Electromagnetic Waves

Code:

EEC0021

Acronym:

OELE

Keywords
Classification	Keyword
OFICIAL	Telecommunications
OFICIAL	Physics

Instance: 2009/2010 - 2S

Active?	Yes
Web Page:	http://paginas.fe.up.pt/~mines/OE/
Responsible unit:	Fundamental Sciences and Electrotechnics
Course/CS Responsible:	Master in Electrical and Computers Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEEC	66	Syllabus since 2007/2008	2	-	8	87	213

Teaching language

Portuguese

Objectives

The main aim of this course unit is to endow students with technical knowledge (CDIO Syllabus 1.1, 1.2 and 1.3) related to:
• Wave phenomena on transmission lines
• Transient phenomena on transmission lines
• Propagation of plane electromagnetic in lossless and lossy media
• Polarization of electromagnetic waves
• Energy transported by a wave
• Wave incidence in different environments and angles
• Guided propagation electromagnetic waves
• Radiation of electromagnetic waves
• Antenna functioning: principles

This course unit also aims to develop students’ personal and professional skills regarding engineering reasoning (CDIO Syllabus 2.1).

Program

Introduction, objectives and ways of operation; Presentation of course unit aims, bibliography and assessment; Revision of concepts related to phasors.
Transmission lines; Electrical model of a transmission line; General equations; Propagation of waves on transmission lines; Power flux; Terminated lines with arbitrary impedance; Smith’s diagram; Impedance adaptation; Transient
Plane electromagnetic waves; Maxwell equations; Wave and Helmholtz equation; Plane waves in finite lossless media: phase velocity; intrinsic impedance; Doppler effect; plane waves polarization; Plane waves in lossy media: propagation, attenuation and phase constants; lossless dielectric media and good conductors; propagation distance
Group velocity; electromagnetic energy flux and Poynting vector; Interface between different media: boundary conditions; Snell’s laws of reflexion and refraction; total reflexion, reflexion and transmission coefficients; Brewster’s angle.
Waveguides, cavities and optical fibres; electromagnetic waves in waveguides; transverse electromagnetic wave; transverse magnetic waves; transverse electric waves; parallel-plate waveguides: TM and TE waves; transport speed of energy; attenuation; Rectangular waveguides: TM and TE waves; attenuation; Circular waveguides: Bessel functions; TM and TE waves; Cavities: rectangular and circular cavities; quality factor; Planar dielectric guides: TM and TE waves; relationship between modal analysis and geometrical optics; graded refractive index; Cylindrical dielectric guides: hybrid waves; characteristic equation; monomode and multimode optical fibres;
Antennas and radiation; Elementary electric dipole; Elementary magnetic dipole; Antenna radiation pattern; Antenna parameters; Thin linear antennas; Groups of antennas.

Mandatory literature

Cheng, David K.; Field and wave electromagnetics. ISBN: 0-201-12819-5

Complementary Bibliography

Kraus, John D.; Electromagnetics with applications. ISBN: 0-07-116429-4
Inan, Umran S.; Engineering electromagnetics. ISBN: 0-8053-4423-3
Demarest, Kenneth R.; Engineering electromagnetics. ISBN: 0-02-328521-4

Teaching methods and learning activities

Theoretical classes: presentation of concepts and mathematical tools which are necessary to understand the program.
Theoretical-practical classes: discussion and resolution of problems; Students will be asked to solve some simple problems (they will be assessed).
Laboratory classes: To carry out some laboratory assignments to present the program. Students will be asked to write reports about them.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Attendance (estimated)	Participação presencial	72,00
Final exam	Exame	3,00		2010-07-23
	Total:	-	0,00

Amount of time allocated to each course unit

Description	Type	Time (hours)	End date
Study for final exam	Estudo autónomo	40	2010-07-23
Study during semester	Estudo autónomo	100	2010-06-09
	Total:	140,00

Eligibility for exams

To be admitted to exams, students:
• cannot miss more theoretical-practical classes than allowed by the rules, i.e. 25% of theoretical-practical classes;
• have to do at least 2 laboratory assignments;
• have to reach a minimum grade of 35% in the exercises;
• have to reach a minimum grade of 50% in the laboratory assignments.

Calculation formula of final grade

The assessment of this course unit is made by continuous assessment with final exam. It is divided into two components:

1. CONTINUOUS ASSESSMENT (CA): This component comprises 8 to 10 exercises and 3 laboratory assignments. The assessment of this component is based on the following formula:
CA = (2*E + L)/3
E: average grade of the exercises (the two exercises with the worse results will not be taken into account)
L: average grade of the laboratory assignments

2. FINAL EXAM (E): A closed book exam. Students can only use a form (it will be provided).

Final Grade (F) is based on the grade of the final exam and the grade of the continuous assessment using the following formula:
0.55*E + 0.15*CA
To complete the course unit, students have to reach a minimum grade of 35% in the exam.
Students, who reach a 19 or a higher grade, have to attend an oral exam.

Special assessment (TE, DA, ...)

Working students and students who attended this course unit in the year 2008/2009, do not need to attend classes.
Students, who do not need to attend classes, will be assessed based on a final exam.
However, these students can choose to take continuous assessment and they have to enrol in practical classes. This option is irreversible. See the above mentioned rules to the admission to exams.

Classification improvement

Students can improve their grades by attending a written exam.
Students, who attended this course unit in 2009/2010, will be assessed in the following way, if they choose to improve their marks: F=0.15*L+0.85*E. Otherwise they will keep their previous grades.
Students’ final grade will be the grade of the exam, if they choose to improve their marks. Otherwise they will keep their previous grades.

Observations

OFFICE HOURS:
CDP- Carlos Pintassilgo (Office I – 115) – Wednesday from 10 am to 11.30 am
ACM- Aníbal Matos (Office I- 316) – Monday from 8 am to 9 am
MIC – Maria Inês Carvalho (Office I- 313) – Wednesday from 9am to 12 am