Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30019
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Venter, Mariet | en_US |
dc.contributor.author | BOLLI, Pietro | en_US |
dc.date.accessioned | 2021-01-26T16:31:18Z | - |
dc.date.available | 2021-01-26T16:31:18Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.isbn | 978-99949-0-401-3 | en_US |
dc.identifier.isbn | 978-1-5090-6317-8 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30019 | - |
dc.description.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. | en_US |
dc.language.iso | eng | en_US |
dc.title | Electromagnetic modelling of the 32-m Ghana radio telescope | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.23919/RADIO.2017.8242212 | en_US |
dc.identifier.scopus | 2-s2.0-85045834201 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.firstpage | 1 | en_US |
dc.relation.lastpage | 2 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 2 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | ZAF | en_US |
dc.relation.ispartofbook | 2017 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) | en_US |
dc.type.invited | no | en_US |
dc.relation.conferencename | 2017 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) | en_US |
dc.relation.conferenceplace | Cape Town, South Africa | en_US |
dc.relation.conferencedate | 25-28 September, 2017 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Conference paper | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0001-8770-8316 | - |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
PID4800491.pdf | postprint | 123.42 kB | Adobe PDF | View/Open |
08242212.pdf | [Administrators only] | 74.58 kB | Adobe PDF |
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Items in DSpace are published in Open Access, unless otherwise indicated.