Thales

Centre National Detudes Spatiales

Thierry Adam

Benjamin Therond

Olivier Vendier

Stéphane Rochette

Raoul Rodriguez

Dominique Potuaud

Jérôme Battut

Johann Bornet

Vincent Armengaud

Pierre-Yves Chabaud

Jean-François Villemazet

Thomas Robe

François Grojean

A system includes input or output channels linked to nominal and redundant equipment items, and at least one redundancy matrix for routing the signals of a channel from one equipment item to a redundant or nominal equipment item, represented by a connection grid having rows corresponding to the channels of the system and columns corresponding to the equipment items of the system, and connection points comprising: the points of intersection of a nominal path situated on a nominal diagonal of the connection grid, and the points of intersection of a redundant path of the connection grid situated between each row corresponding to a channel Cand a column corresponding to a redundant element Rof index ƒ(i), ƒ being surjective, the redundancy matrix being implemented in the form of a circuit comprising switches arranged according to the connection grid.

Redundancy matrix-based system

A control node for an array antenna configured so as to apply an attenuation and a phase shift to a radiofrequency signal on the basis of a control signal, to a beamforming network, to an array antenna and to a satellite includes the control node. It comprises a quadratic divider that delivers an in-phase signal and a quadrature signal on separate transmission channels, a combiner configured so as to sum the signals transmitted on two of the transmission channels, each transmission channel comprising at least: one attenuation cell activated on the basis of the value of a dedicated bit of the control signal, and one phase shift cell configured so as to apply a fixed phase shift, activated on the basis of the result of combinational logic implemented on bits of the control signal.

Control node with an octagonal vector constellation for an array antenna

An attenuator is configured to attenuate and phase-shift a radiofrequency signal according to a control signal, having a plurality of first attenuation cells (A, A), configured to attenuate said radiofrequency signal by a predetermined value and activated according to a particular bit of the control signal, and implementing a combinatorial logic on the bits of the control signal that are used to control the first attenuation cells, and at least one second attenuation cell (B, B) configured to attenuate said radiofrequency signal by a predetermined value and activated according to a particular output implementing the combinatorial logic. A control node is also provided for an array antenna having such an attenuator, and an array antenna having an array of such control node and a satellite.

Multiscale vector constellation

A microwave switching device comprises: a switching matrix with M inputs and N outputs comprising at least one surface-mount microwave switch with ohmic contacts with at least one input and at least one output position; a control bus for the one or more microwave switches of the switching matrix; a telemetry bus for the M inputs; a telemetry bus for the N outputs; a bias tee positioned on each input of the switching matrix; and a bias tee positioned on each output of the switching matrix.

Microwave switching device with the state of the connections of the inputs and outputs being read by telemetry

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Toulouse, France

Thierry Adam