Advanced

Dissipation in Frequency Selective Structures

Widenberg, Björn LU (2002) In Technical Report LUTEDX/(TEAT-7107)/1-31/(2002) TEAT-7107.
Abstract
Dissipation in Frequency Selective Structures (FSS) of aperture/slot type is

studied. The FSS consists of an arbitrary number of aperture layers and

dielectric layers. An aperture layer consists of a conducting plate with a

periodic array of apertures, with arbitrary cross-section. The dissipation in

an FSS is due to losses in the dielectric material, and losses due to finite

conductivity in the metallic plate. The dissipation in the dielectric parts

is modelled by the complex permittivity. The dissipation on the metallic

structure arises both on the plane metallic surface and on the metallic walls

of the apertures.

The method used to analyze the FSS is based... (More)
Dissipation in Frequency Selective Structures (FSS) of aperture/slot type is

studied. The FSS consists of an arbitrary number of aperture layers and

dielectric layers. An aperture layer consists of a conducting plate with a

periodic array of apertures, with arbitrary cross-section. The dissipation in

an FSS is due to losses in the dielectric material, and losses due to finite

conductivity in the metallic plate. The dissipation in the dielectric parts

is modelled by the complex permittivity. The dissipation on the metallic

structure arises both on the plane metallic surface and on the metallic walls

of the apertures.

The method used to analyze the FSS is based on the mode matching technique

and the Finite Element Method (FEM). The apertures are treated as

waveguides. The field are expanded in Floquet modes and waveguide modes,

and scattering matrices are derived. The attenuation and the power losses

are calculated for a number of different FSS, and based on these results the

performance of an FSS with losses is discussed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7107)/1-31/(2002)
volume
TEAT-7107
pages
31 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
82a05465-60ba-48a1-b4ea-845de4aaa44a (old id 530543)
date added to LUP
2007-09-12 12:36:13
date last changed
2016-04-16 12:02:37
@techreport{82a05465-60ba-48a1-b4ea-845de4aaa44a,
  abstract     = {Dissipation in Frequency Selective Structures (FSS) of aperture/slot type is<br/><br>
studied. The FSS consists of an arbitrary number of aperture layers and<br/><br>
dielectric layers. An aperture layer consists of a conducting plate with a<br/><br>
periodic array of apertures, with arbitrary cross-section. The dissipation in<br/><br>
an FSS is due to losses in the dielectric material, and losses due to finite<br/><br>
conductivity in the metallic plate. The dissipation in the dielectric parts<br/><br>
is modelled by the complex permittivity. The dissipation on the metallic<br/><br>
structure arises both on the plane metallic surface and on the metallic walls<br/><br>
of the apertures.<br/><br>
The method used to analyze the FSS is based on the mode matching technique<br/><br>
and the Finite Element Method (FEM). The apertures are treated as<br/><br>
waveguides. The field are expanded in Floquet modes and waveguide modes,<br/><br>
and scattering matrices are derived. The attenuation and the power losses<br/><br>
are calculated for a number of different FSS, and based on these results the<br/><br>
performance of an FSS with losses is discussed.},
  author       = {Widenberg, Björn},
  institution  = {[Publisher information missing]},
  language     = {eng},
  pages        = {31},
  series       = {Technical Report LUTEDX/(TEAT-7107)/1-31/(2002)},
  title        = {Dissipation in Frequency Selective Structures},
  volume       = {TEAT-7107},
  year         = {2002},
}