Gabler, Bernd und Schreiber, Alicja (2023) Excitation Coefficient Determination for an Antenna Elevation Network Using Installed Performance Radiation Measurements. In: 17th European Conference on Antennas and Propagation, EuCAP 2023. Institute of Electrical and Electronics Engineers (IEEE). European Conference on Antennas and Propagation (EuCAP), 2023-03-27 - 2023-03-31, Florence, Italy. doi: 10.23919/EuCAP57121.2023.10133745. ISBN 978-883129907-7.
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Offizielle URL: https://ieeexplore.ieee.org/document/10133745
Kurzfassung
Phased array antennas are typically designed from a set of largely similar radiating elements that are fed by a beam forming network (BFN). The ambient structure thereby impacts the installed performance and needs to be considered in the excitation coefficients determination. However, obtaining reliable results with purely numerical tools for aerospace composite material structures is questionable without electromagnetic parameter investigation. This work describes a method based on individual far-field measurements of the radiating sub-arrays in a Compact Antenna Test Range (CATR). The full array pattern is synthesized by planar near - field (PNF) techniques. Thereby, the excitation coefficients are optimized to mitigate the actual structure influence without the need for additional electromagnetic material properties investigation. The procedure is exemplified with a linear polarized Ka-band phased array for an airborne synthetic aperture radar application. Individual on structure slotted waveguide antenna (SWA) element measurements, excitation coefficients determination and the synthesized radiation pattern are shown. In a proof of concept with structures that are assumed perfectly conductive, measurement-based processing results are compared with simulations.
elib-URL des Eintrags: | https://elib.dlr.de/202967/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag, Poster) | ||||||||||||
Zusätzliche Informationen: | AMTA convened session “Satellite Antenna Measurements” Finalist Best Measurement Paper Award | ||||||||||||
Titel: | Excitation Coefficient Determination for an Antenna Elevation Network Using Installed Performance Radiation Measurements | ||||||||||||
Autoren: |
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Datum: | 27 März 2023 | ||||||||||||
Erschienen in: | 17th European Conference on Antennas and Propagation, EuCAP 2023 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
DOI: | 10.23919/EuCAP57121.2023.10133745 | ||||||||||||
Herausgeber: |
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Verlag: | Institute of Electrical and Electronics Engineers (IEEE) | ||||||||||||
ISBN: | 978-883129907-7 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | antenna measurements, phased arrays, beam forming, post-processing techniques, far-field, near-field. | ||||||||||||
Veranstaltungstitel: | European Conference on Antennas and Propagation (EuCAP) | ||||||||||||
Veranstaltungsort: | Florence, Italy | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 27 März 2023 | ||||||||||||
Veranstaltungsende: | 31 März 2023 | ||||||||||||
Veranstalter : | European Association on Antennas and Propagation (EurAAP) | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - SAR-Expert-Support-Lab | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie | ||||||||||||
Hinterlegt von: | Gabler, Bernd | ||||||||||||
Hinterlegt am: | 26 Feb 2024 12:20 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 21:03 |
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