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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW, ICD | 2019-03-14 15:40 |
Okinawa | Wide dynamic range rectifier circuit with varactor tuning technique Ayako Suzuki, Koshi Hamano, Hayato Shimizu (Kagoshima Univ.), Hiroshi Okazaki, Kunihiro Kawai, Atsushi Fukuda, Yasunori Suzuki (NTT DOCOMO), Kenjiro Nishikawa (Kagoshima Univ.)  MW2018-166 ICD2018-110 |
[more] | MW2018-166 ICD2018-110 pp.55-59 |
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| AP, MW (Joint) |
2017-09-22 15:15 |
Saitama | Saitama University | A relation between polarization and radiation characteristics of flexible dielectirc wavguide Kunihiro Kawai, Atsushi Fukuda, Hiroshi Okazaki, Takahiro Asai, Akira Yamada (NTT DOCOMO) MW2017-78 |
This paper presents radiation characteristics of bended flexible dielectric waveguides when the millimeter wave signal p... [more] | MW2017-78 pp.59-62 |
| MW (2nd) |
2017-06-14 - 2017-06-16 |
Overseas | KMUTT, Bangkok, Thailand | 28 GHz Band Power Amplifier for Massive MIMO Transmitter Yasunori Suzuki, Kunihiro Kawai, Hiroshi Okazaki (DOCOMO) |
This paper presents experimental results of 28 GHz band power amplifier for Massive MIMO transmitter. The power amplifie... [more] | |
| AP, MW (Joint) |
2016-09-15 14:50 |
Ibaraki | AIST | Radiation characteristics of bended flexible dielectric waveguide for area formation of millimeter-wave wireless communication systems Kunihiro Kawai, Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2016-77 |
This paper presents radiation characteristics of two bended flexible dielectric waveguides in millimeter wave frequencie... [more] | MW2016-77 pp.23-26 |
| MW (2nd) |
2016-06-09 - 2016-06-11 |
Overseas | KMUTNB, Bangkok, Thailand | Broadband, Flat-gain, and High Liniarity GaN HEMT LNA for Mobile Base Station Masanobu Tsujii, Koshi Hamano, Kenjiro Nishikawa (Kagoshima Univ.), Kunihiro Kawai, Hiroshi Okazaki, Syoichi Narahashi (NTT DOCOMO, INC.) |
This paper demonstrates a broadband GaN HEMT Low Noise Amplifier (LNA) with high linearity. The proposed two-stage LNA e... [more] | |
| MW, AP (Joint) |
2015-09-17 10:30 |
Tochigi | Oyama National College of Tech. | An estimation of third order PIM using one continuous wave Kunihiro Kawai, Atsushi Fukuda, Yuta Takagi, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2015-87 |
This paper presents an estimation method for a third order passive intermodulation distortion (PIM) using one continuous... [more] | MW2015-87 pp.1-8 |
| EMCJ, WPT (Joint) |
2015-01-22 14:00 |
Okinawa | Okinawaken Ｊichikaikan | A Novel Wide Dynamic Range and Dual Band Rectifier Design for Wireless Power Transfer System Hiroto Sakaki, Fumito Kuroiwa, Masanobu Tsujii, Kenjiro Nishikawa (Kagoshima Univ.), Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) WPT2014-81 |
[more] | WPT2014-81 pp.19-24 |
| AP, MW (Joint) |
2014-09-19 13:00 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | An RF front-end circuit for inter-band carrier aggregation Kunihiro Kawai (NTT DOCOMO), Mitsumasa Nakajima (NTT), Yuta Takagi, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2014-95 |
This paper proposes an RF front-end circuit for mobile terminals supporting inter-band carrier aggregation using two fre... [more] | MW2014-95 pp.55-58 |
| MW | 2013-03-07 16:05 |
Hiroshima | Hiroshima Univ. | [Special Talk]
Briefing Report on European Microwave Week 2012 Kunihiro Kawai (NTT DOCOMO), Kazuhiko Honjo (Univ. of Electro-Comm.), Ramesh Pokharel (Kyushu Univ.), Futoshi Kuroki (KNCT), Chun-Ping Chen (Kanagawa Univ.), Hirokazu Kamoda (ATR) MW2012-181 |
The Microwave week 2012, comprising the European Microwave Conference, European Radar Conference, and European Microwave... [more] | MW2012-181 pp.121-128 |
