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Efficient Design of a C-band Aperture-Coupled Stacked Microstrip Array Using Nexxim and Designer

Di Maria, Alberto (2009) Efficient Design of a C-band Aperture-Coupled Stacked Microstrip Array Using Nexxim and Designer. In: Proceedings of ANSYS Conference & CADFEM User's Meeting (ACUM) (Artikel-Nr. UM2009-CD), Seiten 1-4. CADFEM GmbH. ANSYS Conference & CADFEM User's Meeting (ACUM), 2009-11-18 - 2009-11-20, Leipzig, Germany.

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Kurzfassung

An array antenna suitable for an airborne SAR system is considered. The radiating element consists of two stacked microstrip patches that are coupled to a microstrip line by a slot in the intervening ground plane. The antenna operates at C-band, is capable of dual polarization and shows a bandwidth equal to 800MHz. This presentation details the efficient design of this antenna taking benefit from the Solver-on-Demand feature of the Nexxim and Designer simulators. Every antenna component has been designed separately with a fully parametrized model and has been easily tuned and optimized with Designer, to meet the dimensional and frequency requirements. These components include transmission lines, optimum mitered bends, particularly shaped tee junctions and the stacked patch antenna element itself. The individual components are then assembled and interconnected in the Nexxim circuit simulator to form the whole array. The assembly is tuned and optimized using the speed capability of Nexxim, but maintaining the accuracy of the full wave model assured by Designer. The Solver-on-Demand feature lets us choose which part of the antenna will be solved with a full wave analysis and which part will be solved with a simple circuit simulation. The time savings using this combined full-wave/circuit design is significant, furthermore this combination also enables improved design and more accurate results compared to those obtained applying Designer and Nexxim alone.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Efficient Design of a C-band Aperture-Coupled Stacked Microstrip Array Using Nexxim and Designer
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Di Maria, Albertoalberto.dimaria@dlr.de
Datum:19 November 2009
Erschienen in:Proceedings of ANSYS Conference & CADFEM User's Meeting (ACUM)
Seitenbereich:Seiten 1-4
Verlag:CADFEM GmbH
Status:veröffentlicht
Stichwörter:C-band antenna microstrip array design Nexxim Designer
Veranstaltungstitel:ANSYS Conference & CADFEM User's Meeting (ACUM)
Veranstaltungsort:Leipzig, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2009-11-18 - 2009-11-20
Veranstalter :CADFEM GmbH, ANSYS Germany GmbH
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Flugzeug-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Hinterlegt von: Alberto Di Maria
Hinterlegt am:26 Apr 2010 11:09
Letzte Änderung:26 Apr 2010 11:09

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