Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30019
Title: | Electromagnetic modelling of the 32-m Ghana radio telescope | Authors: | Venter, Mariet BOLLI, Pietro |
Issue Date: | 2017 | Volume: | 2017 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) | First Page: | 1 | Abstract: | This paper presents the electromagnetic modelling and supporting results of the African VLBI Network (AVN) Ghana radio telescope at the operating frequencies of 5 and 6.7 GHz. Working from limited technical data, we establish suitable geometrical parameters for the unshaped version of the Cassegrain system, including modelling and rotation of the four mirrors within the slanted beam-waveguide (BWG). The geometry implemented in GRASP (General Reflector Antenna Software Package) produces several performance values including the effects of the BWG, struts and mechanical tolerances. It is shown that the theoretical maximum gain and aperture efficiency at 5 GHz are 63.09 dBi and 72.56%, respectively. The corresponding values at 6.7 GHz are 65.80 dBi and 75.42%, respectively. | Conference Name: | 2017 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) | Conference Place: | Cape Town, South Africa | Conference Date: | 25-28 September, 2017 | URI: | http://hdl.handle.net/20.500.12386/30019 | ISBN: | 978-99949-0-401-3 978-1-5090-6317-8 |
DOI: | 10.23919/RADIO.2017.8242212 | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
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PID4800491.pdf | postprint | 123.42 kB | Adobe PDF | View/Open |
08242212.pdf | [Administrators only] | 74.58 kB | Adobe PDF |
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