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Workshop Program

Nov. 30 (Thu)

F [ Tutorial / Getting Started / Incubation ]

TH1A  Tutorial

Nov. 30 (Thu)  09:30-11:30   Room 1+2 (Annex Hall F201+F202)
Basic Circuit Theory for High-Efficiency WPT System as Viewed from the Universities of Technology
Organizer / Chair :  Asako Suzuki (Fujiwaves Co.,Ltd.)
Those who got started Wireless Power Transfer (WPT), shall we move on to the next step? Let us learn tips to enhance circuits and systems performance in WPT!
There is a growing demand for high-power and high-efficiency system development in WPT. In this fundamental course, two young faculty members specializing in technology and science will explain their technical approaches to WPT systems, power electronics design, and how to implement them into practice that achieve high efficiency in kHz and MHz frequency bands.

Keyword : Wireless Power Transfer, Magnetic Field Coupling, Inductive Power Transfer, Capacitive Power Transfer, Electric Field Coupling, Electric Vehicle, Biomedical

* When you click on the title, you can read the trial of digest (PDF)
1 Challenge in Design of Efficient Wireless Power Transfer System Operating in kHz Band
Keisuke Kusaka (Nagaoka Univ. of Tech.)
2 Radio-Frequency Power Electronics Paving the Way to the Future — Challenges for Wireless Power Transfer —
Minoru Mizutani (Toyohashi Univ. of Tech.)
E [ Future and/or Fundamental Technologies ]

TH1B  Special Session

Nov. 30 (Thu)  14:00-16:00   Room 1+2 (Annex Hall F201+F202)
How is AI Utilized in Communication Circuit Design? — From the Fundamentals of AI to the Latest Application Examples —
Organizer / Chair :  Chun-Ping Chen (Kanagawa Univ.)
In the current era, often referred to as the Third AI Boom, AI (Artificial Intelligence) is widely utilized across various fields. Among them, AI's role in the design of next-generation communication circuits is particularly remarkable. It is extensively employed in tasks such as selecting and modeling circuit structure patterns, conducting circuit simulation and evaluation, optimizing circuit parameters, and other design processes. The automation of circuit design using AI, in particular, has garnered significant attention as it saves time and effort for circuit designers.
In this special session, we will first introduce the fundamentals of AI technology and then showcase the latest applications and future trends, such as AI-driven topological optimization for high-performance optical and millimeter-wave devices, automatic design of operational amplifiers, and modeling of millimeter-wave GaN HEMTs for communication circuits.

Keyword : AI, Artificial Intelligence, Machine Learning, Deep Learning, Circuit Design, Automatic Design, Optimization, Millimeter-Wave

* When you click on the title, you can read the trial of digest (PDF)
1 The Evolution of Fundamental Technologies in AI: Tracing the Roots from AI to Machine Learning and Then Deep Learning
Hiroyasu Usami (Chubu Univ.)
2 Function Expansion Based Topology Optimization of Optical and Millimeter-Wave Circuit Devices
Yasuhide Tsuji, Akito Iguchi (Muroran Inst. of Tech.), Keita Morimoto (Univ. of Hyogo), Tatsuya Kashiwa (Kitami Inst. of Tech.)
3 Automatic Design of Operational Amplifier using Machine Learning
Nobukazu Takai (Kyoto Inst. of Tech.)
4 Deep Learning-Based Modeling of Millimeter Wave GaN HEMTs
Takeshi Kawasaki (Sumitomo Electric Industries, Ltd.)
A [ 5G / 6G ]  B [ Millimeter-Wave and Terahertz-Wave ]

TH3A  Workshop

Nov. 30 (Thu)  09:30-11:30   Room 3 (Annex Hall F203)
Recent Trends of Metasurface Technologies for 6G
Organizer / Chair :  Atsushi Sanada (Osaka Univ.)
Sub-terahertz frequency bands are to be used for future 6G. The biggest challenge of using highly directive electromagnetic waves in this frequency band is to extend wireless coverage even in a non-line-of-sight environment. To address this issue, metasurface technology is attracting attention due to its extremely high flexibility in dynamic reflection angle control depending on the demands of the propagation environment and network toward arbitrary angles which do not necessarily obey the law of reflection with extremely high reflection efficiency exceeding that of conventional reflectarrays. In this workshop, we will present the latest trends in metasurface technology for 6G including material measurement and characterization techniques in the sub-terahertz band and discuss challenges and future prospects for practical applications.

