The sixth scientific workshop
presented by the 24th URSI-C in Japan

Session title:
"Progress of Millimeter Wave Devices
for Wireless Communications"

1. Convener: Atsushi Honda (Fujitsu Limited)

2. Date/time: 14:00 - 17:50, September 27th, 2019

3. Venue: Presentation Room, Shin-Kawasaki Technology Square, Fujitsu Limited
( 1-1 Shinkokura, Saiwai-ku, Kawasaki city, Kanagawa pref., Japan )

4. Registration fee: Free

5. Listed attendees: 39 persons

6. Local arrangement: Atsushi Honda (Fujitsu Limited)

7. Session title: "Progress of Millimeter Wave Devices for Wireless Communications"

8. Presentations:
  • 14:00 - 14:10 Opening Remarks
    Prof. Makoto Taromaru, Chair, Commission C of URSI-JNC
    (Fukuoka University)
  • 14:10 - 15:00 "Recent trends in GaN HEMTs for improved performance"
    Prof. Masaaki Kuzuhara (Fukui University )
  • 15:00 - 15:50 "Millimeter wave GaN high power amplifier"
    Dr. Akira Inoue (Mitsubishi Electric Corp.)
  • 15:50 - 16:00 Coffee Break (10 min.)
  • 16:00 - 16:50 "Recent Trend of Millimeter-wave Band Pass Filter design"
    Dr. Shigemitsu Tomaki(TDK Corp.)
  • 16:50 - 17:40 "ADI mmWave solution for 5th generation"
    Dr. Satoshi Baba (Analog Devices Inc.)
  • 17:50Closing

Held from 18:30 to 21:00 at "Kenko Chuka-an Seiren", Shin-Kawasaki Mitsui Building in Kawasaki city. The number of attendees was 13 persons.

10.The Steering committee meeting
It took place from 13:30 - 14:00 on September 27th, 2019 at the room for the scientific workshop.

11. Concluding Remarks
The technical standardization for high frequency bands including 24 ? 30 GHz band are progressed to utilize the bands for 5th generation wireless communications. In addition, mobile communication services using these frequency bands will be started from 2020 in Japan. Device manufactures are preparing their products for the market of the high frequency bands assuming the increase of demands of devices for wireless base stations or terminals of the frequency bands. Therefore, steering committee of URSI-C planed to have a workshop for reviewing the recent development of technologies such as high power output power amplifiers or LTCC filters.
Prof. Kuzuhara (Fukui University) presented technology trends of GaN HEMT and the application examples utilizing the feature of the devices.
Dr. Inoue (Mitsubishi Electric Corp.) presented actual design examples of high power amplifiers utilizing GaN devices and amplifier structures for hybrid beam-forming base stations.
Dr. Tomaki (TDK Corp.) presented examples of band pass filters at millimeter-wave band utilizing LTCC technologies, and application examples of antenna filters.
Dr. Baba (Analog Devices) presented examples of millimeter wave base station utilizing DAC/ADC and up/down converters, and demonstrated beam-forming performance using the devices.
In the workshop, important device progress was reported in every presentation for the future utilization of high frequency bands. In addition, presenters and audiences had active discussion in the presentations. This workshop was very meaningful in the aspect of letting known the activities of URSI-C widely.

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