Near field distribution of an aperture antenna having triangular type tapered aperture illumination for EMI estimation

Author

Das, A.L. ; Poddar, D.R. ; Sarkar, B.K.

Author_Institution

SAMEER, Center for Electromagn., Chennai, India

fYear

1997

fDate

3-5 Dec 1997

Firstpage

229

Lastpage

232

Abstract

This paper presents the estimation of the near field of an aperture antenna having a triangular type tapered aperture illumination for EMI estimation. To estimate the near field of the antenna at different distances away from its aperture, use has been made of the FFT technique to find the spatial field from the spectral distributions. The field at the aperture is reconstructed to provide the validity of the computation algorithm. The near field data given are useful for EMI estimation of an aperture antenna with triangular type tapered aperture illumination. The computation technique can be utilised to find the field distribution at any distance away from the antenna aperture over any planar or spherical surface for EMI hazards

Keywords

antenna radiation patterns; aperture antennas; electromagnetic fields; electromagnetic interference; fast Fourier transforms; interference suppression; EMI estimation; EMI hazards; FFT; antenna aperture; aperture antenna; aperture field reconstruction; computation algorithm; distance; interference reduction; near field data; near field distribution; planar surface; spatial field; spectral distributions; spherical surface; triangular type tapered aperture illumination; Antenna theory; Aperture antennas; Electromagnetic compatibility; Electromagnetic fields; Electromagnetic interference; Electromagnetic scattering; Equations; Lighting;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Interference and Compatibility '97. Proceedings of the International Conference on

Conference_Location

Hyderabad

Print_ISBN

81-900652-0-3

Type

conf

DOI

10.1109/ICEMIC.1997.669803

Filename

669803