Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloA fast reduced-order model for the full-wave FEM analysis of lossy inhomogeneous anisotropic waveguides
Anno di pubblicazione2002
Formato
  • Elettronico
  • Cartaceo
Autore/iF. Bertazzi; O. A. Peverini; M. Goano; G. Ghione; R. Orta; R. Tascone
Affiliazioni autoriAutori 2, 5 ,6: IEIIT-CNR Autori 1, 3, 4: POLITECNICO DI TORINO
Autori CNR e affiliazioni
  • RENATO ORTA
  • OSCAR ANTONIO PEVERINI
  • RICCARDO TASCONE
Lingua/e
  • inglese
AbstractThe evaluation of the frequency response of waveguiding structures by means of the full-wave Finite Element Method requires solving a large generalized eigenvalue problem for each frequency. This paper describes a novel approach, based on the singular value decomposition, which drastically reduces the order of the eigenvalue problem. By inspection of the singular values the accuracy level of the procedure may be controlled. The technique is applied to the analysis of open and closed waveguides with arbitrary cross section, lossy conductors, and anisotropic dielectric ayers, by means of vector elements of generic order; higher-order elements are shown to allow the accurate evaluation of fields inside lossy conductors with fewer unknowns, besides exactly modeling normal field discontinuities at material interfaces. Examples of application of the reduced-order technique are shown concerning both non-TEM and quasi-TEM structures.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da2108
Pagine a2114
Pagine totali6
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 rivista50
Fascicolo della rivista9
DOI10.1109/TMTT.2002.802323
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000177710200011)
Parole chiavefinite elements, method, vector, elements, waveguides
Link (URL, URI)http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1028951
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 reduced-order model for the full-wave FEM analysis of lossy inhomogeneous anisotropic waveguides

    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 MICROWAVE THEORY AND TECHNIQUES [43604J0]
    Descrizione sintetica del prodottoThe evaluation of the frequency response of waveguiding structures by means of the full-wave Finite Element Method requires solving a large generalized eigenvalue problem for each frequency. This paper describes a novel approach, based on the singular value decomposition, which drastically reduces the order of the eigenvalue problem. By inspection of the singular values the accuracy level of the procedure may be controlled. The technique is applied to the analysis of open and closed waveguides with arbitrary cross section, lossy conductors, and anisotropic dielectric ayers, by means of vector elements of generic order; higher-order elements are shown to allow the accurate evaluation of fields inside lossy conductors with fewer unknowns, besides exactly modeling normal field discontinuities at material interfaces. Examples of application of the reduced-order technique are shown concerning both non-TEM and quasi-TEM structures.