Radio Wave Engineering 2

Course title

F0037000

Middle-level Diploma Policy (mDP)

Program / Major	mDP	Goals
Information and Communications Engineering	B-3	最先端のシステムやネットワークに対応できる高度な専門知識や技能を習得することができる。

Purpose of class

This course aims for students to understand the fundamental properties of electromagnetic waves, which are crucial for mobile communications such as 5G and wireless LAN technologies such as Wi-Fi. In addition, students will acquire basic knowledge of antenna theory and radio wave transmission, which are essential for the design and analysis of wireless communication systems.

Course description

Subsequent to Radio Wave Engineering I, this course provides fundamental topics related to radio waves, which are crucial in information transmission through communication systems.
First, the course expands on the concept of voltage and current waves to introduce the properties of electromagnetic waves.
Next, students will acquire an understanding of skin effect and the resistance at radio frequencies in transmission lines, which are essential for engineers working with high-frequency communication systems. Finally, the course will cover higher-order mode transmission waves, including electromagnetic field transmission in waveguides.

Goals and objectives

Students can explain that the voltage and current on a transmission line are quantities obtained by integrating the electric and magnetic fields over the line’s cross section.
Students can explain, for a TEM-wave transmission line, that the electric and magnetic fields have no longitudinal components in the direction of propagation, and describe the characteristics of the electromagnetic field distribution in the transverse cross section.
Students can calculate the skin depth and high-frequency resistance related to radio-wave propagation in conductive media.
Based on the definition of cutoff frequency in waveguides and transmission lines, students can explain the operating principles of the propagation of the fundamental mode and higher-order modes.

Relationship between 'Goals and Objectives' and 'Course Outcomes'

	Term-end exam	Total.
1.	25%	25%
2.	25%	25%
3.	25%	25%
4.	25%	25%
Total.	100%	-

Evaluation method and criteria

- Evaluation method
Term-end examination (100%)

- criteria
More than 60％ correctly answered questions out of the exercise questions on Reference book (1) is needed.

Language

Japanese

Class schedule

	Class schedule	HW assignments (Including preparation and review of the class.)	Amount of Time Required
1.	Course content and objectives of Radio Wave Engineering 2	Look through the syllabus.	190minutes
2.	1. Voltage-current and electromagnetic waves - Correspondence between the telegrapher’s equations and Maxwell’s equations	Reference book (2) pp. 329-332 Reference book (2) pp. 364-373	190minutes
3.	1. Voltage-current and electromagnetic waves - Derivation of the telegrapher’s equations	Reference book (2), pp.364-373	190minutes
4.	1. Voltage-current and electromagnetic waves - Poynting vector	Reference book (2), pp.364-373	190minutes
5.	2. TEM waves - Definition - Transmission-line analysis and circuit theory - Transverse electromagnetic field distribution and static electromagnetic field distribution	Reference book (2), pp.364-373	190minutes
6.	3. Radio wave propagation in conducting media - Overview - Organization of relations derived from Maxwell’s equations	Reference book (2), pp.311-315	190minutes
7.	3. Radio wave propagation in conducting media - Maxwell’s equations in conductive media - Propagation constant and characteristic Impedance	Reference book (2), pp.311-315	190minutes
8.	3. Radio wave propagation in conducting media - Skin effect	Reference book (2), pp.311-315	190minutes
9.	3. Radio wave propagation in conducting media - Derivation of high-frequency resistance	Reference book (2), pp.311-315	190minutes
10.	4. Higher-order modes of transmission waves - Overview - Waveguide propagation modes	Reference book (2), pp.141-149	190minutes
11.	4. Higher-order modes of transmission waves - Operating conditions - Phase velocity and wavelength of higher-order mode waves	Reference book (2), pp.141-149	190minutes
12.	4. Higher-order modes of transmission waves - Polarization - Polarizer	Reference book (1), pp.141-149	190minutes
13.	4. Higher-order modes of transmission waves - Propagation modes in a parallel-plate waveguide	Reference book (1), pp.141-149	190minutes
14.	Final examination and comprehensive course review	Have a further understanding of the overall topics that were covered using the Reference books (1),(2).	190minutes
Total.	-	-	2660minutes

Feedback on exams, assignments, etc.

ways of feedback	specific contents about "Other"

Textbooks and reference materials

References
(1) Kohei Hongo: Basics in Radio Engineering, Jikkyo Shuppan Co., Ltd.
(2) Nobuaki Kumagai: Foundations of electromagnetism, Ohmsha Ltd.

Prerequisites

The following subjects should be fulfilled.
Radio Wave engineering 1, Electromagnetism 1・2, and Vector Analysis

Office hours and How to contact professors for questions

Lunch break after the class（12:30-13:00),
or please contact by e-mail

Regionally-oriented

Non-regionally-oriented course

Development of social and professional independence

Course that cultivates an ability for utilizing knowledge

Active-learning course

N/A

Course by professor with work experience

Work experience	Work experience and relevance to the course content if applicable
Applicable	A lecturer was engaged in the research and development of wireless communication systems and antennas. This experience is used to provide lectures on the basic theory and practical examples of radio wave propagation and antennas.

Education related SDGs:the Sustainable Development Goals

9.INDUSTRY, INNOVATION AND INFRASTRUCTURE

Last modified : Sat Mar 14 13:41:17 JST 2026