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Information × Registration Number 0220U102983, 0120U102762 , R & D reports Title Creation of a radio telescope based on the CSRC antenna system for participation in VLBI experiments. Carrying out of complex works on working off of interaction of components of the RT-32 radio telescope. Modeling of the combined antenna-feeder path of C-, K- and X-bands popup.stage_title Head Natarov Mykhailo P., Registration Date 03-07-2020 Organization O. Ya. Usikov Institute for Radiophysics and Electronics NAS of Ukraine popup.description2  The object of research is the antenna-feeder path of the RT-32 radio telescope for receiving signals with elliptical polarization in the C-, K- and X-frequency bands. The aim of the work is to investigate the possibilities of modifying the dual-band antenna-feeder path of the C- and K-bands of the RT-32 radio telescope to create a combined three-band path of the C-, K- and X-frequency bands in order to jointly receive signals in these frequency bands. Create an electrodynamic model of the three-band path of the C-, K- and X-bands and calculate the expected characteristics. Research methods are the methods of computational electrodynamics and creation on their basis of fast algorithms of calculation of electrodynamic structures characteristics, methods of optimization by means of software packages on the basis of grid methods of electrodynamics. In the work on the first stage of research in order to expand the operating frequency range of the RT-32 radio telescope, the possibility of revision the antenna-feeder path for receiving signals in the X-frequency range was investigated. Modeling of variants of construction of a receiving waveguide path is carried out, the most perspective variant is revealed, the basic geometrical parameters of waveguide elements are defined. The optimization of the elements of the path: low-pass filters, elements of coupling of circular waveguides, devices for separating circular polarizations of C and X bands. It is indicated that for further improvement of characteristics additional optimization with involvement of large computing resources is necessary. Product Description popup.authors Hlamazdin Volodymyr V. Mospan Liudmyla P Natarov Mykhailo P Steshenko Sergii O. Shubnyi Oleksandr I. popup.nrat_date 2020-07-03 Close