Faster Conversion between Multipole Series and Plane Waves for Broadband MLFMA

Järvenpää, Seppo; Wallén, Henrik

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Faster Conversion between Multipole Series and Plane Waves for Broadband MLFMA

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Title:	Faster Conversion between Multipole Series and Plane Waves for Broadband MLFMA
Author(s):	Järvenpää, Seppo ; Wallén, Henrik
Date:	2019-06-01
Language:	en
Department:	Keijo Nikoskinen Group Department of Electronics and Nanoengineering
Series:	IEEE Transactions on Antennas and Propagation
ISSN:	0018-926X 1558-2221
DOI-number:	10.1109/TAP.2019.2905722
Keywords:	Broadband antennas, Broadband communication, Standards, Fourier series, Fast Fourier transforms, MLFMA, Multilevel fast multipole algorithm, Method of moments, Fast Fourier transform, Interpolation, Anterpolation, fast Fourier transform, interpolation, multilevel fast multipole algorithm (MLFMA), method of moments
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Citation: Järvenpää , S & Wallén , H 2019 , ' Faster Conversion between Multipole Series and Plane Waves for Broadband MLFMA ' , IEEE Transactions on Antennas and Propagation , vol. 67 , no. 6 , 8668451 , pp. 3987-3995 . https://doi.org/10.1109/TAP.2019.2905722
Abstract: A new efficient approach for converting multipole series coefficients to plane wave samples and back is presented in detail. The presented algorithm utilizes the fast Fourier transform in order to speed up the process. It can be used to develop an efficient implementation of a broadband multilevel fast multipole algorithm (MLFMA). The numerical tests demonstrate that the presented process also allows full numerical error control, which is an important factor in a practical implementation.

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