NDLI: On the use of linear-prediction techniques to improve the computational efficiency of the FDTD method for the analysis of resonant structures

Content Provider	IEEE Xplore Digital Library
Author	Pereda, J.A. Del Rio, J.E.F. Wysocka-Schillak, F. Prieto, A. Vegas, A.
Copyright Year	1963
Abstract	Linear-prediction (LP) techniques are used to accurately and efficiently compute the frequencies and damping factors of microwave resonant structures from their transient response, which was previously obtained by using the finite-difference time-domain (FDTD) method. The LP equations are formulated in terms of a total least squares (TLS) problem and are solved by using the singular-value decomposition (SVD) algorithm. This approach confers robustness to the LP method, improves the spectral resolution, and provides a simple criterion for selecting the order of the LP model. We illustrate these characteristics of the LP method by applying it to two types of problems: the determination of the propagation constants of waveguides loaded with lossy dielectrics, and the calculation of the resonant frequencies of cylindrical cavities loaded with dielectric ring resonators.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	1027
Ending Page	1032
Page Count	6
File Size	187211
File Format	PDF
ISSN	00189480
Volume Number	46
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectric losses Finite difference methods Time domain analysis Frequency Damping Microwave theory and techniques Resonance Transient response Equations Least squares methods
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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