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Efficiency improvement in the spline-type divided-difference interpolation technique for impedance matrix calculation

✍ Scribed by Sungtek Kahng; Jaehoon Choi; Hyeongdong Kim

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 159 KB
Volume: 23
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19991220)23:6<361::aid-mop12>3.0.co;2-1

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✦ Synopsis

In this letter, a method to determine the sampling inter¨als for the spline-type di¨ided-difference interpolation of spectral integrals is suggested by utilizing simple differentiation of the interpolating function. It impro¨es the numerical efficiency of the recent research based on the spline-type di¨ided-difference interpolation scheme. The proposed method is applied to analyze the characteristics of an aperture-coupled patch antenna. Numerical results obtained by using this approach are in good agreement with those of other approaches.

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