A general-purpose algorithm such as the finite-difference-time-domain technique would be useful for analyzing discontinuity problems in classical waveguides. Its direct application, however, has been rendered difficult by the absence of exact termination conditions appropriate to the close waveguide environment. A rigorous termination condition specific to homogeneous waveguides is introduced. It is based on the convolution properties of the modal characteristic impedance of the accessible modes. This condition is straightforward to implement, as demonstrated by application to the nontrivial problem of a five cavity inductive post filter. Numerical results are compared to existing analytical and experimental data, showing excellent accuracy.

A New Termination Condition for the Application of FDTD Techiniques to Discontiniuty Problems in Close Homogeneous Waveguide / Moglie, Franco; Rozzi, Tullio; Marcozzi, P; Schiavoni, A.. - In: IEEE MICROWAVE AND GUIDED WAVE LETTERS. - ISSN 1051-8207. - 2:12(1992), pp. 475-477. [10.1109/75.173399]

A New Termination Condition for the Application of FDTD Techiniques to Discontiniuty Problems in Close Homogeneous Waveguide

MOGLIE, FRANCO;ROZZI, TULLIO;
1992-01-01

Abstract

A general-purpose algorithm such as the finite-difference-time-domain technique would be useful for analyzing discontinuity problems in classical waveguides. Its direct application, however, has been rendered difficult by the absence of exact termination conditions appropriate to the close waveguide environment. A rigorous termination condition specific to homogeneous waveguides is introduced. It is based on the convolution properties of the modal characteristic impedance of the accessible modes. This condition is straightforward to implement, as demonstrated by application to the nontrivial problem of a five cavity inductive post filter. Numerical results are compared to existing analytical and experimental data, showing excellent accuracy.
1992
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/33565
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 45
  • ???jsp.display-item.citation.isi??? ND
social impact