Workshop Program

Currently, wireless communication networks in Japan is part of the most important foundation of economic activity and daily life. Furthermore, advancement of wireless communication technology is expected due to the expansion of mobile devices such as tablets and smartphones, data traffic is increasing rapidly, in which the wireless system is to evolve into a M2M / IoT era dealing with big data.
With this situation in mind, the latest radio frequency administration and regulations will be discussed, including the current state of radio use, introduction of new wireless systems, 5G and so on.

→ * You can read the trial of digest (PDF)

In this talk, we will first explain about our vision related to the future services and deployment scenarios to be supported by 5G. Then, we will introduce our envisaged technical concept for 5G and its key enabling technologies. This will be followed by our views on the technology roadmap for standardization and system deployment toward 2020 and beyond. The latest status and results of our ongoing 5G experimental trials will also be presented at the end of the talk.

→ * You can read the trial of digest (PDF)

As the sequel to the special session in MWE 2013, this special session reviews a history of research and development environments on cellular systems in Japan. Major research and development milestones and episodes will be provided by active leaders in each stage from the early PDC packet data communication to the LTE systems.

Keyword ： PDC, Packet Data Communication, 3G, W-CDMA, IMT-2000, LTE

Microwave amplifiers are indispensable components for modern microwave systems. Nowadays, it is easy to purchase good performance microwave amplifier components. Meanwhile, technicians often suffered from technical problems concerning amplifier components, such like parasitic oscillations or device damages.
In this course, fundamental issues which microwave amplifier designers or microwave amplifier users should know are introduced with some examples and microwave CAD demonstrations.

Keyword ： Microwave, Amplifier, Parasitic Oscillations, Circuit Design

Oscillator is basic and important circuit in wireless transceiver, and also it in consumer wireless equipment is realized on integrated circuits as a part of frequency synthesizer, nowadays. Toward IoT era, oscillator circuit will be required lower power consumption with keeping low phase noise characteristics.
In this lecture, basis of design of high-frequency oscillators which is realized on integrated circuits and the design methodology of frequency synthesizer toward IoT era will be presented.

Keyword ： Oscillator, Frequency Synthesizer, Phase Noise, Integrated Circuits, Low Power Consumption

In this tutorial lecture, the basic theory, analysis, and design method of microwave bandpass filters are described for easy learning from the knowledge acquired through study of electric circuits. For the future step to the design of advanced microwave filters, the lecture is based on the coupling matrix used for the designs of recent coupled resonator filters.
More specifically, it contains five parts:
(1) typical transfer functions employed for approximation of filter responses,
(2) examples of coupling topologies to realize the transfer functions,
(3) circuit analysis using the coupling matrix,
(4) circuit synthesis,
and(5) physical dimension design of microwave filters based on coupling coefficients and external Q factors.
Design examples are provided to demonstrate microstrip filter designs with the effective use of EM simulators.

Keyword ： Microwave Filters, Bandpass Filters, Transfer Functions, Coupling Topology, Coupling Matrix

Accurate high frequency measurements impact to the research and development (R&D) of leading edge electronic products, i.e. devices, circuits and systems. It is required in R&D ranging from materials to final products. Major and fundamental techniques of this type of measurements used in R&D stage must be scattering parameter (S-parameter) measurement by a vector network analyzers.
This workshop will the present basic principle of the S-parameters, the measurement principle of the vector network analyzer, instructions and directions for use and the latest measurement uncertainty analysis in VNA.

Keyword ： S-Parameter, Vector Network Analyzers, Connector Care, Calibration, Uncertainty Analysis.

Electromagnetic (EM) simulators are necessary tools for efficient design of high frequency circuits. Last year, circular and rectangular patch antennas fed by an SMA connector were discussed. Tips for good modeling, especially for excitation, of realistic structure were discussed.
More complex models (planar microwave circuit and substrate antenna) will be dealt with in this year. Tips of modeling and analysis will be presented by simulator vendors exhibiting at MWE. Tips and other useful experiences will be exchanged and discussed in the session.

Keyword ： Electromagnetic Simulators, Canonical Problems, Connectors, Planar Circuits, Antennas

These extreme introductory courses WE6C and TH6C are aimed at deriving basic satisfaction of primitive and unaffected questions through the radical discussion.
The session WE6C, as active circuit part, discusses utilization methods of microwave transistors.

Keyword ： Microwave Transistors, Equivalent Circuit, Bias Circuit, Stability