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Horizontally Polarized Antenna Array for an Airborne Ka-PolInSAR System

Schreiber, Alicja and Limbach, Markus and Gabler, Bernd and Reigber, Andreas (2022) Horizontally Polarized Antenna Array for an Airborne Ka-PolInSAR System. In: 16th European Conference on Antennas and Propagation, EuCAP 2022. European Conference on Antennas and Propagation (EuCAP), 2022-03-27 - 2022-04-01, Madrid, Spain. ISBN 978-883129904-6.

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This paper presents a design of a horizontally polarized antenna array for a new DLR airborne Ka – band polarimetric interferometric synthetic aperture radar system with the maximum gain of 24 dB, low cross - polarization level of - 40 dB and a shaped radiation pattern with low sidelobe level in both azimuth and elevation planes below - 18 dB. It has been designed using the slotted waveguide antenna technology for the center frequency equal to 35.5 GHz. The transverse slots have been cut into the narrow waveguide wall, where the use of iris pairs placed inside enables the radiation. A suitable feeding network consisting of a conventionally H - plane T - junction power divider and a directional waveguide coupler has been also described. Based on theoretical principles, the antenna array as well as the corresponding power splitter have been developed and fabricated while meeting mechanical and electrical system demands. The measurement results of the manufactured prototype have been presented and a good agreement with requirements has been achieved.

Item URL in elib:https://elib.dlr.de/148415/
Document Type:Conference or Workshop Item (Speech)
Title:Horizontally Polarized Antenna Array for an Airborne Ka-PolInSAR System
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schreiber, AlicjaUNSPECIFIEDhttps://orcid.org/0000-0002-9837-7417UNSPECIFIED
Limbach, MarkusUNSPECIFIEDhttps://orcid.org/0000-0003-3686-5535UNSPECIFIED
Gabler, BerndUNSPECIFIEDhttps://orcid.org/0000-0003-1477-1829UNSPECIFIED
Reigber, AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-2118-5046UNSPECIFIED
Journal or Publication Title:16th European Conference on Antennas and Propagation, EuCAP 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Slotted Waveguide Antenna, non-inclined slot, polarimetric interferometry, airborne SAR system
Event Title:European Conference on Antennas and Propagation (EuCAP)
Event Location:Madrid, Spain
Event Type:international Conference
Event Dates:2022-03-27 - 2022-04-01
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Aircraft Systems
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Schreiber, Alicja
Deposited On:24 Jan 2022 06:50
Last Modified:13 Jan 2023 14:07

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