2025 (Current Year) Faculty Courses School of Engineering Undergraduate major in Electrical and Electronic Engineering
Waveguide Engineering and the Radio Law
- Academic unit or major
- Undergraduate major in Electrical and Electronic Engineering
- Instructor(s)
- Takashi Tomura
- Class Format
- Lecture (Face-to-face)
- Media-enhanced courses
- -
- Day of week/Period
(Classrooms) - 3-4 Fri
- Class
- -
- Course Code
- EEE.S301
- Number of credits
- 100
- Course offered
- 2025
- Offered quarter
- 2Q
- Syllabus updated
- Mar 19, 2025
- Language
- Japanese
Syllabus
Course overview and goals
Electromagnetic waves (microwaves, millimeter waves, light waves) are used for applications such as signal transmission and sensing. These applications require controlling the propagation of electromagnetic waves depending on the purpose. Controlling the mode of electromagnetic waves that propagate through waveguides can realize the branching and coupling capabilities of electromagnetic power, as well as capabilities of frequency discrimination.
The instructor in this course will explain how the field distribution and propagation velocity of electromagnetic waves are determined when propagating in representative waveguides such as a coaxial line, metallic waveguide and dielectric waveguide. The instructor will also explain the scattering matrix used for characterizing electromagnetic wave circuits, then explain the operating principle and basic design methods of typical electromagnetic wave circuits for branching and coupling capabilities, frequency discrimination capability, and nonreciprocal functions that realize direction-dependent transmission of electromagnetic waves. Furthermore, the instructor will explain the concepts of the Radio Law.
Course description and aims
By the end of this course, students should be able to:
1) Understand the characteristics of electromagnetic waves propagating in waveguides.
2) Represent the characteristics of electromagnetic wave circuits.
3) Explain and design the operation principles of representative electromagnetic wave circuits.
Corresponding educational goals are:
(1) 【Specialist skills】 Fundamental specialist skills
(4) 【Applied skills】 (inquisitive thinking and/or problem-finding skills) Organization and analysis
(7) Skills acquiring a wide range of expertise, and expanding it into more advanced and other specialized areas
Keywords
microwave, millimeter-wave, lightwave, coaxial line, metallic waveguides, dielectric waveguide, voltage and current distributions along a transmission line, impedance, standing wave, cut-off, scattering matrix, impedance matching, resonator, multi-/demultiplexer, nonreciprocal device, the Radio Law
Competencies
- Specialist skills
- Intercultural skills
- Communication skills
- Critical thinking skills
- Practical and/or problem-solving skills
- ・Applied specialist skills on EEE
Class flow
Addition to each class, students should submit homework.
Course schedule/Objectives
| Course schedule | Objectives | |
|---|---|---|
| Class 1 | Waveguides(Sec.2.1)Electromagnetic waves propagating in +z direction (Sec.1.4), Two-conductor waveguides(Sec.2.2, Sec.2.3) | Explain waveguides, electromagnetic waves propagating in +z direction, and two-conductor waveguides. |
| Class 2 | Rectangular waveguide(Sec.2.4), Waveguide modes(Sec.1.6), Transmission loss(Sec.1.7) | Explain rectangular waveguide, waveguide modes, and transmission loss. |
| Class 3 | Dielectric slab waveguide(Sec.2.5) | Explain dielectric slab waveguide. |
| Class 4 | 1-port elements(Sec.3.1), 2-port elements(Sec.3.2) | Explain 1-port elements and 2-port elements. |
| Class 5 | 3-port elements(Sec.3.3), 4-port elements(Sec.3.4) | Explain 3-port elements and 4-port elements. |
| Class 6 | Mode conversion(Sec.3.5), Nonreciprocal elements(Sec.3.6), The Radio Law and related act | Explain ｍode conversion and nonreciprocal elements. Explain the concept of the radio law. |
| Class 7 | Comprehensive exercise | Comprehensive exercise on contents from 1st to 6th lectures. |
Study advice (preparation and review)
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Textbook(s)
J. Hirokawa, "Waveguide engineering"
Paperback, Design Egg Inc.
https://www.amazon.co.jp/dp/4815026505?language=ja_JP
Amazon Kindle e-book
https://www.amazon.co.jp/dp/B0924X1T3W?language=ja_JP
Reference books, course materials, etc.
You can download course materials at Science Tokyo LMS.
M. Nakajima, "Microwave engineering," (Morikita Publishing), 1995, ISBN 978-462-771030-6
K.Sakakibara, M.Taromaru and K.Fujimori, "Wave transmission engineering," (Asakura shoten), 2019, ISBN978-4-254-22216-6
Evaluation methods and criteria
The instructor will evaluate your understanding of how the electromagnetic field distribution and propagation constant of guided modes are determined in waveguides, concepts of impedance and standing wave, and operation and design principles of waveguide circuits. Reports (to evaluate understand level) about 70%, Homework about 30%. The rerpots are in-person written exam without using references.
Related courses
- EEE.D361 ： Photonic Devices
- EEE.S361 ： Opto-electronics
- EEE.D461 ： Optoelectronics
- EEE.S411 ： Guided Wave Circuit Theory
- EEE.E211 ： Electromagnetic Fields and Waves
Prerequisites
Students are requested to have passed Electricity and Magnetism I and II and Electromagnetic Fields and Waves.