Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1996-10-29
1998-05-26
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
333144, 333139, 333262, H01Q 322
Patent
active
057573190
ABSTRACT:
A phased array radar system employs programmable microelectromechanical (MEM) switches and transmission lines to provide true time delays or phase shifts in order to steer the array beam. The array includes an excitation signal source, a power division network for dividing the excitation signal into a plurality of excitation signal components, a plurality of programmable time delay/phase shift circuits including the transmission lines and MEM switches, and a plurality of radiating elements. An adaptive controller provides the control signals to set the MEM switches and select the time delay/phase shift through each time delay/phase shift circuit, thereby steering the array beam to a desired direction.
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Atkinson Darren E.
Jones Vince L.
Lam Juan F.
Lee Jar J.
Loo Robert Y.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Electronics Corporation
Phan Dao L.
Tarcza Thomas H.
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