Satellite > Communication > Antenna > Deployable Offset Reflector Antenna
Summary
The deployable Offset Reflector antenna is designed for Synthetic Aperture Radar (SAR) at C-band. The diameter of the parabolic reflector is scalable from 3 to 6+m.
The reflector is made of a proprietary pre-shaped composite membrane surface, achieving a highly stable and accurate parabolic surface with a simple supporting cable network.
The antenna is held against a satellite platform in the stowed configuration during launch and is moved to the deployed position by an arm and hinge subsystem, then the reflector is radially deployed by the motorised composite deployment structure.
OSS designs a feed subsystem which can be a multi-feed or feed array that allows multi-beam operations illuminating different or wider areas of the ground in SAR operation.
The antenna has gone through an extensive test campaign with a full-scale Engineering Model, achieving TRL 6 as of March 2024. The antenna is currently in development toward a delivery of flight units leading to a flight opportunity.
Applications
C-band and SAR
Key features
- High RF performance
- Multibeam/multi feeds
- High Stowage Efficiency
- Low Mass
- Low Complexity
- Suitable for SmallSats (> 100kg)
- Customisable RF and mechanical features: Frequency (UHF to Ka-band), applications (e.g. telecommunication), and antenna diameter (3-6+m)
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The Oxford Space Systems offset reflector antenna is ITAR free.
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Last updated: 2024-04-24
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