Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloFive-Level Waveguide Correlation Unit for Astrophysical Polarimetric Measurements
Anno di pubblicazione2007
Formato
  • Elettronico
  • Cartaceo
Autore/iG. Virone, R. Tascone, M. Baralis, A. Olivieri, O. A. Peverini, R. Orta
Affiliazioni autoriCNR - IEIIT
Autori CNR e affiliazioni
  • RENATO ORTA VQR
  • OSCAR ANTONIO PEVERINI VQR
  • GIUSEPPE VIRONE VQR
  • AUGUSTO OLIVIERI
  • RICCARDO TASCONE VQR
Lingua/e
  • inglese
AbstractRecent astrophysical measurements require an accurate evaluation of the correlation product between very weakly correlated signals. Waveguide correlation units represent a very appealing solution for these applications because of their stability and low-loss features. A new waveguide correlation unit architecture is discussed in this paper. It extends over five levels in the E-plane and integrates hybrid couplers, filters, a phase shifter, matched loads and various matched transitions. All the aspects concerning the analysis, design, and manufacturing procedures are described, focusing on the reduction of the spurious correlation terms (systematic errors). An aluminum Ka-band prototype has been designed and experimentally tested. The device exhibits spurious correlation parameters of the order of 30 dB, in a 10% frequency band, in good agreement with the predicted data. Thanks to this feature, the presented architecture is suitable for high-performance correlation polarimeters, where very high sensitivity to the relevant signal, as well as very high rejection of both the unpolarized component of the radiation under test and the instrument noise, are required.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da309
Pagine a317
Pagine totali-
RivistaIEEE transactions on microwave theory and techniques
Attiva dal 1963
Editore: Professional Technical Group on Microwave Theory and Techniques, Institute of Electrical and Electronics Engineers, - New York, N.Y.
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0018-9480
Titolo chiave: IEEE transactions on microwave theory and techniques
Titolo proprio: IEEE transactions on microwave theory and techniques.
Titolo abbreviato: IEEE trans. microwave theor. tech.
Titoli alternativi:
  • Institute of Electrical and Electronics Engineers transactions on microwave theory and techniques
  • I.E.E.E. transactions on microwave theory and techniques
  • Transactions on microwave theory and techniques
  • Microwave theory and techniques
Numero volume della rivista55
Fascicolo della rivista2
DOI10.1109/TMTT.2006.890066
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000244265400015)
Parole chiaveCorrelation units, hybrid phase discriminators, polarization measurements, Stokes parameters, waveguide networks
Link (URL, URI)http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4084855
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
    Progetti Europei-
    Allegati
    • Five-Level Waveguide Correlation Unit for Astrophysical Polarimetric Measurements

    Dati storici
    I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
    Area disciplinareElectrical & Electronics Engineering
    Area valutazione CIVRIngegneria industriale e informatica
    Rivista ISIIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES [43604J0]