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  4. A flexible surface description for arbitrarily shaped dielectric lens antennas
 
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A flexible surface description for arbitrarily shaped dielectric lens antennas

Publikationstyp
Journal Article
Date Issued
2015-01-29
Sprache
English
Author(s)
Jaschke, Thomas  orcid-logo
Rohrdantz, Benjamin  
Jacob, Arne  
Institut
Hochfrequenztechnik E-3  
TORE-URI
http://hdl.handle.net/11420/7190
Journal
Frequenz  
Volume
69
Issue
1-2
Start Page
29
End Page
37
Citation
Frequenz 1-2 (69): 29-37 (2015-01-29)
Publisher DOI
10.1515/freq-2014-0124
Scopus ID
2-s2.0-84921368107
A method to efficiently describe arbitrarily shaped dielectric lens antennas based on spherical harmonics is proposed. It makes use of a Fourier-Laplace series and requires a low number of expansion coefficients, only. Symmetries can be included to impose special geometries or to further reduce the number of coefficients. The efficiency of the approach enables a fast optimization of the surface. This is particularly useful for electrically small lenses. Three exemplary lens designs based on different specifications are obtained through optimization. The manufacturing is discussed and the radiation characteristics are explored and validated through measurements.
Subjects
dielectric lens antenna
DLA
Fourier-Laplace series
shaped beam
surface description
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