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Autor(en):
S. Orasch, H. Flühr, P. Ortner, W. Stocksreiter, R. Findenig
Zusammenfassung:
Numerical analyses offer the possibility of computing antenna characteristics such as radiation patterns without the need for complex measurement methods. An exact knowledge about the radiation pattern is required to estimate and simulate the coverage of a passive radar system. A log-periodic dipole antenna (LPDA) is commonly employed in passive radar because of its broadband characteristics. This paper proposes a numerical simulation to obtain fundamental antenna parameters by MATLAB. A practical antenna measurement is performed to verify the result of the numerical analysis. In order to demonstrate the necessity of exact radiation patterns, the effect of inaccuracies is illustrated by coverage maps. It can be observed that distinct patterns are computed and measured for specific angles. For this reason the simulation model is investigated to show how frequency and angle affect the computation. Finally recommendations for enhancing the meshing and measurement setup are presented to improve the validity of the results.
Veranstaltung:
Deutscher Luft- und Raumfahrtkongress 2023, Stuttgart
Verlag, Ort:
Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2023
Medientyp:
Conference Paper
Sprache:
englisch
Format:
21,0 x 29,7 cm, 9 Seiten
URN:
urn:nbn:de:101:1-2023102712434089037822
DOI:
10.25967/610400
Stichworte zum Inhalt:
Antenna Measurement, Passive Radar, Numerical Simulation
Verfügbarkeit:
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Zitierform:
Orasch, S.; Flühr, H.; et al. (2023): Numerical Analysis and Verification of a Passive Radar Antenna. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/610400. urn:nbn:de:101:1-2023102712434089037822.
Veröffentlicht am:
27.10.2023