Analysis of the RATAN-600 radiotelescope antenna with a multilevel Physical Optics algorithm

Christine Letrou, Vladimir Khaikin, Amir Boag

Research output: Contribution to journalShort surveypeer-review

Abstract

The RATAN-600 antenna is a flexible multireflector system composed of reflectors of very large dimensions. An extended system, with improved performance in the millimetric range, includes a focal receiver array. Accurate electromagnetic analysis of such a system, and simulation of three-dimensional (3D) patterns, represents a substantial computational challenge. A fast Physical Optics method based on a multilevel subdivision of the surfaces of integration is proposed to address this problem. This method allows to perform Physical Optics integrals with a computational complexity comparable to that of the Fast Fourier Transform. The algorithm and initial numerical results of its application to the RATAN-600 antenna system are presented.

Original languageEnglish
Pages (from-to)38-45
Number of pages8
JournalComptes Rendus Physique
Volume13
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • Multilevel algorithm
  • Multireflector antenna
  • Physical Optics
  • Radiotelescope

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