Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1995-05-24
1997-07-22
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
343768, 343911R, 343771, H01Q 322
Patent
active
056507879
ABSTRACT:
A scanning array antenna employs a solid rotating core having an anisotropic refractive index within an apertured waveguide that emits radiation in response to an input beam propagating through the waveguide. Rotating the core changes its refractive index relative to the input beam, causing the radiated beams to undergo an angular scanning. The solid rotating waveguide core can be formed from a dispersion of aligned elongate conductive members in an isotropic dielectric, from a liquid crystal medium, or from a dispersion of aligned elongate conductive members in a liquid crystal medium. The antenna is operable in reciprocal transmission and reception modes.
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Lackner A. M.
Lim K. C.
Margerum J. D.
Sherman E.
Denson-Low Wanda K.
Duraiswamy Vijayalakshmi
Hughes Electronics
Phan Dao C.
Tarcza Thomas H.
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