Título:
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UWB linear array for 3D microwave imaging
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Autor/a:
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Gedda, Fabrizio
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Jofre Roca, Lluís |
Abstract:
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Microwave imaging is being investigated by many research groups for its po-
tential in medical diagnostic and treatment elds. Microwave signals are to
sensitive to small changes into the dielectric properties of the objects under test
which can be related to their physiological state. The use of UWB signals (
3.1 - 10.6 GHz ) allow a good compromise between penetration and resolution.
Moreover in the last years UWB frequency range has strongly exploited in med-
ical imaging research eld, due to its characteristics of low-cost implementation
and low-power used.
The objective of this work is the design and the fabrication of multiplexed
slot antenna array, that will be used in a 3D arrayed microwave tomographic
system for medical imaging. This system is characterized by a rotation of mul-
tiplexed linear antenna array around the object under test. With the aim of
reducing the acquisition time it is replaced the vertical movement with a real
antenna array. In the chapter 1 the introduction of medical imaging will be pre-
sented and the system requirements are described. In the chapters 2 the basic
concepts of UWB microstrip slot antennas and feeding methods will be analyzed
respectively. In chapter 3 the individual array elements will be chosen and two
array con gurations will be designed. In chapter 4 the feeding networks will
be planned and simulated, the prototypes will be fabricated and the simulation
data will be compared with measurement results. Finally the calibration will be
done and the array con guration with the best performance will be chosen. In
chapter 5 the conclusions will be deduced and the future works will be proposed. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament del senyal en les telecomunicacions -Imaging systems -Broadband communication systems -Ultra-Wideband array -3D microwave imaging -Imatge, Tècniques d' -Telecomunicació de banda ampla, Sistemes de |
Derechos:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipo de documento:
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Trabajo/Proyecto fin de carrera |
Editor:
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Universitat Politècnica de Catalunya
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