• • High Aperture Efficiency 70%*
  • • Excellent Input Matching
  • • Constant Phase Center*
  • • Ultra Low Cross-polar levels*
  • • Frequency Bandwidth: 1050-1650 MHz 
  • • Machined from Single Aluminium Block
  • • Radome included
  • • Weight= 22 +/- 0.5 Kg
  • • Dimensions: Diameter = 504 mm, Length= 148mm

Simulated 3D Far-field of Choke Horn (Linear Co-polar)

Reflection Coefficient at Circular Waveguide Input Port

Directivity of Choke Horn

Aperture Efficiency for Prime Focus Reflector f/D=0.4

Choke Horn's Phase Center with respect to its aperture

Peak Cross-polar Sidelobe level with respect to Co-polar maximum

Defocussing Loss when antenna is located at phase center = -50 mm

* Calculations in above plots are based on following assumptions

  • Antenna is excited with ideal TE11 circular waveguide mode
  • The polarization of mode is along y-axis
  • The reflector is prime focus having f/D=0.4
  • The reflector surface is ideal
  • Feed is located at the optimum phase center

 

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