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Efficient full‐kernel evaluation for thin wire analysis
Author(s) -
Heldring A.,
Rius J. M.
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20672
Subject(s) - dipole , radius , geometry , integral equation , method of moments (probability theory) , mathematical analysis , microwave , fractal , dipole antenna , kernel (algebra) , mathematics , antenna (radio) , physics , optics , engineering , electrical engineering , telecommunications , computer science , combinatorics , statistics , computer security , quantum mechanics , estimator
An accurate and fast approximation of the full cylindrical kernel in the thin‐wire electric‐field integral equation is proposed. The presented formulation is accurate for any ratio of the method of moments wire segment length Δ to the wire radius a , and anywhere in space, including on the wire surface. As a numerical example, the input impedance of a center‐fed dipole is computed, showing convergence down to Δ/ a = 10 −4 . A second numerical example shows the application of the model to a complicated geometry: a Koch fractal monopole antenna. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 477–480, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20672