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Synthesis of a Phased Array with Planar Near-Field Techniques Based on Far-Field Measurements of a Sub-Array n a CATR

Gabler, Bernd and Lorente Catalan, Diego and van de Coevering, Leopold G.T. (2021) Synthesis of a Phased Array with Planar Near-Field Techniques Based on Far-Field Measurements of a Sub-Array n a CATR. In: 2021 Antenna Measurement Techniques Association Symposium, AMTA 2021. Institute of Electrical and Electronics Engineers (IEEE). Antenna Measurement Techniques Association (AMTA), 2021-10-24 - 2021-10-29, Daytona Beach, FL, USA. doi: 10.23919/AMTA52830.2021.9620679. ISBN 978-1-7362351-1-9. ISSN 2474-2740.

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Official URL: https://ieeexplore.ieee.org/document/9620679

Abstract

Phased array antennas are often built from sub-arrays with identical or symmetrical layout. At an early project stage, performance verification measurements of the sub-array are valuable to proof the single module design. However, the characteristics of the final antenna are questionable without further processing. This work presents a concept that is based on far-field measurements of a sub-array in a Compact Antenna Test Range (CATR) in conjunction with planar near-field (PNF) processing to synthesize the entire phased array antenna characteristics. The procedure is explained with an example of a dual linear polarized L-band planar phased array antenna for an airborne synthetic aperture radar application. It is shown that the measured sub-array can be complemented by the synthesized twin to evaluate the characteristics of a final antenna that is not yet available in this form. The resulting performance of the synthesized entire phased array is presented and compared with simulations. The presented post-processing method would be beneficial to characterizing radiation patterns of large phased arrays by measuring only sub-arrays in a limited test-zone with any measurement principle. URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9620679&isnumber=9620537

Item URL in elib:https://elib.dlr.de/143292/
Document Type:Conference or Workshop Item (Speech)
Title:Synthesis of a Phased Array with Planar Near-Field Techniques Based on Far-Field Measurements of a Sub-Array n a CATR
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gabler, BerndBernd.Gabler (at) dlr.dehttps://orcid.org/0000-0003-1477-1829
Lorente Catalan, DiegoDiego.LorenteCatalan (at) dlr.dehttps://orcid.org/0000-0002-7905-1294
van de Coevering, Leopold G.T.March Microwave Systems B.V.UNSPECIFIED
Date:25 October 2021
Journal or Publication Title:2021 Antenna Measurement Techniques Association Symposium, AMTA 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.23919/AMTA52830.2021.9620679
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDAntenna Measurement Techniques Association, Inc. (AMTA), https://www.amta.orgUNSPECIFIED
Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Series Name:Antenna Measurement Techniques Association Symposium (AMTA), 2021
ISSN:2474-2740
ISBN:978-1-7362351-1-9
Status:Published
Keywords:Antenna Measurements, Compact Antenna Test Range, CATR, Planar Near-Field, Phased Array, Planar Antennas, Radar antennas
Event Title:Antenna Measurement Techniques Association (AMTA)
Event Location:Daytona Beach, FL, USA
Event Type:international Conference
Event Dates:2021-10-24 - 2021-10-29
Organizer:Antenna Measurement Techniques Association, Inc. (AMTA)
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 - SAR Expert Support Lab
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Gabler, Bernd
Deposited On:13 Sep 2021 08:34
Last Modified:13 Dec 2021 07:23

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