Keyword : Metasurfaces, Reconfigurable Intelligent Surfaces, 6G, Sub-Terahertz Waves

* When you click on the title, you can read the trial of digest (PDF)
1 Introduction: Current Status and Future Prospects of Metasurface Technologies for 6G
Atsushi Sanada (Osaka Univ.)
2 R&D for Using Intelligent Reflecting Surface in 6G
Yuichi Kawamoto (Tohoku Univ.)
3 Material and RCS Measurement Techniques at Sub-Terahertz Frequency Region for Beyond-5G/6G Applications
Yuuto Katou, Michitaka Ameya (AIST)
4 Perfect Anomalously Reflective Stretchable RIS at Sub-Terahertz Band
Atsushi Sanada, Kento Seki (Osaka Univ.)
A [ 5G / 6G ]  B [ Millimeter-Wave and Terahertz-Wave ]  E [ Future and/or Fundamental Technologies ]

TH3B  Workshop

Nov. 30 (Thu)  14:00-16:00   Room 3 (Annex Hall F203)
Future Directions of Network Analyzer Technology
Organizers :  Ryoko Kishikawa (AIST)
Chair :  Moto Kinoshita (AIST)
Since its inception in the 1950s, network analyzers have undergone significant advancements. Through continuous improvements in system design and calibration techniques, network analyzers have evolved to incorporate a wide range of functions. Their significant impact on modern society can be attributed to their ability to enable precise measurements and analysis of signals in fields such as telecommunications, electronics, and scientific research.
In this workshop, three manufacturers will present the current state and future developments of network analyzer technology.

Keyword : Network analyzer, Microwave

* When you click on the title, you can read the trial of digest (PDF)
1 mmW Measurement Using the Latest Network Analyzer Looking Toward 5G and 6G
Atsushi Ishihara (Rohde & Schwarz Japan K.K.)
2 Challenges and Solutions for 5G FR2 Antenna Measurement and S-Para Measurement above 110GHz
— Lagest Techniques on Far-End and Broadband Measurements —
Kiyoshi Kawauchi (Anritsu Corp.)
3 Introducing the Latest Test Solutions for 5G Components Using Vector Network Analyzers
Takuya Hirato (Keysight Technologies International Japan G.K.)
A [ 5G / 6G ]  B [ Millimeter-Wave and Terahertz-Wave ]  C [ IoT / Society 5.0 ]

TH4A  Workshop

Nov. 30 (Thu)  09:30-11:30   Room 4 (Annex Hall F204)
Status and Views of Millimeter Wave Deployment for 5G and Local 5G
Organizer / Chair :  Takehiro Nakamura (NTT DOCOMO, Inc.)
In Japan, along with sub6, millimeter waves in the 28 GHz band were allocated with a wide bandwidth of 400 MHz per operator for the commercialization of 5G. In addition, the 28GHz band has been allocated for local 5G along with the 4.7GHz band. Even in the international standardization of 3GPP, standard specifications supporting millimeter waves were included from the initial specifications of 5G. However, the commercial deployment of 5G is currently limited to the 5G refarming of the low- and mid-bands, and the sub6. The introduction of millimeter waves has not progressed sufficiently in terms of area and terminal penetration. In terms of the global situation, the number of countries where commercial deployment of millimeter waves has started is extremely limited.
On the other hand, thanks to its wide frequency bandwidth, millimeter waves are expected to play a major role in the creation of new service fields by realizing ultra-high-speed, large-capacity communication, low-delay communication, etc., which are one of the characteristics of 5G. Traffic volume continues to increase, and expectations are high for future traffic accommodation by millimeter waves.
Considering these expectations, in January 2023, the millimeter wave promotion ad hoc group was established in the 5G Mobile Promotion Forum (5GMF) with the aim of promoting the spread of millimeter waves. The Ad hoc developed and published their white paper.
In this workshop, the basic content of this white paper, i.e. the necessity, use cases, domestic and international situations, performance, affinity with local 5G, and views of millimeter wave will be explained and discussed.

