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Usage of a surface integral representation to reconstruct equivalent currents - with radome applications

Persson, Kristin LU ; Gustafsson, Mats LU and Kristensson, Gerhard LU (2005) Nordic Conference on Radio Science and Communications, 2005 In Proceedings of Radiovetenskap och kommunikation
Abstract
Knowledge of the current distribution on a radome can be used to

improve radome design, detect manufacturing errors, and to verify

numerical simulations. In this paper, the transformation from

near-field data to its equivalent current distribution on a surface of

arbitrary material, ie the radome, is analyzed. The transformation is

based on a full vector surface integral representation that relates the

equivalent currents to the near-field data.

Measured near-field data originating from a reflector antenna

is then examined. The field irradiates a radome whereupon it is

measured on a cylindrical surface. The quantity of data is large since

the height... (More)
Knowledge of the current distribution on a radome can be used to

improve radome design, detect manufacturing errors, and to verify

numerical simulations. In this paper, the transformation from

near-field data to its equivalent current distribution on a surface of

arbitrary material, ie the radome, is analyzed. The transformation is

based on a full vector surface integral representation that relates the

equivalent currents to the near-field data.

Measured near-field data originating from a reflector antenna

is then examined. The field irradiates a radome whereupon it is

measured on a cylindrical surface. The quantity of data is large since

the height of the radome corresponds to $29-43unit{wavelengths}$ in

the frequency interval $8.0-12.0unit{GHz}$. The presence of axial

symmetry enables usage of the fast Fourier transform (FFT) to reduce

the computational complexity. Furthermore, the problem is regularized

using the singular value decomposition (SVD). (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
near field to equivalent currents transformation, singular value decomposition, radome applications, surface integral equation, arbitrary geometric structures
in
Proceedings of Radiovetenskap och kommunikation
pages
6 pages
conference name
Nordic Conference on Radio Science and Communications, 2005
ISBN
91-7056-123-0
language
English
LU publication?
yes
id
ca86a3d9-9341-49df-94fd-2b664fcabcf1 (old id 1167000)
date added to LUP
2008-07-09 10:52:01
date last changed
2016-04-16 11:27:48
@misc{ca86a3d9-9341-49df-94fd-2b664fcabcf1,
  abstract     = {Knowledge of the current distribution on a radome can be used to<br/><br>
improve radome design, detect manufacturing errors, and to verify<br/><br>
numerical simulations. In this paper, the transformation from<br/><br>
near-field data to its equivalent current distribution on a surface of<br/><br>
arbitrary material, ie the radome, is analyzed. The transformation is<br/><br>
based on a full vector surface integral representation that relates the<br/><br>
equivalent currents to the near-field data. <br/><br>
Measured near-field data originating from a reflector antenna<br/><br>
is then examined. The field irradiates a radome whereupon it is<br/><br>
measured on a cylindrical surface. The quantity of data is large since<br/><br>
the height of the radome corresponds to $29-43unit{wavelengths}$ in<br/><br>
the frequency interval $8.0-12.0unit{GHz}$. The presence of axial<br/><br>
symmetry enables usage of the fast Fourier transform (FFT) to reduce<br/><br>
the computational complexity. Furthermore, the problem is regularized<br/><br>
using the singular value decomposition (SVD).},
  author       = {Persson, Kristin and Gustafsson, Mats and Kristensson, Gerhard},
  isbn         = {91-7056-123-0},
  keyword      = {near field to equivalent currents transformation,singular value decomposition,radome applications,surface integral equation,arbitrary geometric structures},
  language     = {eng},
  pages        = {6},
  series       = {Proceedings of Radiovetenskap och kommunikation},
  title        = {Usage of a surface integral representation to reconstruct equivalent currents - with radome applications},
  year         = {2005},
}