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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), pp. 1-4. CADFEM GmbH. ANSYS Conference & CADFEM User's Meeting (ACUM), 2009-11-18 - 2009-11-20, Leipzig, Germany.

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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.

Item URL in elib:https://elib.dlr.de/63091/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Efficient Design of a C-band Aperture-Coupled Stacked Microstrip Array Using Nexxim and Designer
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Di Maria, AlbertoUNSPECIFIEDhttps://orcid.org/0000-0001-6867-1191UNSPECIFIED
Date:19 November 2009
Journal or Publication Title:Proceedings of ANSYS Conference & CADFEM User's Meeting (ACUM)
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
Publisher:CADFEM GmbH
Keywords:C-band antenna microstrip array design Nexxim Designer
Event Title:ANSYS Conference & CADFEM User's Meeting (ACUM)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Start Date:18 November 2009
Event End Date:20 November 2009
Organizer:CADFEM GmbH, ANSYS Germany GmbH
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Flugzeug-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Di Maria, Alberto
Deposited On:26 Apr 2010 11:09
Last Modified:24 Apr 2024 19:28

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