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Comparison of precorrected FFT/adaptive integral method matching schemes

✍ Scribed by Kai Yang; Ali E. Yilmaz

Book ID
102518603
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
257 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

This article presents a detailed comparison of the moment, near‐field, and far‐field matching schemes that are used in precorrected FFT/adaptive integral method solvers to anterpolate currents (interpolate fields) on the nonuniform mesh of a structure of interest in terms of sources (observers) on an auxiliary regular grid. A general error measure is developed to evaluate the matching schemes in free space or layered media and for the high‐ or low‐frequency regime of operation. It is shown that moment matching is the most robust scheme, that far‐field matching is the most accurate scheme for high‐frequency regime but breaks down for low‐frequency regime, and that near‐field matching is more accurate than moment matching but requires the most preprocessing operations. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1368–1372, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26006

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