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Coherent effects in single scattering and random errors in antenna technology

Sjöberg, Daniel LU (2002) In Technical Report LUTEDX/(TEAT-7109)/1-21/(2002) TEAT-7109.
Abstract
Lack of knowledge prevents us from exactly calculating the behavior of electromagnetic

fields. We study two extremes in this respect: scattering against

randomly distributed particles (no idea of the position or orientation of the

scatterers), and random errors in antenna technology (small deviations from

what we think are the proper parameters). Random variables are used to

model our lack of knowledge, and far field expressions are studied. Using the

concept of characteristic functions from probability theory, results for arbitrary

probability distributions are obtained. We explain an anomaly in the

forward scattering direction in single scattering theory, present... (More)
Lack of knowledge prevents us from exactly calculating the behavior of electromagnetic

fields. We study two extremes in this respect: scattering against

randomly distributed particles (no idea of the position or orientation of the

scatterers), and random errors in antenna technology (small deviations from

what we think are the proper parameters). Random variables are used to

model our lack of knowledge, and far field expressions are studied. Using the

concept of characteristic functions from probability theory, results for arbitrary

probability distributions are obtained. We explain an anomaly in the

forward scattering direction in single scattering theory, present simple formulas

for the directivity, side lobe level, and beam efficiency for a general

array antenna with random errors, and a simple formula for the scattering

coefficient from a general frequency selective structure with random errors. (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-7109)/1-21/(2002)
volume
TEAT-7109
pages
21 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
4b7b7a91-9253-4a4d-bd1f-f5be6a822e69 (old id 530540)
date added to LUP
2007-09-12 11:57:32
date last changed
2016-07-06 13:39:07
@misc{4b7b7a91-9253-4a4d-bd1f-f5be6a822e69,
  abstract     = {Lack of knowledge prevents us from exactly calculating the behavior of electromagnetic<br/><br>
fields. We study two extremes in this respect: scattering against<br/><br>
randomly distributed particles (no idea of the position or orientation of the<br/><br>
scatterers), and random errors in antenna technology (small deviations from<br/><br>
what we think are the proper parameters). Random variables are used to<br/><br>
model our lack of knowledge, and far field expressions are studied. Using the<br/><br>
concept of characteristic functions from probability theory, results for arbitrary<br/><br>
probability distributions are obtained. We explain an anomaly in the<br/><br>
forward scattering direction in single scattering theory, present simple formulas<br/><br>
for the directivity, side lobe level, and beam efficiency for a general<br/><br>
array antenna with random errors, and a simple formula for the scattering<br/><br>
coefficient from a general frequency selective structure with random errors.},
  author       = {Sjöberg, Daniel},
  language     = {eng},
  pages        = {21},
  publisher    = {ARRAY(0xa24f898)},
  series       = {Technical Report LUTEDX/(TEAT-7109)/1-21/(2002)},
  title        = {Coherent effects in single scattering and random errors in antenna technology},
  volume       = {TEAT-7109},
  year         = {2002},
}