Optimization of focusing optics of RATAN-600 radio telescope

V. B. Khaikin, M. K. Lebedev, E. K. Majoroval, A. Boag, C. Letrou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Results of simulations of RATAN-600 radio telescope focusing optics are given. It is shown that due to suboptimal shape of the secondary mirror, the total energy loss amounts to 10%÷15% at low elevations and 2÷4% at high elevations. New ways of focusing optics optimization, which allow to compensate for up to 80% of the energy loss caused by the non-optimal shape of the secondary mirror, are proposed. The proposed solutions were verified by extensive simulations. These simulations used geometrical optics approximation (GO), supplemented by the calculation of the near and the far field with Projected Aperture (PA) and Physical Optics (PO) methods, thus taking the finite wavelength effects into account.

Original languageEnglish
Title of host publication2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009
DOIs
StatePublished - 2009
Event2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009 - Tel Aviv, Israel
Duration: 9 Nov 200911 Nov 2009

Publication series

Name2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009

Conference

Conference2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems, COMCAS 2009
Country/TerritoryIsrael
CityTel Aviv
Period9/11/0911/11/09

Keywords

  • Antenna efficiency
  • Beam patterns
  • Focusing optics
  • Radiotelescope

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