Multi-beam antenna system with shaped reflector for generating flat beams
US6882323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/007
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A side-fed dual reflector antenna system (10) of the present invention overcomes the size cost and complexity limitations associated with conventional single and multiple reflector antenna systems. The antenna system (10) includes a feed array (18) including separate feeds for generating separate respective antenna beams, a subreflector (20) for reflecting the separate respective antenna beams generated by the separate feeds of the feed array (18), and a reflector (22) having a shaped reflecting surface for reflecting the separate respective antenna beams received from the subreflector (20) toward a terrestrial target (16) to produce substantially contiguous flat beams, each of which provides substantially uniform coverage within a predetermined coverage area on the terrestrial target. The subreflector (20) and each of the separate feeds in the feed array (18) are arranged so that a center of each of the separate respective antenna beams illuminates a center of the reflector (22) subsequent to being reflected from the subreflector (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.