Workshop Program

In 6G communications, modulated signals with higher bandwidths and more complex schemes are employed to achieve ultra-high speed and large-capacity data transmission. For power amplifiers, this requires both high-efficiency and wideband operation. Moreover, accurate high-frequency transistor modeling is essential for their development.
This course will cover the fundamentals of high-efficiency, wideband power amplifier for 6G, along with transistor modeling techniques. Recent examples and practical implementations will also be presented.

Keyword ： 6G, Modeling, Transistor, Power Amplifier, Wideband, High-Efficiency, Harmonic-Tuning, Doherty, LMBA

Systems that use radio waves have come to be used in a wide range of fields, including various types of communication, sensing, and power transmission. Antennas are an essential technology for using radio waves, and it is also essential to measure their characteristics for design validation or certification.
This course will explain the basics of measuring antenna characteristics such as impedance characteristics and radiation patterns for small antennas and large antennas.

Keyword ： Antenna, Measurement, Impedance, Radiation Pattern, Small Antenna, Large Antenna

This basic course systematically explains the fundamentals of modern microwave filters from the synthesis theory of coupling matrices to the cutting edge of filter design. The course is intended for students and engineers who wish to learn the latest design techniques while strengthening their knowledge of the fundamentals. It covers a series of design steps:
(1) lowpass / highpass prototype filters with generalized Chebyshev functions as transfer functions,
(2) synthesis theory of their coupling matrices,
(3) transformation technique of coupling topology, and
(4) filter design based on coupling coefficients and external Q factors, through illustrative examples.
The lecture will also introduce innovative design approaches with coupling matrix extraction techniques and surrogate models.

Keyword ： Microwave Filters, Generalized Chebyshev Functions, Coupling Topology, Coupling Matrix

Metamaterial and Metasurface have attracted attention for many applications in microwave and millimeter to optical frequency bands.
This workshop introduces recent trends of metamaterial and metasurface technology for electromagnetic wave sensing, mantle cloak and antenna application, thermoelectric conversion and nonradiative cooling.

Keyword ： Metamaterial, Metasurface, Electromagnetic Wave Sensing, Mantle Cloak, Thermoelectric Conversion, Nonradiative Cooling

Keyword ：

Integrated Sensing and Communications (ISAC), which enables simultaneous wireless communication and sensing, is gaining global attention as a key technology for next-generation networks due to its potential for more efficient spectrum utilization and the creation of new services. Research and development toward standardization and implementation are actively underway.
This session introduces the latest progress in ISAC, including standardization trends in 3GPP, a prototype system utilizing commercial base stations, and an experimental evaluation of device-free sensing using channel state information in WLAN systems. Technical challenges and future perspectives for realizing ISAC will also be discussed.

Keyword ： ISAC (Integrated Sensing and Communications)，Efficient Utilization of Spectrum Resources，Standardization，Device-Free Sensing，Experimental Demonstration

This workshop provides a thorough and accessible introduction to high-frequency measurement techniques, starting from the basics, for students who have completed foundational studies in electrical, electronic, and electromagnetic engineering and are beginning to learn microwave engineering.　It then introduces a wide range of cutting-edge measurement technologies for next-generation communications and high-frequency applications.
These include spectrum analysis with low phase noise using cross-correlation techniques, the use of state-of-the-art broadband coaxial interfaces enabling wideband measurements from DC to high frequencies, and broadband modulation analysis in the sub-terahertz range using VNAs, AWGs, and oscilloscopes.

Keyword ： Microwave Measurement, Vector Network Analyzer, Signal Analyzer, Spectrum Analyzer, Vector Signal Generator, Arbitrary Waveform Generator, Oscilloscope, S-Parameters, EVM, Multilevel Modulation

The application of terahertz waves toward the Beyond 5G/6G era is rapidly becoming a reality.
In this session, we will introduce the latest developments in empirical efforts aimed at the social implementation of terahertz technology. We will explore cutting-edge examples such as the use of ultra-high-speed and low-latency transmission in communication with future peripheral devices and mobile platforms. In addition, we will discuss applications enabled by terahertz technology in fields such as sensing and security. The session will examine cross-disciplinary technical challenges and their solutions through concrete case studies and implementation approaches.

Keyword ： Terahertz, Use Case, Application

The volume of data traffic in mobile communications continues to increase year by year, and further performance enhancements are required for the commercialization of sixth-generation (6G) mobile communication systems. To meet these demands, approaches for controlling the propagation environment using Reconfigurable Intelligent Surfaces (RIS) / Intelligent Reflecting Surface (IRS) and meta-surface reflectors are being investigated, with the aim of improving spectral efficiency and addressing coverage holes. Realizing these approaches requires extensive research and development, including the advancement of device and control technologies, as well as the establishment of area simulation techniques.
This workshop will present the latest research trends in propagation environment control technologies using RIS/IRS, and meta-surface reflectors in mobile communication systems.

Keyword ： B5G / 6G, Reconfigurable Intelligent Surface (RIS), Intelligent Reflecting Surface (IRS), Meta-Surface, Control of Propagation Environment

In recent years, companies and countries have been actively providing services using satellite constellations, including communication satellites and observation satellites.
Microwaves are mainly used in space for communication and radar systems, but this session focus on microwave technology for unique purpose. In particular, the topic of microwave technology is used for plasma source to spacecraft, and high-power vacuum tube technology for transmitting microwave energy in space.

Keyword ： Microwave Power Source, Spacecraft, Plasma, Ion Source, Neutralizer, Vacuum Tube, Cyclotron Wave Converter, Wireless Power Transmission