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US 11,539,105 B2Granted
Multiscale vector constellation
AssigneeThales
InventorsStéphane Rochette, Thierry Adam, Benjamin Therond, Vincent Armengaud
Life of this patent
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AssigneeThales
InventorsStéphane Rochette, Thierry Adam, Benjamin Therond, Vincent Armengaud
Estimating the term…
An attenuator is configured to attenuate and phase-shift a radiofrequency signal according to a control signal, having a plurality of first attenuation cells (A1, AN−1), 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 (B1, BM) 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.
An attenuator for an array antenna control node, configured to attenuate a radiofrequency signal according to a control signal, said attenuator comprising a plurality of first attenuation cells (A1, AN−1), each first attenuation cell being configured to attenuate said radiofrequency signal by a predetermined value and being activated according to a particular bit of the control signal, the attenuator being characterized in that it comprises a means for 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 (B1, BM), each second attenuation cell being configured to attenuate said radiofrequency signal by a predetermined value and being activated according to a particular output of the means for implementing a combinatorial logic.
Dependencies are inferred from the claim text.