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Structuring research on conformal antennas - an European collaboration

Sipus, Zvonimir and Persson, Patrik and Lanne, Maria and Heckler, Marcos Vinicio Thomas and Maci, Stefano and Masa-Campos, Jose Luis and Vandenbosch, Guy (2007) Structuring research on conformal antennas - an European collaboration. In: 2nd European Conference on Antennas and Propagation. EuCAP 2007, 2007-11-11 - 2007-11-16, Edinburgh (UK). ISBN 9780863418426 ISSN 0537-9989

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Abstract

A conformal antenna is defined as an antenna that conforms to a surface whose shape is mainly determined by considerations other than electromagnetic, e.g. aerodynamic or hydrodynamic considerations. This definition should be extended to antennas whose shape is not planar and whose shape is determined with specific electromagnetic reasons like coverage requirements. For example, arrays on cylindrical structures offer a possibility either to create directed beams in arbitrary direction in horizontal plane, or to create an omnidirectional pattern. Spherical arrays have the capability of directing single or multiple beams through a complete hemisphere. Such properties make conformal antennas attractive candidates for future antenna systems where a variety of beam-forming and beam-steering capabilities will be needed, and where the antennas will be integrated in the surfaces of different vehicles or platforms. For example, a modern aircraft has many antennas protruding from the structure, for navigation, various communication systems, instrument landing systems, radar altimeter etc. There can be as many as 40 different antennas (or even more), and integrating these antennas into the aircraft skin is highly desirable. The topic of this paper is the work carried out in Work Package 2.4-3 of the EU network Antenna Centre of Excellence (ACE). From the beginning of the ACE network, the basic objective is to structure better the ongoing research on conformal antennas, dispersed in several European universities or industrial Research centres. In more details, the objectives in this workpackage are: - sum up advantages and critical items for various conformal antennas; - structure continued research in direction of the most useful antenna architectures and geometries; - select benchmarking structures, which should apply to conformal antennas, and test the accuracy of software developed for designing conformal antennas; - help students/PhDs exchange between various European academies and companies. The work is split into 3 topics: 1. Full benchmarking of conformal antennas. 2. Development of “new” hybrid programs. The hybrid SD -UTD program is now able to analyse two classes of conformal arrays: waveguide elements embedded in symmetric multilayer structure (circular-cylindrical or spherical) and embedded in multilayer cylindrical structure with general cross-section (till now the program is tested with cylinders that have elliptical cross-section). The development of the hybrid method for analyzing curved frequency selective has started at the end of 2006. In the proposed new method, the FSS (i.e. the large finite array) is divided into N subarrays, and each subarray is separately analyzed with a rigorous full-wave method. The subarrays have to overlap because the same element in a subarray will have different induced physical or equivalent currents depending on whether it is simulated as an inner element or an edge element, since the edge elements “do not see” the rest of the array environment. The scattered field is calculated as a superposition of the EM field radiated by the inner parts of N subarrays. 3. Development of algorithms for optimizing beam synthesis and beam-steering. In particular, the algorithm properties, when they are applied to conformal arrays, are investigated and compared to planar equivalent cases.

Item URL in elib:https://elib.dlr.de/48258/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Structuring research on conformal antennas - an European collaboration
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sipus, ZvonimirUniversity of ZagrebUNSPECIFIED
Persson, PatrikRoyal Institute of TechnologyUNSPECIFIED
Lanne, MariaSaab Microwave SystemsUNSPECIFIED
Heckler, Marcos Vinicio ThomasUNSPECIFIEDUNSPECIFIED
Maci, StefanoUniversity of SienaUNSPECIFIED
Masa-Campos, Jose LuisPolytechnic University of MadridUNSPECIFIED
Vandenbosch, GuyCatholic University of LeuvenUNSPECIFIED
Date:May 2007
Journal or Publication Title:2nd European Conference on Antennas and Propagation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
The Institution of Engineering and Technology, UNSPECIFIED
ISSN:0537-9989
ISBN:9780863418426
Status:Published
Keywords:conformal antennas, antenna center of excelence, ACE, Antenna Group, Antennengruppe
Event Title:EuCAP 2007
Event Location:Edinburgh (UK)
Event Type:international Conference
Event Dates:2007-11-11 - 2007-11-16
Organizer:The Institution of Engineering and Technology
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L SF - Safe and Efficient Air Traffic Guidance (old)
DLR - Research area:Aeronautics
DLR - Program:L SF - Safe and Efficient Air Traffic Guidance
DLR - Research theme (Project):L - Effiziente Flugführung und Flugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Heckler, Marcos Vinicio Thomas
Deposited On:26 Nov 2007
Last Modified:15 Jan 2010 00:40

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