Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25198
DC Field | Value | Language |
---|---|---|
dc.contributor.author | VALENTE, Giuseppe | en_US |
dc.contributor.author | MONTISCI, GIORGIO | en_US |
dc.contributor.author | PISANU, Tonino | en_US |
dc.contributor.author | Navarrini, Alessandro | en_US |
dc.contributor.author | MARONGIU, Pasqualino | en_US |
dc.contributor.author | Casula, Giovanni A. | en_US |
dc.date.accessioned | 2020-05-26T15:37:30Z | - |
dc.date.available | 2020-05-26T15:37:30Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0018-9480 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25198 | - |
dc.description.abstract | We describe the design, construction, and performance of a compact orthomode transducer (OMT) for the L-band receiver (1.3-1.8 GHz) of the Sardinia Radio Telescope (SRT). The complete OMT consists of a cylindrical orthomode junction (OMJ), which is presented in this paper, and two identical 180 ° hybrid power combiners in a double-ridged waveguide, which have been proposed in a previous work. The OMT operates at the cryogenic temperature of 20 K to reduce its thermal noise contribution to the noise of the receiving chain. Therefore, particular care has been taken in the design of the OMJ to minimize its dimension and insure a good thermalization. The proposed OMT has been designed and optimized by using CST Microwave Studio, and then manufactured, tested at room temperature, and installed on the L-band receiver of the SRT. The measured results fully comply with the design specifications. In particular, the isolation between the OMT output ports is more than 40 dB, and the cross polarization is less than -35 dB for both polarization channels. | en_US |
dc.language.iso | eng | en_US |
dc.title | A Compact L-Band Orthomode Transducer for Radio Astronomical Receivers at Cryogenic Temperature | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1109/TMTT.2015.2464809 | en_US |
dc.identifier.scopus | 2-s2.0-84960110022 | en_US |
dc.identifier.isi | 000362357900023 | en_US |
dc.identifier.url | https://ieeexplore.ieee.org/document/7208903 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 63 | en_US |
dc.relation.issue | 10 | en_US |
dc.relation.firstpage | 3218 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015ITMTT..63.3218V | en_US |
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 | 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.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0003-2510-7501 | - |
crisitem.author.orcid | 0000-0002-6191-6958 | - |
crisitem.author.orcid | 0000-0003-0314-7801 | - |
crisitem.journal.journalissn | 0018-9480 | - |
crisitem.journal.ance | E079940 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
IEEE-TMTT-Lband-OMT-SRT-2015_postprint.pdf | postprint | 1.14 MB | Adobe PDF | View/Open |
07208903.pdf | [administrators only] | 3.28 MB | Adobe PDF |
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