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Analysis of rectangular patches conformed on cylindrical surfaces with the discrete mode matching

Heckler, Marcos Vinicio Thomas and Dreher, Achim (2009) Analysis of rectangular patches conformed on cylindrical surfaces with the discrete mode matching. Joint 5th ESA Workshop on Millimetre Wave Technology and Applications and 31st ESA Antenna Workshop, 18-20 May 2009, Noordwijk, The Netherlands.

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Abstract

The research in the field of microstrip antennas and arrays has boomed in the last three decades, due to several improvements made in the fabrication of microwave laminates with low losses. Owing to their favourable aerodynamic profile, low weight and low cost for mass production, the range of applications is now very broad and one can find such antennas installed on mobile platforms, satellites, etc. By using flexible substrates, microstrip antennas may be conformed (installed) on curved surfaces. Typical applications are antennas for sounding and launching rockets, aircraft, etc. Whereas the research on simple microstrip structures with planar cross sections has nearly achieved maturity, the development of effective numerical techniques for conformal antennas is still far behind. Several methods have been proposed to the analysis of such antennas. Volumetric techniques, such as the finite element method (FEM) and the finite-difference time domain (FDTD) use 3D meshes to discretize the computational domain. This leads to the need of large computational memory and long computing times. In this paper, the analysis of rectangular patches conformed on cylindrical surfaces under the application of the discrete mode matching method (DMM) will be discussed. This technique employs the Green’s function in the spectral domain, which is obtained using a full-wave equivalent circuit (FWEC) that models the layered structure, so that fast and accurate analyses can be performed. In the DMM, the computational domain must be bounded by suitable lateral boundary conditions. For the analysis of microstrip antennas, absorbing boundaries are used that will be described in the final version of this paper. To demonstrate the technique, calculations of the resonance frequencies of patch antennas will be shown. In this case, an eigenvalue problem has to be solved. The radiation pattern at the resonance frequency is also computed. Validations of our results have been done with the cavity model and good agreement between the results obtained with both techniques has been achieved.

Item URL in elib:https://elib.dlr.de/57903/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Analysis of rectangular patches conformed on cylindrical surfaces with the discrete mode matching
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heckler, Marcos Vinicio ThomasUNSPECIFIEDUNSPECIFIED
Dreher, AchimUNSPECIFIEDUNSPECIFIED
Date:May 2009
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1
Page Range:pp. 161-167
Status:Published
Keywords:Antennengruppe, Discrete mode matching method, DMM, conformal microstrip antennas, Antenna Group
Event Title:Joint 5th ESA Workshop on Millimetre Wave Technology and Applications and 31st ESA Antenna Workshop
Event Location:Noordwijk, The Netherlands
Event Type:international Conference
Event Dates:18-20 May 2009
Organizer:European Space Agency (ESA)
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 Jun 2009 10:43
Last Modified:10 Mar 2010 11:04

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