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Fast and accurate analysis for the directivity of circular-shape antennas using optimal neural networks

✍ Scribed by P. H. da F. Silva; M. G. Passos; A. G. d'Assunção


Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
316 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis


Abstract

This article describes the application of the optimal transfer function neural network methodology for fast and accurate function approximation of Q‐integrals, that appears in directivity expressions of circular‐shape antennas, such as loop, microstrip patch, and aperture in an infinite ground plane. These directivity expressions were revisited and linked in terms of Q‐type power‐radiation integrals. For each directivity approach using optimal neural networks–closed‐form expressions, series of Bessel functions, and adaptive Lobatto integration, the numerical results are presented and discussed in terms of accuracy and computational cost. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2721–2726, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22839