The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2000
Filed:
Apr. 01, 1999
Howard Ho-shou Luh, Sunnyvale, CA (US);
Space Systems/Loral, Inc., Palo Alto, CA (US);
Abstract
Improved active multiple beam antennas that comprise an amplifier array or grid amplifier having substantially identical amplifiers. A feed array having a plurality of antenna elements provides RF energy. A microwave lens is disposed adjacent to the feed array that weakly focuses the RF energy from the feed array. The amplifier array or grid amplifier is disposed opposite the microwave lens from the feed array. The feed array illuminates the amplifier array or grid amplifier via the microwave lens. The weakly focused RF signals are amplified without changing their respective directions of propagation, which forms powerful multiple beams in the far field.