Generalized multipole technique without redundant multipoles
Automatic multipoles placement in the Generalized Multipole Technique (GMT) generates also multipoles that are not necessary for obtaining accurate solutions and may prevent numerical stability. It is therefore important to find out these multipoles and to eliminate them. Two procedures for identify...
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Published in | International journal of numerical modelling Vol. 18; no. 6; pp. 413 - 427 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Chichester, UK
John Wiley & Sons, Ltd
01.11.2005
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Subjects | |
Online Access | Get full text |
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Summary: | Automatic multipoles placement in the Generalized Multipole Technique (GMT) generates also multipoles that are not necessary for obtaining accurate solutions and may prevent numerical stability. It is therefore important to find out these multipoles and to eliminate them. Two procedures for identifying the redundant multipoles are proposed by using either the singular value decomposition or the rank revealing QR decomposition. Simulation results for both cases show significant improvement in numerical stability as a result of removing the redundant multipoles. A comparison between the two methods is presented for the example of a horn antenna with a radiating elliptical aperture. Copyright © 2005 John Wiley & Sons, Ltd. |
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Bibliography: | istex:5740A95B903009F75507E1364196E2082961C54E ArticleID:JNM588 ark:/67375/WNG-CSG185TV-J Senior member, IEEE. |
ISSN: | 0894-3370 1099-1204 |
DOI: | 10.1002/jnm.588 |