Keyword : Millimeter Wave, 5G, Local 5G

* When you click on the title, you can read the trial of digest (PDF)
1 Needs, Use Cases and Views of Millimeter Wave
Takehiro Nakamura (NTT DOCOMO, Inc.)
2 Japan / Global Status on mmW and Transforming Mobile Experience by mmW Performance
Junko Sunaga (Qualcomm Japan)
3 Status of Local 5G and Affinity Between Millimeter Wave and Local 5G
Mitsunori Nakamura (Regional BWA Promotion Association)
B [ Millimeter-Wave and Terahertz-Wave ]

TH4B  Workshop

Nov. 30 (Thu)  14:00-16:00   Room 4 (Annex Hall F204)
Next Generation Array Antenna Technologies
Organizer / Chair :  Ryo Yamaguchi (SoftBank Corp.)
Millimeter wave and terahertz wave applications have been studied in various fields as well as in device development. Since propagation loss is large in these frequency bands, array antenna technology has attracted much attention as one of the approaches to overcome the loss.
In this session, R&D efforts aimed at applying array antenna technology to next-generation mobile communications and sensing will be presented.

Keyword : Next Generation, Millimeter Wave, Terahertz Wave, Array Antenna

* When you click on the title, you can read the trial of digest (PDF)
1 mmWave Band Beamforming Antenna System for Mobile Communication
Keisuke Sato (DKK Co., Ltd.)
2 Antenna Propagation Evaluation Method Using Reflector for Efficient MIMO Transmission in the 30GHz to 300GHz Band
Kazuma Tomimoto,Toshiki Hozen, Tomonori Ikeda, Ryo Yamaguchi, Masayuki Miyashita, Ayumu Yabuki (SoftBank Corp.)
3 THz Active Antenna Array with Resonant-Tunneling Diode (RTD) and its Application
Yasushi Koyama, Tatsuya Murao, Yuki Kitazawa, Koji Yukimasa, Tatsuro Uchida, Takeshi Yoshioka, Kokichi Fujimoto, Takahiro Sato, Jun Iba, Katsuhito Sakurai, Takeshi Ichikawa (Canon Inc.)
E [ Future and/or Fundamental Technologies ]

TH5A  Workshop

Nov. 30 (Thu)  09:30-11:30   Room 5 (Annex Hall F205)
AI Technologies for EMC Design and Countermeasures
Organizer / Chair :  Tadatoshi Sekine (Shizuoka Univ.)
Since the electromagnetic environments around recent electronic devices have become complex and diverse, it has been increasingly difficult to intuitively design and implement countermeasures having regard to electromagnetic compatibility (EMC). With the rapid development of artificial intelligence (AI) technologies such as machine learning and deep learning in various fields, some efforts to solve EMC problems with the help of these technologies have been attracting attention.
In this workshop, we will introduce how to apply the AI technology to various problems related to the EMC design and countermeasures, including board design and noise suppression, and its application examples.

