Details
Original language | English |
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Journal | IEEE Antennas and Wireless Propagation Letters |
Publication status | E-pub ahead of print - 2024 |
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.
Keywords
- Aircraft navigation, direction -finding (DF), modal analysis, receiving antennas, unmanned aerial vehicles (UAVs)
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE Antennas and Wireless Propagation Letters, 2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding
AU - Grundmann, Lukas
AU - Gerlach, Marc
AU - Schafer, Wolfgang
AU - Manteuffel, Dirk
N1 - Publisher Copyright: © 2002-2011 IEEE.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
KW - Aircraft navigation
KW - direction -finding (DF)
KW - modal analysis
KW - receiving antennas
KW - unmanned aerial vehicles (UAVs)
UR - http://www.scopus.com/inward/record.url?scp=85212637895&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2409.14958
DO - 10.48550/arXiv.2409.14958
M3 - Article
AN - SCOPUS:85212637895
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
SN - 1536-1225
ER -