Satellites and subsystems > Communication systems > Antennas > Ka Band Feed
Key highlights
The EOSOL FEED-COMS-KA-TX-RX-SCP is designed to feed an offset reflector at Ka band mainly for telecom applications. It provides low spillover and therefore the feed offers low sidelobes level. The design can be adjusted to fit in other reflector configurations. Furthermore, reflector antenna simulation results can be included.
Applications
- Fixed Satcom terminals
- Flyaway Satcom terminals
Key features
- Frequency range: 20.2-21.2 GHz & 30-31 GHz
- Directivity: 16 dB (typical).
- Return loss 18 dB
- Axial ratio < 1.5 dB
- Single circular polarization antenna in each frequency band.
- Can feed a Single Offset Reflector (offset/D = 0.6) with f/D between 0.6 and 0.8.
- Configuration: Horn - Polarizer - Filters.
- The polarizer configuration on this feed can therefore be designed to work with ports in Tx/Tx or Rx/Rx (without using filters).
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Last updated: 2026-01-29
Technical specs
mass
< 500 g
width
88 mm
length
261 mm
height
56 mm
polarization
circular
field of view
31 deg
frequency
RX: 20.2 to 21.2 GHz
TX: 30.0 to 31.0 GHz
TX: 30.0 to 31.0 GHz
return loss
> 18 dB
> 20 dB
> 20 dB
axial ratio
RX: < 1.5 dB
TX: < 1 dB
TX: < 1 dB
directivity
16 dB (typ.)
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