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Redes de antenas de microfita circularmente polarizadas moldadas sobre superfícies cilíndricas

Heckler, Marcos Vinicio Thomas and Lacava, J. C. da S. (2005) Redes de antenas de microfita circularmente polarizadas moldadas sobre superfícies cilíndricas. In: Third Workshop in Electronics, Telecommunications and Computer Engineering. JETC'05, 2005-11-17 - 2005-11-18, Lissabon, Portugal.

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Microstrip antennas are very well suited to conformal array applications. Mounted on cylindrical surfaces, most of the developments emphasize the design of N-element wraparound arrays for omnidirectional radiation in the cylindrical roll plane. The radiation characteristics for linearly and circularly polarized (CP) arrays have been studied and reported by several authors. Recently, the influence of the number of elements on the quality of the circular polarization has been investigated. Following this subject, the present paper discusses the analysis and the design of CP microstrip antenna arrays conformed on cylindrical surfaces. To illustrate the potential of the developed technique, a CP antenna operating at 2.25 GHz was designed using an effective CAD tool (namely Cylindrical), developed by the Antennas and Propagation Laboratory – LAP/ITA. The radius of the cylinder was chosen to comply with SONDA IV, a Brazilian sounding rocket. Using this element, two array topologies were analyzed. The design of the feeding network was performed using a planar simulator as an approximation because the diameter of the second stage of SONDA IV is larger than one guided wavelength. To validate our assumptions and the design procedure, two prototypes of four elements were manufactured, and the tests results for input impedance and radiation pattern show very good agreement with the simulations.

Item URL in elib:https://elib.dlr.de/19826/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Redes de antenas de microfita circularmente polarizadas moldadas sobre superfícies cilíndricas
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lacava, J. C. da S.Technical Institute of AeronauticsUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Third Workshop in Electronics, Telecommunications and Computer Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Conformal microstrip arrays, circularly polarized arrays, cylindrical arrays
Event Title:JETC'05
Event Location:Lissabon, Portugal
Event Type:national Conference
Event Start Date:17 November 2005
Event End Date:18 November 2005
Organizer:Lisbon Engineering Institute
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation (old)
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Effiziente Flugführung und Flugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation > Navigation and Control Systems
Deposited By: Heckler, Marcos Vinicio Thomas
Deposited On:23 Jan 2006
Last Modified:24 Apr 2024 19:01

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