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Computation of radome reference cases using a rotationally symmetric full wave solver

Sjöberg, Daniel LU orcid (2022) In Technical Report LUTEDX/(TEAT-7273)/1-23/(2022)
Abstract
We demonstrate how to compute radome reference cases for benchmarking
radome codes. Radomes are electrically large structures, and to facilitate the
computations a rotationally symmetric structure is assumed. We show how
to implement this in the commercial software Comsol Multiphysics, and how
to extract the relevant data for comparison. Two example geometries are
analyzed: a spherical shell radome, and an ogive shaped radome. In each
case, the radome is in the order of ten wavelengths, but it is still possible to
simulate on a regular laptop platform in about a minute. Using a platform with
more memory and spending more time to simulate more modes and synthesize
the results, reference cases for even... (More)
We demonstrate how to compute radome reference cases for benchmarking
radome codes. Radomes are electrically large structures, and to facilitate the
computations a rotationally symmetric structure is assumed. We show how
to implement this in the commercial software Comsol Multiphysics, and how
to extract the relevant data for comparison. Two example geometries are
analyzed: a spherical shell radome, and an ogive shaped radome. In each
case, the radome is in the order of ten wavelengths, but it is still possible to
simulate on a regular laptop platform in about a minute. Using a platform with
more memory and spending more time to simulate more modes and synthesize
the results, reference cases for even larger radomes with realistic feeds can be
simulated, which is suggested as a topic for future studies. Results for an
ogive shaped radome with a diameter of 30 and 50 wavelengths using a highly
symmetrical antenna are provided. (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-7273)/1-23/(2022)
pages
25 pages
publisher
Electromagnetic Theory Department of Electrical and Information Technology Lund University Sweden
report number
TEAT-7273
language
English
LU publication?
yes
id
c675ab4a-b5cd-48a5-8c3e-71c4b21acd0d
date added to LUP
2022-05-19 20:49:14
date last changed
2022-05-20 12:19:28
@techreport{c675ab4a-b5cd-48a5-8c3e-71c4b21acd0d,
  abstract     = {{We demonstrate how to compute radome reference cases for benchmarking<br/>radome codes. Radomes are electrically large structures, and to facilitate the<br/>computations a rotationally symmetric structure is assumed. We show how<br/>to implement this in the commercial software Comsol Multiphysics, and how<br/>to extract the relevant data for comparison. Two example geometries are<br/>analyzed: a spherical shell radome, and an ogive shaped radome. In each<br/>case, the radome is in the order of ten wavelengths, but it is still possible to<br/>simulate on a regular laptop platform in about a minute. Using a platform with<br/>more memory and spending more time to simulate more modes and synthesize<br/>the results, reference cases for even larger radomes with realistic feeds can be<br/>simulated, which is suggested as a topic for future studies. Results for an<br/>ogive shaped radome with a diameter of 30 and 50 wavelengths using a highly<br/>symmetrical antenna are provided.}},
  author       = {{Sjöberg, Daniel}},
  institution  = {{Electromagnetic Theory Department of Electrical and Information Technology Lund University Sweden}},
  language     = {{eng}},
  number       = {{TEAT-7273}},
  series       = {{Technical Report LUTEDX/(TEAT-7273)/1-23/(2022)}},
  title        = {{Computation of radome reference cases using a rotationally symmetric full wave solver}},
  url          = {{https://lup.lub.lu.se/search/files/118693640/TEAT_7273.pdf}},
  year         = {{2022}},
}