A fast MoM solution for large arrays: Green's function interpolation with FFT

A fast MoM solution for large arrays: Green's function interpolation with FFT

A new type of fast method of moments (MoM) solution scheme for large arrays is developed using standard basis functions. Both fill and solve times are improved with respect to standard MoM solvers. The efficiency of the method relies on approximating the Green's function as a sum of separable i...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2004-01, Vol.3, p.161-164
Hauptverfasser: Fasenfest, B.J, Capolino, F, Wilton, D.R, Jackson, D.R, Champagne, N.J
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Antennas
Approximation
Arrays
Fast Fourier transforms
Fourier transforms
Green's function methods
Green's functions
Interpolation
Laboratories
Message-oriented middleware
Moment methods
Planar arrays
Solvers
Standards development
Testing
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Beschreibung
Zusammenfassung:A new type of fast method of moments (MoM) solution scheme for large arrays is developed using standard basis functions. Both fill and solve times are improved with respect to standard MoM solvers. The efficiency of the method relies on approximating the Green's function as a sum of separable interpolation functions defined on a relatively sparse uniform grid, along with use of the fast Fourier transform. The method permits the analysis of arrays with arbitrary contours and/or missing elements. Preliminary results show the effectiveness of the method for planar array elements in free space.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2004.833713