A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding
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.
Details
- Organisation(s)
-
Institute of Microwave and Wireless Systems
- External Organisation(s)
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f.u.n.k.e. AVIONICS GmbH
- Type
- Article
- Journal
- IEEE Antennas and Wireless Propagation Letters
- Volume
- 24
- Pages
- 873 - 877
- No. of pages
- 5
- ISSN
- 1536-1225
- Publication date
- 04.2025
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic version(s)
-
https://doi.org/10.1109/LAWP.2024.3519709 (Access:
Closed
)
https://doi.org/10.48550/arXiv.2409.14958 (Access: Open )
-
Details in the research portal "Research@Leibniz University"
