Octave Bandwidth Photonic True Time Delay Beamformer for SKA Demonstrator  
   

Design

Existing Antenna Demonstrator at ASTRON

  • 64 dipole antennas
  • 16 electrical beamforming modules (1) perform TTD steering for 4 elements each
  • 4 electrical beamforming modules (2) perform TTD steering for 4 columns each
  • The four outputs are combined (S) without delay adjustment
 
Enhancement in this Project
  • Last module (S) is replaced by a photonic module with 2 bit True Time Delay steering

Next



HTML version of the poster presented at the SKA Workshop, Jodrell Bank Observatory,
3-5 August 2000
 


 
 
Title
Design
    (dis)advantages
    Existing antenna
    demonstator
Realisation
    Components
    Architecture
Measurements
    Antenna Patterns
    RF characteristics
Conclusions
     Future Work
    Acknowledgements