Patent Number: 6,396,449

Title: Layered electronically scanned antenna and method therefor

Abstract: A layered, electronically scanned antenna. The antenna includes a pluralityor array layers separated by dielectric spacers. Each array layer includesa transistor switched grid formed by a plurality ofreflective/transmissive elements such as cross dipoles interconnected by aplurality of semiconductors, such as MOSFETs. When the switched grid is inan open state, its associated array layer is reflective. When it is in aclosed condition, its associated layer is in a transmissive state. Bycontrolling the state of each array layer, a desired degree of phase shiftcan be imparted to the signal reflected by the antenna. The antenna thuseliminates the need for costly MEMS/MMIC technology to achieve the desireddegrees of phase shift of a signal reflected by the antenna.

Inventors: Osterhues; Gordon D. (Irvine, CA), Miller; Michael C. (Chandler, AZ), Tornberg; Neal Eugene (Mesa, AZ), Waineo; Douglas K. (Placentia, CA)


International Classification: H01Q 3/46 (20060101); H01Q 3/44 (20060101); H01Q 21/00 (20060101); H01Q 3/00 (20060101); H01Q 019/06 ()

Expiration Date: 05/28/2014