Alcatel

Alcatel Espace

Cyril Mangenot

Gerard Caille

Yann Cailloce

Jacques Maurel

The invention relates to a radiating source for transmitting and receiving, intended to be installed on board a satellite to define a radiation pattern in a terrestrial zone, said source being intended to be disposed in or near the focal plane of a reflector associated with other sources corresponding to other terrestrial zones. The source includes a plurality of radiating apertures, each of which has an efficiency at least equal to 70%, and feed means for feeding said radiating apertures. The radiating apertures and their feed means are such that the energy radiated by all of the radiating apertures is practically limited to the corresponding reflector, at least for transmission.

Radiating source for a transmit and receive antenna intended to be installed on board a satellite

A method of forming the radiation pattern of a high efficiency active antenna for electronically-scanned radar, wherein its illumination laws, and thus its radiation patterns are dissociated in transmission and in reception; and equal amplitude illumination is provided in transmission in order to maximize the efficiency of the transmit amplifiers which are all identical, thereby minimizing their DC energy consumption and their dissipation. The invention is particularly suitable for use in space radars.

Growing community of inventors

Toulouse, France

Cyril Mangenot