Remi Sarkis

Northern Cross Radio Telescope (2008-2010)

• Description: The goal is to develop  the  design  of  a  broad band antenna feed system for the cylindrical offset parabolic reflector of  the  Italian  Northern  Cross  radio  telescope.  Its operative frequency band spans from the Low Frequency Array (LOFAR) upper band, i.e. 120-240 MHz, to the present telescope operative band centred at 408 MHz.  The proposed configuration consists of a linear array of gridded Vivaldi (tapered slot) radiators inside wired sub reflector.
• NCRT Antenna Task:
  
• Numerical simulation of infinite array of wideband antennas inside a reflector.
• My contribution to NCRT: Numerical simulation of the array and analysis of the array characteristics: beam width, bandwidth and scan angles.
  

The Northern Cross Radio Telescope.

Linear array of gridded Vivaldi radiators inside the wired subreflector.