ANTENNA POINTING MECHANISMS (APM)
KONGSBERG offers Antenna Pointing Mechanisms for both LEO data down link antennas and Inter Satellite Link antennas.
The KARMA (Kongsberg Adaptive Rotation Mechanism Assembly) is a family of products comprising Solar Array Drive Mechanisms (SADM) for interplanetary missions, Geostationary (GEO) satellites, and Low Earth Orbiting (LEO) satellites and Antenna Pointing Mechanisms (APM) for LEO data downlink antennas and Inter Satellite Link antennas.
The KARMA-7 FG is a state-of-the-art space-qualified Antenna Pointing System that consists of two main sub-systems, the mechanism with a traditional azimuth over elevation configuration, and the RF system. The RF system consists of the RF feed network (rotary joints and wave guides), and the antenna with the polarizer. The mechanism is realised using two identical Small Rotary Actuators (SRA) based on the Kongsberg EuroKARMA drive-line. The mechanism has been developed to accept RF sub-systems with single or dual polarisation, accommodating either X- or Ka-band.
The KARMA-7 SG is the next generation state-of-the-art Antenna Pointing System. It consists of two main sub-systems, the mechanism, and the RF system. The RF system consists of the RF feed network (rotary joint and wave guides), the antenna with the polarizer, and the elevation reflector. The system will accommodate RF systems with frequencies from Ka-band and up. The KARMA-7 SG is a multi-purpose antenna pointing system that satisfies needs for Data Down Link (DDL), as well as Inter Satellite Links (ISL)
Features
- Quick repositioning
- High accuracy
- High reliability
- Long life
- Low mass
- High TX power capacity
- Low insertion loss
- Full hemispherical coverage