Course title
1M9863001
High Frequency Circuit Technology

 TANAKA Shinichi Click to show questionnaire result at 2019
Purpose of class
High-frequency circuit engineering is a field that underpins a wide range of electronic technologies, not only wireless communication but also digital devices that handle high-speed signals. The objective of this course is to develop an engineering intuition for high-speed and high-frequency signals based on the fundamentals of electromagnetics, as one of the essential competencies for electrical engineers.
Course content
This course covers high-frequency circuits that are essential for understanding the hardware of microwave communication systems. In the first half of the course, students study transmission line theory, which models high-frequency circuits as distributed-parameter systems, as well as the fundamental principles of active devices used in high-frequency applications. Based on these foundations, the course aims to develop an understanding of the operation of representative passive and active circuits. In the second half, examples of state-of-the-art high-frequency circuits in current research are introduced, and students deepen their understanding of the future directions of high-frequency circuit technologies.
Goals and objectives
  1. Students will be able to explain transmission line theory and the fundamental principles of high-frequency circuit elements.
  2. Students will be able to explain the design methodologies for high-frequency circuits.
  3. Students will be able to explain the technical challenges of high-frequency circuits required for the next generation.
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 Evaluation Total.
1. 40% 40%
2. 30% 30%
3. 30% 30%
Total. 100% -
Language
English
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1． Fundamentals of High-Frequency Circuit 1
- Transmission Line Theory
- Load and Reflection 		Rrepare for Session 1. 190minutes
2． Fundamentals of High-Frequency Circuit 2
- Reflection and Voltage Standing Wave
- Transmission Line as Circuit
- Smith Chart
- S-Parameters 		Review Session 1 and prepare for Session 2. 190minutes
3． Passive Circuits
- Transmission Lines in High Frequency Circuits
- Impendance Matching
- Transmission Line Resonators
- Directional Coulplers 		Review Session 2 and prepare for Session 3. 190minutes
4． Active Circuits 1
- Evolution of Active Devices
- Power Conversion
- Frequency Conversion
- Amplification 		Review Session 3 and prepare for Session 4. 190minutes
5． Active Circuits 2
- Fundamentals of Semiconductor
- Fundamentals of Diode
- Fundamentals of Field-Effect Transistors
- Examples of Microwave Transistors 		Review Session 4 and prepare for Session 5. 190minutes
6． Assignments

Complete a written assignment covering the content of Sessions 1 to 5. 		Review Sessions 1-5. 190minutes
7． Microwave Rctifiers
- Wireless Power Transmission
- Principle of Single Diode Rectifier
- Simulation Analysis 		Prepare for Session 7. 190minutes
8． Microwave Amplifiers 1
- Circuit Configuration
- Operating Class and Power Efficiency
- Biasing Circuit 		Review Session 7 and prepare for Session 8. 190minutes
9． Microwave Amplifiers 2
- Theory of non-sinusoidal alternating current
- Harmonic Tuning Technique
- Class-F Amplifier
- Class-E Amplifier
- Simulation Method 		Review Session 8 and prepare for Session 9. 190minutes
10． Left-Handed Metamaterial
- Composite Right-/Left-Handed Transmission Lines (CRLH TLs)
- Dispesion Characteristics
- Phase Velocity and Group Velocity
- Applications of CRLH TL Techciques 		Review Session 9 and prepare for Session 10. 190minutes
11． Recent Research Topics 1
- Microwave Rectifiers 		Review Session 10 and prepare for Session 11. 190minutes
12． Recent Research Topics 2
- High-Efficiency Microwave Amplifiers 		Review Session 11 and prepare for Session 12. 190minutes
13． Recent Research Topics 3
- Broadband Microwave Amplifiers 		Review Session 12 and prepare for Session 13. 190minutes
14． Assignments

Complete a written assignment covering the content of Sessions 7 to 14. 		Review Sessions 7-13. 190minutes
Total. - - 2660minutes
Evaluation method and criteria
Grades are based on attendance (50%) and assignments/reports (50%). A passing grade of 60 points or higher is required to earn credit.
The passing standard (60 points) is defined as the ability to qualitatively explain the essence of high-frequency circuit theory and the performance metrics of basic practical circuits.
Feedback on exams, assignments, etc.
ways of feedback specific contents about "Other"
Feedback in the class
Textbooks and reference materials
D.M.Pozar ”Microwave Engineering” (Wiley）
Prerequisites
Undergraduate-level Electromagnetics and Microwave Engineering.
Office hours and How to contact professors for questions
  • Anytime at the office.
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 Part of the curriculum is designed to reflect practical experience in the R＆D of wireless communication circuits within the industry.
Education related SDGs:the Sustainable Development Goals
  • 7.AFFORDABLE AND CLEAN ENERGY
  • 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
  • 12.RESPONSIBLE CONSUMPTION & PRODUCTION
Last modified : Tue Mar 17 04:07:17 JST 2026