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Antenna Range Measurements for Airborne Remote Sensing Antennas

Gabler, Bernd and Kosc, Alicja and Limbach, Markus (2018) Antenna Range Measurements for Airborne Remote Sensing Antennas. In: 2017 11th European Conference on Antennas and Propagation, EUCAP 2017. Institute of Electrical and Electronics Engineers (IEEE). European Conference on Antennas and Propagation (EuCAP), 2018-04-09 - 2018-04-13, London, United Kingdom.

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Abstract

The DLR Compact Test Range (CTR) is a dual reflector compact range in an electromagnetically shielded chamber for antenna and Radar Cross Section (RCS) measurements under far-field conditions [1]. The quiet zone dimensions allow an evaluation of a volume under test, containing the antenna under test (AUT) in position on the original support structure and surface. Precise in-situ parameters offer extra information about the installed AUT characteristics. These properties are particularly substantial for the radiometric and the polarimetric correction of the propagating signals in imaging microwave sensors, such as Synthetic Aperture Radar (SAR) instruments. F-SAR [2] is a high-resolution multi-frequency fully polarimetric airborne SAR with interferometric capabilities that is developed and operated by the DLR Microwaves and Radar Institute. Spherical swept frequency antenna measurements with continuous moving axis and forward/reverse scanning on offset position AUTs impose specific demands on the analysis. Higher order modes that are present due to test setup and physical constraints are considered in the post-processing. Still, stray signals from the antenna carrying aircraft structure in the proximity contribute to the antenna pattern and remain unfiltered. The particular requirements and status of the applied measurement and processing techniques are described.

Item URL in elib:https://elib.dlr.de/118380/
Document Type:Conference or Workshop Item (Poster)
Title:Antenna Range Measurements for Airborne Remote Sensing Antennas
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gabler, BerndBernd.Gabler (at) dlr.dehttps://orcid.org/0000-0003-1477-1829
Kosc, AlicjaAlicja.Kosc (at) dlr.deUNSPECIFIED
Limbach, MarkusMarkus.Limbach (at) dlr.dehttps://orcid.org/0000-0003-3686-5535
Date:9 April 2018
Journal or Publication Title:2017 11th European Conference on Antennas and Propagation, EUCAP 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Status:Published
Keywords:Compact Range, FFT-Filter, SWE, MARS, spherical antenna measurement, airborne SAR
Event Title:European Conference on Antennas and Propagation (EuCAP)
Event Location:London, United Kingdom
Event Type:international Conference
Event Dates:2018-04-09 - 2018-04-13
Organizer:EurAAP
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben SAR-Expert-Support-Lab
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Gabler, Bernd
Deposited On:26 Jan 2018 08:45
Last Modified:08 Nov 2018 08:18

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