Propagation and Radiation (Electromagnetics)
Objectives
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The course aims at providing the students with basic on the “Electromagnetics” scientific area.
Objectives: Learning about
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General characterization
Code
2184
Credits
6.0
Responsible teacher
João Francisco Martinho Lêdo Guerreiro, Paulo da Costa Luís da Fonseca Pinto
Hours
Weekly - 8
Total - 45
Teaching language
Português
Prerequisites
Bibliography
Maria João Martins, Isabel Ventim Neves, “Propagação e Radiação de Ondas Eletromagnéticas”, 2ª edição, 2018, LIDEL
M. de Abreu Faro, "Propagação Guiada, Técnica AEIST, 1984
M. de Abreu Faro, "Radiação, Técnica AEIST, 1980
R.E. Collin, "Antennas and Radiowave Propagation", MacGraw-Hill, 1999
Teaching method
Available soon
Evaluation method
The final classification have both a pratical (20%) and a theorical part (80%).
In order to obtain the pratical classification the student must work in the Laboratory sessions, and present the related Repports.
For the theorical classification the student may realise 2 proofs with problems and theorical questions and/or one final exame.
Subject matter
Wave concept, fase and fase velocity. Differential and integral forms of Maxwell equations, and physical interpretation. Wave popagation in free space and in bounded media: Snell laws, total reflection and power transfer. Guided wave boundary conditions, modal propagation and cuttoff. Rectangular waveguides, transmission lines and optical miltimode fibres. Vector ans scalar potencials, and the far radiated field properties. Duality of Maxwell equations. Radiation from very small structures: current element and elementar aperture. Fundamental concepts related to emitting and receiving antennas and radiated field. Standing wave linear antennas: radiation diagrams, self and mutual impedances. Antena array fundamentals, and antenna facing the gound application: radiation diagrams and gain calculation. Aperture antennas: electromagnetic horns.