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L-3 Communications Corporation

Timothy G Riggs

Brandon Gregory Walsh

Neil Kenneth Harker

Jeffrey J McGill

Jeffrey S Sato

Bryan Willis

Stephen R Silver

A configurable antenna may include a circular horn array comprising a plurality of horn antennas, a configurable waveguide in a center of the circular horn array, and a plurality of actuators. The configurable waveguide includes a plurality of retractable triangular wedges, with one side of each wedge oriented to one of the plurality of horn antenna and a corner oriented toward a center of the waveguide, wherein a circle defined by each of the corners oriented toward the center of the waveguide defines a first circumference. The configurable waveguide further includes a plurality of movable tuning rods arranged in a circle defining a second circumference, the second circumference being smaller than the first circumference, said movable tuning rods further arranged such that the movable tuning rods are between the corners the corners oriented toward the center of the waveguide.

Configurable horn antenna

In accordance with one embodiment of the invention a control system for controlling performance of a device is provided. The control system includes a controller system and a deadband compensator connected to the controller. The deadband compensator compensates for error performance of the device while the device is in a static mode. The control system also includes a detector connected to the controller and is adapted to detect or determine movement of the device. If movement is detected or determined the deadband compensator is turned off or otherwise disengaged.

System and method for the intelligent use of software deadband control in a control system

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Taylorsville, UT, United States of America

Timothy G Riggs