A Multiband Miniaturized Antenna Array for Robust Navigation in Airborne Applications

S. Caizzone, G. Buchner, M. Cuntz, W. Elmarissi, E. Pérez Marcos

Abstract:	Satellite navigation is becoming nowadays more and more important in very different application fields, ranging from aeronautics to bank transactions, from shipping to autonomous driving. Due to the increasing dependency from satellite navigation, also the need for robust systems, able to counteract unintentional or intentional interferences, is expanding. Robustness implies however more complicated designs, with top performance being obtained through the use of multi-antenna receivers capable of performing spatial nulling in the direction of the interference(s). On the other hand, the applications that would most profit from such robust systems are mostly mobile ones (aeronautics, UAVs, automotive), i.e. exactly the ones where the use of bigger and heavier systems poses a substantial problem. In order to overcome this limitation, the present work shows the design of a miniaturized 5 elements (4+1) antenna array, operating at L1/E1 band (with array capability) as well as at L5/E5 band (as single antenna), able to fit into a 3.5 inch footprint, i.e. compliant with the most widespread footprint for single antennas, and capable of multiband operation to meet the requirements of dual frequency multi constellation (DFMC) systems. Thanks to the extreme miniaturization and its compliance with current airborne single antenna footprint, the presented antenna array is suitable for easy integration in future airborne platforms, whilst enabling for such domains robustness-enhancing interference mitigation techniques using multi-antenna processing.
Published in:	Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019) September 16 - 20, 2019 Hyatt Regency Miami Miami, Florida
Pages:	3730 - 3737
Cite this article:	Caizzone, S., Buchner, G., Cuntz, M., Elmarissi, W., Marcos, E. Pérez, "A Multiband Miniaturized Antenna Array for Robust Navigation in Airborne Applications," Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019), Miami, Florida, September 2019, pp. 3730-3737. https://doi.org/10.33012/2019.17022
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