Study of thermal noise generated in a Vivaldi antenna using the Improved Wheeler Cap method

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DOIResolve DOI: http://doi.org/10.1109/LAWP.2011.2169769
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TypeArticle
Journal titleIEEE Antennas and Wireless Propagation Letters
Volume10
Pages10471050; # of pages: 4
SubjectAntenna measurements; radio astronomy; Vivaldi antennas
AbstractWe analyze sources of inefficiency in a single Vivaldi antenna. The analysis is based on simulations of antenna radiation efficiencies and measurement data obtained via the Improved Wheeler Cap (IWC) method. The accuracy of the IWC method is established in full-wave simulation (HFSS) by comparison to metal loss computation in method-of-moment simulation (FEKO) and efficiency calculation of a lossless Vivaldi antenna. These results suggest reliability of the IWC method. The method is then used to investigate sources of losses in the antenna.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Herzberg Institute of Astrophysics
Peer reviewedYes
NPARC number19762627
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Record identifier8de36343-6e50-4e4d-8c5b-766dbd7d6b9d
Record created2012-04-02
Record modified2016-05-09
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