Patrick Martineau