Gaussian beams representation based on periodic frames for radiation from cylindrical apertures

Author

Letrou, Christine ; Boag, Amir ; Heyman, Ehud

Author_Institution

INT/GET, Lab, SAMOVAR (CNRS UMR 5157), Evry, France

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1979

Abstract

A formulation is introduced for periodic windowed Fourier transform (WFT) frames. Such frames are then used to represent fields on cylindrical surfaces. Through phase matching at the surface, fields radiated from localized Gaussian windows are expressed in the form of general Gaussian beams, leading to a representation of radiated fields as sums of beam propagators. Such representations are presented on test cases, and can be most useful in representing fields in complex environments, around linear sources or obstacles.

Keywords

Fourier transforms; Gaussian distribution; electromagnetic field theory; electromagnetic fields; electromagnetic wave propagation; electromagnetic waves; Gaussian beams representation; beam propagators; cylindrical apertures; linear sources; localized Gaussian windows; obstacles; periodic frames; periodic windowed Fourier transform frames; phase matching; radiated fields; Apertures; Diffraction; Fourier transforms; Frequency conversion; Matrix decomposition; Scattering; Structural beams; Surface waves; Testing; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330593

Filename

1330593