Invention Grant
- Patent Title: Wide scan steerable antenna with no key-hole
- Patent Title (中): 宽扫描可控天线,无钥匙孔
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Application No.: US13652680Application Date: 2012-10-16
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Publication No.: US09093742B2Publication Date: 2015-07-28
- Inventor: Eric Choiniére , Aiping Liang , Richard Horth , Philippe Loiselle
- Applicant: Eric Choiniére , Aiping Liang , Richard Horth , Philippe Loiselle
- Applicant Address: CA St. Anne-de-Bellevue, Quebec
- Assignee: McDonald, Dettwiler and Associates Corporation
- Current Assignee: McDonald, Dettwiler and Associates Corporation
- Current Assignee Address: CA St. Anne-de-Bellevue, Quebec
- Agency: Equinox IP
- Agent Franz Bonsang
- Main IPC: H01Q3/08
- IPC: H01Q3/08 ; H01Q3/18 ; H01Q1/28 ; H01Q19/13 ; H01Q19/19

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.
Public/Granted literature
- US20140104125A1 WIDE SCAN STEERABLE ANTENNA WITH NO KEY-HOLE Public/Granted day:2014-04-17
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