Keyword : Electromagnetic Compatibility (EMC), Noise Countermeasure, Artificial Intelligence (AI), Machine Learning, Deep Learning

* When you click on the title, you can read the trial of digest (PDF)
1 Machine Learning for Product EMC Design
Akihisa Sakurai (System Design Laboratory), Hiroaki Ikeda (Japan Aviation Electronics Industry, Ltd.)
2 Applying Machine Learning to EMC Problems — Far Field Prediction and Design Optimization Using Regression Models —
Hiroaki Ikeda (Japan Aviation Electronics Industry, Ltd.)
3 Estimation of Material Characteristics of Next Generation Electromagnetic Noise Suppression Sheet Using Genetic Algorithm
Takahiro Mikami (Akita Univ.), Sho Muroga (Tohoku Univ.), Motoshi Tanaka (Akita Univ.)
D [ Wireless Power Transmission and Microwave Heating ]

TH5B  Workshop

Nov. 30 (Thu)  14:00-16:00   Room 5 (Annex Hall F205)
The Latest Trends in Wireless Power Transfer Systems Using Radiowave and the Roadmap to Business Implementation
Organizer / Chair :  Satoshi Yoshida (Ryukoku Univ.)
In recent years, the incorporation of wireless communication functions in electronic devices has opened the door to new use cases and the launch of services that would have been unimaginable a decade ago. Although research and developments for low power consumption have been conducted in the hardware of portable terminals such as smartphones, in actuality, the capacity of the batteries installed in these devices is increasing. In the spring of 2022, the Japanese law had been established and wireless power supply products will be on the market in Japan. In this session, we will discuss the business model of wireless power transfer and its application in Japan.
In this session, we will explain the frontiers of research and development of wireless power transfer for spatial transmission with a view to business implementation.

Keyword : Wireless Powering, Wireless Power Transmission, IoT Devices, Microwave Systems

* When you click on the title, you can read the trial of digest (PDF)
1 Trends in Regulations and Standards for Beam WPT
Masahiro Hanazawa (UL Japan, Inc.)
2 The Future of AirPlugTM — Scalability of Long Range Wireless Power Transfer —
Naoto Kodate (Aeterlink, Corp.)
3 Far-Field Wireless Power Transmission for IoT Devices
Yuki Tanaka (Panasonic System Networks R&D Lab. Co., Ltd.)、Hiroyuki Tani (Panasonic Holdings Corp.)
A [ 5G / 6G ]  E [ Future and/or Fundamental Technologies ]

TH6A  Workshop

Nov. 30 (Thu)  09:30-11:30   Room 6 (Annex Hall F206)
Trends for High-Efficiency Power Amplifiers
Organizers :  Koshi Hamano (Sumitomo Electric Device Innovations, Inc.)
Chair :   Takashi Sumiyoshi (Sumitomo Electric Device Innovations, Inc.)
In order to achieve the target performance of the next-generation mobile communication systems (Beyond 5G/6G), research and development of the high-efficiency power amplifiers has been active. The power amplifiers account for a large proportion of the power consumption of the base stations, and the efforts are being made to achieve the high-efficiency and the low-distortion from various perspectives, including the circuits and the devices.
This session focuses on the circuit topology and introduces the technologies for the high-efficiency and low-distortion applicable to power amplifiers.

Keyword : Beyond 5G/6G, Sub-6 GHz, Base Station, Power Amplifier, GaN-HEMT, GaAs-HBTs, High-Efficiency, Load Modulation, Outphasing, Load Modulated Balanced Amplifier, Doherty, Microwave, Millimeter Wave

* When you click on the title, you can read the trial of digest (PDF)
1 Development of Outphasing Amplifier for Quasi-Millimeter Wave Operation
Ryo Ishikawa (The Univ. of Electro-Communications)
2 Research Cases and Future Prospects of Load Modulated Balanced Amplifier (LMBA)
Kiichiro Takenaka (Murata Manufacturing Co., Ltd.)
3 Input Power-Divider and Driver-Stage Amplifier Circuit Technology for High Efficiency and Low Distortion Doherty Amplifiers
Shuichi Sakata (Mitsubishi Electric Corp.)
F [ Tutorial / Getting Started / Incubation ]

