Lect. 1: Introduction
● Teaching Staff
- Lecturer: Prof. Woo-Young Choi (최우영)
Office: B625, Tel: 02-2123-2874, Email: wchoi@yonsei.ac.kr
tera.yonsei.ac.kr
- T.A.’s: Myung Jin Shin (신명진) slyier55@gmail.com, 010-7159-4418
Minkyu Kim (김민규) minkyu226@gmail.com, 010-9265-9226
Office: B629, Tel: 02-2123-7709
● Class Hours
- Lecture: Tue. 1:00-1:50 pm and Thur. 2:00-3:50 pm at B031
● Goals: - Understand what EM waves are
- Learn how they behave in various media
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Lect. 1: Introduction
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Lect. 1: Introduction
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Lect. 1: Introduction
Brief History of Electromagnetics
Coulomb's Law (1785)
Charles-Augustin de Coulomb (1736 – 1806)
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Alessandro Volta (1745 – 1827)
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Voltaic Pile: First battery (1800)
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Ampère's Law (1826)
Andre-Marie Ampère (1775 – 1836)
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Faraday's Law (1831)
Michael Faraday (1791 – 1867)
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(1865)
(Gauss’s Law)
(Faraday’s Law)
(Ampere’s Law +
Displacement
Current )
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Lect. 1: Introduction
Experimental demonstration of EM waves (1888)
Heinrich Hertz (1857 – 1894)
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Guglielmo Marconi (1874-1937)
Invention of wireless transmission
Trans-Atlantic transmission (1902)
Nobel Prize in Physics (1909)
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Radio Room in the movie Titanic (1912)
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First public radio broadcast:
1910 in New York City
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First TV broadcast: 1928
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First satellite in space:
Sputnik 1 (Soviet Union) in 1957
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First commercial cell phone:
Motorola Dyna TAC in 1973
(Inventor: Martin Cooper)
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First commercial optical fiber communication in 1977
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Lect. 1: Introduction
EM waves have long history of
- Serious scientific investigation
- Very important applications
 One of the most important and (hopefully) most exciting subject to learn
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Lect. 1: Introduction
● Textbook: “Field and Wave Electromagnetics" by D.K. Cheng
● Prerequite: E&M 1 (전자기1)
● Class web page: tera.yonsei.ac.kr (Click Classes)
- Lecture notes available in PDF files
● Grades
- Quizzes: Total 25 points. Roughly once in two weeks starting on March 17, Total of 6
- Tests: Mid-term and Final, each 25 points
- Project: 15 points
- Attendance: 10 points
Absent: -0.5 point, Late: -0.25 point
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● Project
Each student group will select a topic of his/her interest in the area of electromagnetic
waves technology, investigate the selected topic and make a poster presentation at the
end of semester. Selected students will make in-class oral presentations in English.
Further details will be given later in the course.
● Lunch Meeting:
Students are encouraged to participate in lunch meetings with fellow students and the
professor for informal discussion on the course, future career plans, etc. Lunch meetings
will be held on Thursdays from 12:00 - 12:50 in B625. Sign-up sheets will be available.
Sandwiches and drinks will be provided.
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Lect. 1: Introduction
● Class Schedule (Tentative and Subject to changes)
Part I. Introduction and Review
Lect. 1: Introduction
Lect. 2: Electric fields
Lect. 3: Magnetic fields
Lect. 4: Time-varying fields
Part II. Plane Electromagnetic Waves
Lect. 5: Wave equations
Lect. 6: Plane waves
Lect. 7: Polarization
Lect. 8: Plane waves in lossy media
Lect. 9: Propagation through plasma
Lect. 10: EM waves incident at conductor
Lect. 11: Oblique incidence at conductor
Lect. 12: Normal incidence at dielectric interface
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Lect. 1: Introduction
● Class Schedule (Tentative and Subject to changes)
Part II. Plane Electromagnetic Waves (cont.)
Lect. 13: Oblique incidence at dielectric interface I
Lect. 14: Oblique incidence at dielectric interface II
Lect. 15: Total internal reflection
Part III. Transmission Lines
Lect. 15: Transmission lines
Lect. 16: Finite transmission lines
Lect. 17: Reflection in transmission lines
Lect. 18: Transients on transmission lines
Lect. 19: Transients with reactive load
Lect. 20: Smith chart
Lect. 21: Impedance matching
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Lect. 1: Introduction
● Class Schedule (Tentative and Subject to changes)
Part IV. Waveguides
Lect. 22: Solutions of EM wave Eq. in waveguides
Lect. 23: TM waves
Lect. 24: TE waves
Lect. 25: Rectangular waveguides
If time allows,
Circular waveguides, Dispersion in waveguides, Dielectric waveguides
Last week of class : Student Presentations (Poster, Oral)
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