Thales

Alcatel

Alcatel N.v.

Jean-Francois David

Regis Lenormand

Jose Ignacio Herranz-Herruzo

Alejandro Valero-Nogueria

Olivier Remondiere

Jean-Marc Bassaler

Jean-Luc Almeida

Antonin Hirsch

Thierry Judasz

Jacques Maurel

Patrick Martineau

Paul Vincent

Laurence Laborde

Alejandro Valero Nogueria

José Ignacio Herranz

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

An antenna with polarization switching comprising a plurality of waveguides fed with radiofrequency signals and perforated with apertures disposed so as to illuminate radiating elements placed on mobile support means in a plane that is distant from the said apertures, it being possible for the said support means to be configured according to at least two distinct configurations. The radiating elements illuminated according to one and the same configuration are adjacent, the support means being adapted for orienting the radiating elements illuminated in a first configuration according to a different direction from the radiating elements illuminated in a second configuration. The antenna applies notably to the switching of antennas onboard objects moving on the ground required to undertake high-speed communications with a satellite, in particular a geostationary satellite.

Mobile directional antenna with polarization switching

Dual polarisation antenna having low side lobes, useful in a satellite radio communication system. The antenna includes a reflector assembly ( ) illuminated by a feed source ( ). The reflector assembly ( ) includes a front reflector ( ) that reflects two electromagnetic waves orthogonally polarized and each at a different frequency, an auxiliary reflector ( ) that reflects one of the orthogonally polarized electromagnetic waves, and a deflecting surface ( ) that totally diffracts the orthogonally polarized electromagnetic wave that passes through the auxiliary reflector ( ).

Dual polarization antenna with low side lobes

A radiating device for a planar antenna, said device including a first ground plane and a second ground plane, a slot (25) provided in the first ground plane and being fed by electromagnetic coupling from a feed line (17), and an assembly of a plurality of thin conductive parts; the central portion of the radiating slot (25) being a conductive part (15) supported at its center by a supporting column (18). Application in particular to the space field.

Radiating device for a plannar antenna

Growing community of inventors

Toulouse, France

Jean-Francois David