TH6B  Tutorial

Nov. 30 (Thu)  14:00-16:00   Room 6 (Annex Hall F206)
Fundamentals of Broadband Amplifiers towards Beyond 5G/6G
Organizers :  Shintaro Shinjo (Mitsubishi Electric Corp.)
Chair :  Koji Yamanaka (Mitsubishi Electric Corp.)
The modulated signals with higher bandwidth and more complex scheme are used to realize ultra-high speed and high capacity communications in Beyond 5G/6G. In particular, transmit amplifiers are required to achieve both high efficiency and wideband operation.
In this course, the fundamentals of high efficiency and wideband techniques for amplifiers towards Beyond 5G/6G will be explained, and the latest examples with them will be presented.

Keyword : Beyond 5G, 6G, Harmonic-Tuning Techniques, High-Efficiency Amplifier, Broadband Amplifier, Doherty Amplifier

* When you click on the title, you can read the trial of digest (PDF)
1 Continuous Mode Harmonic-Tuning Techniques for High-Efficiency Wideband Power Amplifiers
Shinichi Tanaka (Shibaura Inst. of Tech.)
2 Design Basics and Examples of Wideband Power Amplifiers for Wireless Communication
Yuji Komatsuzaki (Mitsubishi Electric Corp.)
F [ Tutorial / Getting Started / Incubation ]

TH7A  Getting Started

Nov. 30 (Thu)  11:00-12:30   Room 7 (Exhibition Hall Workshop Space)
Introductory Couse on S-Parameters for Designers
Organizers :  MWE 2023 Exhibition Committee
Chair :  Kyoya Takano (Tokyo Univ. of Science)
S-parameters are widely used in the design and measurement of microwave circuits. Recently, circuit simulators and electromagnetic simulators have become increasingly convenient. As a result, we have less opportunity to measure or calculate S-parameters. It prevents us from understanding microwave circuits.
In this session, basic knowledge of S-parameters is explained for beginners. In addition, examples of S-parameter calculation are introduced for the purpose of microwave circuit design.

Keyword : S-Parameter, dB, Insertion Loss, Return Loss, VSWR, Passive Circuit

→ * Highlights of this course (PDF)
1 Basic Knowledge and Practice of S-Parameters
Yuta Sugiyama (Mitsubishi Electric Corp.)
2 Comprehensive Discussion
F [ Tutorial / Getting Started / Incubation ]

TH7B  Getting Started

Nov. 30 (Thu)  14:00-15:30   Room 7 (Exhibition Hall Workshop Space)
[EST Cooperative Session]
Easy Guide to Antenna Simulation and Experiments using Personal Vector Network Analyzer
Organizers :  MWE 2023 Exhibition Committee
Chair :  Masayuki Kimishima (Advantest Laboratories Ltd.)
High-frequency circuits such as antennas and RF circuits (large circuits where the size of wires and objects are approximately 1/100 or more compared to the wavelength) cannot be designed with only knowledge of electrical and electronic circuits. The reason for this is that it is necessary to consider the behavior of electromagnetic waves, which cannot be described by voltage and current alone.
This super introductory course will explain the flow of design through analysis using an electromagnetic field simulator and measurement using a network analyzer. High-frequency measuring instruments used to be expensive, but in recent years inexpensive measuring instruments that cost around 10,000 JPY have appeared. Taking microstrip lines and patch antennas as examples, this course will provide you with a first-hand experience of the design and prototyping process through simulations, actual measurements using inexpensive measuring instruments, and comparative discussion of the results.

Keyword : Antenna Design, Electromagnetic Simulation, FDTD Method, S-parameter, Vector Network Analyzer (VNA)

→ * Highlights of this course (PDF)
1 Easy Guide to Antenna Simulation and Experiments using Personal Vector Network Analyzer
Keiji Sakaki (Kozo Keikaku Engineering Inc.), Takuichi Hirano (Tokyo City Univ.)
2 Comprehensive Discussion

All contents copyright @ MWE 2023 Steering Committee. All rights reserved.