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A General Mode Matching Technique applied to Bandpass Radomes

Widenberg, Björn LU (2001) In Technical Report LUTEDX/(TEAT-7098)/1-33/(2001) TEAT-7098.
Abstract
A new method based on the mode matching technique and the finite element

method (FEM) is presented. The method can handle a general thick frequency

selective structure (FSS), that consists of an arbitraryn umber of aperture

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

with a periodic arrayof apertures. The order and the thickness of the layers

can be arbitrary. The aperture can have arbitrary cross-section, and these

cross-sections can be changed stepwise. The apertures can also be filled with

a dielectric material.

The method for the bandpass radomes is based on general mode matching

technique and cascade coupling. The fields... (More)
A new method based on the mode matching technique and the finite element

method (FEM) is presented. The method can handle a general thick frequency

selective structure (FSS), that consists of an arbitraryn umber of aperture

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

with a periodic arrayof apertures. The order and the thickness of the layers

can be arbitrary. The aperture can have arbitrary cross-section, and these

cross-sections can be changed stepwise. The apertures can also be filled with

a dielectric material.

The method for the bandpass radomes is based on general mode matching

technique and cascade coupling. The fields outside the FSS and inside the

dielectric layers are expanded in Floquet modes. Inside the aperture layers

the fields are expanded in waveguide modes, which are calculated with FEM.

Bya mode matching technique, a scattering matrix is calculated for every

boundarysurface and a propagation matrix is calculated for everyla yer. These

matrices are cascade coupled to form a scattering matrix for the complete

FSS. The method has been verified bycomparison with other methods and

measurements. (Less)
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organization
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type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7098)/1-33/(2001)
volume
TEAT-7098
pages
33 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
29d54523-5c06-4b86-aa96-39abb06b8114 (old id 525979)
date added to LUP
2007-09-12 12:36:28
date last changed
2016-04-16 11:10:57
@techreport{29d54523-5c06-4b86-aa96-39abb06b8114,
  abstract     = {A new method based on the mode matching technique and the finite element<br/><br>
method (FEM) is presented. The method can handle a general thick frequency<br/><br>
selective structure (FSS), that consists of an arbitraryn umber of aperture<br/><br>
layers and dielectric layers. An aperture layer consists of a conducting plate<br/><br>
with a periodic arrayof apertures. The order and the thickness of the layers<br/><br>
can be arbitrary. The aperture can have arbitrary cross-section, and these<br/><br>
cross-sections can be changed stepwise. The apertures can also be filled with<br/><br>
a dielectric material.<br/><br>
The method for the bandpass radomes is based on general mode matching<br/><br>
technique and cascade coupling. The fields outside the FSS and inside the<br/><br>
dielectric layers are expanded in Floquet modes. Inside the aperture layers<br/><br>
the fields are expanded in waveguide modes, which are calculated with FEM.<br/><br>
Bya mode matching technique, a scattering matrix is calculated for every<br/><br>
boundarysurface and a propagation matrix is calculated for everyla yer. These<br/><br>
matrices are cascade coupled to form a scattering matrix for the complete<br/><br>
FSS. The method has been verified bycomparison with other methods and<br/><br>
measurements.},
  author       = {Widenberg, Björn},
  institution  = {[Publisher information missing]},
  language     = {eng},
  pages        = {33},
  series       = {Technical Report LUTEDX/(TEAT-7098)/1-33/(2001)},
  title        = {A General Mode Matching Technique applied to Bandpass Radomes},
  volume       = {TEAT-7098},
  year         = {2001},
}