Lorente Catalan, Diego and Limbach, Markus and Gabler, Bernd and Esteban González, Héctor and Boria Esbert, Vicente (2022) Dual-Polarized Multilayer L-Band Asymmetric Subarray with Truncated Electric Walls Separation for Airborne SAR Applications. In: 18th European Radar Conference, EuRAD 2021. European Microwave Week (EuMW), 2022-04-02 - 2022-04-07, London, UK. doi: 10.23919/EuRAD50154.2022.9784581. ISBN 978-287487065-1.
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Abstract
A novel planar phased array of 5x4 multilayer dual polarized aperture coupled stacked patch elements, operating in L-band, with beam steering in elevation and excited with an asymmetric amplitude distribution in azimuth, is presented in this work. The proposed design exploits the restricted available antenna size (2.45λ0 x 1.97λ0) maximizing the number of array elements by means of an interelement spacing of 0.48λ0 and the use of truncated walls. The measurements of the manufactured prototype show an antenna bandwidth of almost 20%, polarization isolation greater than 23 dB and directivity values above 15 dB. Despite the close proximity among the array elements, the measured coupling levels between the feeding ports are lower than -20 dB for the center frequency of operation 1.325 GHz, which makes the proposed work suitable for airborne Synthetic Aperture Radar systems, where a high degree of integration is required
Item URL in elib: | https://elib.dlr.de/144521/ | ||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
Title: | Dual-Polarized Multilayer L-Band Asymmetric Subarray with Truncated Electric Walls Separation for Airborne SAR Applications | ||||||||||||||||||||||||
Authors: |
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Date: | 2022 | ||||||||||||||||||||||||
Journal or Publication Title: | 18th European Radar Conference, EuRAD 2021 | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||
DOI: | 10.23919/EuRAD50154.2022.9784581 | ||||||||||||||||||||||||
ISBN: | 978-287487065-1 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | planar phased array, dual-polarized aperture coupled stacked patch antenna, truncated walls, airborne SAR. | ||||||||||||||||||||||||
Event Title: | European Microwave Week (EuMW) | ||||||||||||||||||||||||
Event Location: | London, UK | ||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||
Event Dates: | 2022-04-02 - 2022-04-07 | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||||||
DLR - Research theme (Project): | R - Aircraft SAR | ||||||||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||||||||
Institutes and Institutions: | Microwaves and Radar Institute > SAR Technology | ||||||||||||||||||||||||
Deposited By: | Lorente Catalan, Diego | ||||||||||||||||||||||||
Deposited On: | 13 Oct 2021 08:01 | ||||||||||||||||||||||||
Last Modified: | 10 Aug 2023 11:59 |
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