A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding

verfasst von
Lukas Grundmann, Marc Gerlach, Wolfgang Schafer, Dirk Manteuffel
Abstract

A multimode multiport antenna (M3 PA), constisting of a single conducting structure, is proposed for use with the airborne collision avoidance system (ACAS). Its cupola -shaped surface is selected from a set of aerodynamically suitable and symmetric structures. The selection is based on a presented statistical evaluation procedure for direction-finding (DF) antennas and algorithms, which predicts the root mean square error (RMSE) of the estimation using characteristic modes (CMs). A demonstrator antenna and feed network is manufactured and its three ports are measured in an anechoic chamber. The results match the intended far-fields of an electric monopole and two magnetic dipoles. The presented flight test results show that the antenna is capable of unambiguous DF across the desired angular range in a real world environment.

Organisationseinheit(en)
Institut für Hochfrequenztechnik und Funksysteme
Externe Organisation(en)
f.u.n.k.e. AVIONICS GmbH
Typ
Artikel
Journal
IEEE Antennas and Wireless Propagation Letters
ISSN
1536-1225
Publikationsdatum
2024
Publikationsstatus
Elektronisch veröffentlicht (E-Pub)
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Elektrotechnik und Elektronik
Elektronische Version(en)
https://doi.org/10.48550/arXiv.2409.14958 (Zugang: Offen)
https://doi.org/10.1109/LAWP.2024.3519709 (Zugang: Geschlossen)
 

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