Impact of a purina fractal array geometry on beamforming performance and complexity

Philippos Karagiannakis, Stephan Weiss, Giuliano Punzo, Malcolm Macdonald, Jamie Bowman, Robert Stewart

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)
59 Downloads (Pure)


This paper investigates the possible benefits of using a Purina fractal array for beamforming, since this particular fractal has recently been suggested as the flight formation for a fractionated space craft. We analyse the beam pattern created by this, and define power concentration as measure of focussing the main beam of a multi-dimensional array. Using this performance metric and the computation cost of the array, a comparison to full lattice arrays is made. We quantify the significant benefits of the Purina array offered over a full lattice array of same complexity particularly at lower frequencies, and the complexity advantages over full lattice arrays of same aperture, particularly if energy is to be concentrated within a small angular spread.
Original languageEnglish
Number of pages5
Publication statusPublished - Sept 2013
Event21st European Signal Processing Conference - Marrakech, Morocco
Duration: 9 Sept 201313 Sept 2013


Conference21st European Signal Processing Conference


  • impact
  • purina
  • fractal array geometry
  • beamforming
  • performance
  • complexity


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