Confocal phased array fed reflector antenna beam stabilization
US11901630B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2021 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/147
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Provided herein are various improvements to antenna stabilization systems, such as employed on confocal phased array reflector antenna arrangements. In one example, a system includes a feed structure for a main reflector, the feed structure comprising an electronically scanned array (ESA) feed and a sub-reflector. The sub-reflector is configured to propagate a signal between the ESA feed and the main reflector. The system also includes a star tracker element coupled to the feed structure and configured to determine orientation information relative to star alignment, and laser distancing elements coupled to the feed structure and configured to determine distance measurements relative to the main reflector. A control system is configured to determine pointing errors of the main reflector based at least on the orientation information and the distance measurements, and these pointing errors can be used by the ESA feed to adjust steering of a signal towards a target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.