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:
Jul. 28, 2015
Filed:
Oct. 16, 2012
Eric Choiniére, Ottawa, CA;
Aiping Liang, Dollard-DesOrmeaux, CA;
Richard Horth, Kirkland, CA;
Philippe Loiselle, Montréal, CA;
Eric Choiniére, Ottawa, CA;
Aiping Liang, Dollard-DesOrmeaux, CA;
Richard Horth, Kirkland, CA;
Philippe Loiselle, Montréal, CA;
McDonald, Dettwiler and Associates Corporation, St. Anne-de-Bellevue, Quebec, CA;
Abstract
A steerable antenna architecture, or configuration, for optimal steering of transmitting and/or receiving beam over wide scan angles, is capable of steering the beam on a full hemisphere (2π steradians), with no singularity or key-hole within a coverage area and with only one RF rotary joint. The architecture includes a dual-reflector assembly defining an antenna focal point located close to a main reflector surface and a signal feed chain having a signal source located adjacent to the antenna focal point and defining a feed axis substantially pointing towards a sub-reflector intersection point. A first actuator rotates the feed chain and the dual-reflector assembly about a first rotation axis generally perpendicular to the feed axis and not intersecting with the coverage area. A second actuator rotates one of the main reflector and the dual-reflector assembly about a second rotation axis aligned with the feed axis.