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Polarization optimization of compact antenna arrays for direction of arrival estimation

: Pralon, M.; Hein, M.; Thomä, R.; Pralon, L.; Pompeo, B.; Beltrao, G.; Galdo, G. del; Landmann, M.


IEEE Aerospace and Electronic Systems Society -AESS-; IEEE Antennas and Propagation Society; European Association on Antennas and Propagation -EurAAP-:
14th European Radar Conference : 11-13 October 2017, Nuremburg, Germany
Piscataway, NJ: IEEE, 2018
ISBN: 978-2-87487-049-1
ISBN: 978-1-5386-3865-8
European Radar Conference (EURAD) <14, 2017, Nuremberg>
European Microwave Week (EuMW) <2017, Nuremberg>
European Microwave Conference (EuMC) <47, 2017, Nuremberg>
Conference Paper
Fraunhofer IIS ()

Analysis of polarization optimization of dual-polarized compact arrays for direction finding, which include Decoupling and Matching Networks (DMNs) comprised of distributed elements, is performed in this paper. The CRLB for two-dimensional Direction of Arrival (DoA) estimation is used as a figure of merit for the performance of five elements dual-polarized circular L-Quad arrays, assuming different interelement spacings and the correspondent DMNs, designed with the aim of decoupling and matching the compact arrays, with interelement spacing smaller than half of the free-space wavelength. Owing to the dual-polarimetric characteristic of the antenna array investigated, it is possible to optimize the DMN to decouple and match the array elements for the direction finding of impinging electromagnetic wavefronts.