Northrop Grumman Systems Corporation

Robert W White

Harvey L Berger

Dennis A Nivens

Scott A Cooper

Stuart T Linsky

Reginald Jue

Garrick Jon Harmon

Esmaell Yousefi

Fred C Tramm

A power gated variable hop cycle beam laydown () manifests itself as first cells (C, D) supported by a first hop cycle, second cells (G, H) supported by a second hop cycle, and transition cells (E, F) supported by a transition hop cycle. The transition hop cycle uses power gating to transition the laydown () from cells (C, D) operating at the first hop cycle to cells (G, H) operating at the second hop cycle. To this end, the transition hop cycle power gates its downlink beam for a portion of time needed to reduce interference between nearby (e.g., adjacent) cells.

Beam laydown for hopped satellite downlink with adaptable duty cycle

A data routing subsystem () for a communication satellite includes an inbound module () that accepts demodulated uplink data. The inbound module () includes a routing table () that stores queue tags () specifying downlink beam hop locations () for the uplink data. The subsystem () also includes a self addressed packet switch () having an input port coupled to the inbound module (), and an outbound module () coupled to an output port of the switch (). A memory () in the outbound module () stores the uplink data in accordance with the downlink beam hop locations (). A multiple beam array antenna () is coupled to the outbound module (). The multiple beam array antenna () includes a first feed element () assigned to a first downlink beam hop location () and a second feed element () assigned to a second downlink beam hop location ().

Beam hopping self addressed packet switched communication system with multiple beam array antenna

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Playa Del Rey, CA, United States of America

Robert W White