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Tipo di prodottoArticolo in rivista
TitoloA Fast Green's Function Method for the Analysis of IDT's for Acousto-Optical Devices
Anno di pubblicazione2002
Formato
  • Elettronico
  • Cartaceo
Autore/iO. A. Peverini, R. Orta, R. Tascone
Affiliazioni autoriCNR- IEIIT
Autori CNR e affiliazioni
  • RENATO ORTA
  • OSCAR ANTONIO PEVERINI
  • RICCARDO TASCONE
Lingua/e
  • inglese
AbstractSurface acoustic wave (SAW) interdigital transducers are key components in X-Y LiNbO(3) acousto-optical (A-O) devices. SAW interdigital transducers (IDT's) on this substrate exhibit a high spurious resonance that may reduce the A-O efficiency. In this paper we present a detailed analysis of X-Y LiNbO(3) IDT's based on a fast Green's function method (GFM). In order to correctly evaluate the spurious effects on IDT's performance, we also considered bulk terms of the Green's function. When the GFM is applied to IDT's with general topology and over a wide frequency range, the required computation time can reach quickly unacceptable values for long IDT structures. We developed a new model order reduction technique based on the singular value decomposition (SVD) for the fast generation of the IDT's frequency response. Numerical results for different configurations of X-Y LiNbO(3) IDT's are in good agreement with measured data and a correct interpretation of the spurious resonance is reported. It is pointed out that bulk wave excitation may be a serious limitation in the design of efficient, wide band IDT's for A-O devices.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da365
Pagine a373
Pagine totali9
RivistaIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Attiva dal 1986
Editore: Institute of Electrical and Electronics Engineers, - New York, NY
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0885-3010
Titolo chiave: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Titolo proprio: IEEE transactions on ultrasonics, ferroelectrics, and frequency control.
Titolo abbreviato: IEEE trans. ultrason. ferroelectr. freq. control
Titoli alternativi:
  • Transactions on ultrasonics, ferroelectrics, and frequency control
  • Ultrasonics, ferroelectrics, and frequency control
Numero volume della rivista49
Fascicolo della rivista3
DOI10.1109/58.990955
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000174440200012)
Parole chiaveinterdigital transducer, green's function, SAW, acousto-optical devices
Link (URL, URI)http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=00990955
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
    • A Fast Green's Function Method for the Analysis of IDT's for Acousto-Optical Devices

    Dati storici
    I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
    Area disciplinareInformation Technology & Communications Systems
    Area valutazione CIVRScienze e tecnologie per una società dell'informazione e della comunicazione
    Rivista ISIIEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL [06679J0]
    Descrizione sintetica del prodottoSurface acoustic wave (SAW) interdigital transducers are key components in X-Y LiNbO3 acousto-optical devices. SAW interdigital transducers (IDT's) on this substrate exhibit a high spurious resonance that may reduce the acousto-optical efficiency. In this paper we present a detailed analysis of X-Y LiNbO3 IDT's based on a fast Green's Function Method (GFM). In order to correctly evaluate the spurious effects on IDT's performance we consider also bulk terms of the Green's function. When the GFM is applied to IDT's with general topology and over a wide frequency range, the required computation time can reach quickly unacceptable values for long IDT structures. We developed a new model order reduction technique based on the Singular Value Decomposition (SVD) for the fast generation of the IDT's frequency response. Numerical results for different configurations of X-Y LiNbO3 IDT's are in good agreement with measured data and a correct interpretation of the spurious resonance is reported. It is pointed out that bulk wave excitation may be a serious limitation in the design of efficient, wide band IDT's for A-O devices.