Abstract
An effective technique for extracting the singularity of
plane wave spectra in the computation of antenna aperture fields is proposed. The singular spectrum is first factorized into a product of a finite function and a singular function. The finite function is inverse Fourier
transformed numerically using the Inverse Fast Fourier Transform, while the singular function is inverse Fourier transformed analytically, using the Weyl-identity, and the two resulting spatial functions are then convolved to produce the antenna aperture field. This article formulates
the theory of the singularity extraction technique and illustrates the effect of this for an array of electric Hertzian dipoles.
Original language | English |
---|---|
Journal | Microwave & Optical Technology Letters |
Volume | 50 |
Issue number | 5 |
Pages (from-to) | 1308-1312 |
ISSN | 0895-2477 |
DOIs | |
Publication status | Published - 2008 |
Keywords
- plane wave expansion
- Weyl-identity
- singularity extraction
- fast Fourier transform