| SR | 2012-05-24 17:15 |
Kanagawa | Keio univ. at Hiyoshi | [Panel Discussion]
Multi-band operation for mobile terminals Shoichi Narahashi, Hiroshi Okazaki, Atsushi Fukuda, Takayuki Furuta, Kunihiro Kawai, Kei Satoh, Yuta Takagi (NTT DOCOMO) SR2012-12 |
It is a key issue for radio frequency (RF) circuits of future mobile terminals to equip with multi-band operation archit... [more] | SR2012-12 pp.73-78 |
| MW | 2012-03-01 16:15 |
Saga | Saga University | [Special Talk]
An Attendee Report on European Microwave Week 2011 Yasushi Horii (Kansai Univ.), Akimichi Hirota (Mitsubishi Electric), Chun-Ping Chen (Kanagawa Univ.), Kunihiro Kawai (NTT DOCOMO), Koji Yamanaka (Mitsubishi Electric), Ramesh Pokharel (Kyushu Univ.) MW2011-177 |
This is an attendee report on the international conference of European Microwave Week (EuMW) 2011, including a statistic... [more] | MW2011-177 pp.53-60 |
| SR | 2011-07-28 15:05 |
Kanagawa | YRP | [Technology Exhibit]
A Reconfigurable Power Amplifier for Multi-band/Multi-mode Mobile Terminals Takayuki Furuta, Atsushi Fukuda, Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) SR2011-23 |
[more] | SR2011-23 pp.37-40 |
| AP, MW (Joint) |
2011-03-03 11:25 |
Ibaraki | Ibaraki Univ. | Center Frequency and Bandwidth Tunable Filter with Symmetric Attenuation Characteristics Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2010-156 |
This paper proposes a novel tunable resonator and bandpass filter that have symmetric attenuation characteristics about ... [more] | MW2010-156 pp.23-26 |
| MW | 2010-12-17 09:50 |
Ishikawa | Kanazawa Inst. of Tech. | Multi-band Power Amplifier on an LTCC Substrate Takayuki Furuta, Atsushi Fukuda, Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2010-130 |
[more] | MW2010-130 pp.47-50 |
| MW | 2010-11-25 16:50 |
Okinawa | Tiruru | [Special Talk]
Briefing Report on 2010 IEEE MTT-S International Microwave Symposium Shoichi Narahashi, Kunihiro Kawai (NTT DOCOMO), Kensuke Okubo (Okayama Prefectural Univ.), Masahiro Horibe (AIST), Takana Kaho (NTT), Kazuhisa Yamauchi (Mitsubishi), Kengo Kawasaki (Saga Univ.) MW2010-113 |
IEEE MTT-S International Microwave Symposium (IMS) was held in Anaheim, the United States, from May 23 to 28, 2010. This... [more] | MW2010-113 pp.45-54 |
| MW | 2010-03-05 14:30 |
Kyoto | Ryukoku Univ. | [Special Talk]
Briefing Report on European Microwave Conference 2009 Shoichi Narahashi, Kunihiro Kawai, Takayuki Furuta (NTT DOCOMO), Tetsuya Ueda (Kyoto Institute of Technology), Takayoshi Ito (Toshiba), Noboru Oishi (Mitsubishi Electric) MW2009-207 |
The Microwave week 2009, comprising the European Microwave Conference, European Wireless Technology Conference, European... [more] | MW2009-207 pp.159-168 |
| EMCJ, MW, IEE-MAG | 2009-10-23 11:30 |
Iwate | Iwate Univ. | Center Frequency, Bandwidth, and Transfer Function Tunable Bandpass Filter Employing Tunable Ring Resonator Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) EMCJ2009-65 MW2009-114 |
This paper presents a novel tunable bandpass filter that configures its center frequency, bandwidth, and transfer functi... [more] | EMCJ2009-65 MW2009-114 pp.123-128 |
| MW | 2009-03-06 17:30 |
Tokyo | NHK Science & Technical Research Lab. | [Special Talk]
Briefing Report on European Microwave Conference 2008 Shoichi Narahashi, Kei Satoh, Kunihiro Kawai (NTT DOCOMO), Tetsuo Anada, Chun-Ping Chen (Kanagawa Univ.), Kazuhiro Fujimori (Okayama Univ.), Hiroyuki Takahashi (NTT), Hiroyuki Kayano (Toshiba), Kazuhisa Yamauchi, Masaomi Tsuru (Mitsubishi Electric), Takuo Kashiwa (Furuno Electric) MW2008-209 |
The Microwave week 2008, comprising the European Microwave Conference, European Wireless Technology Conference, European... [more] | MW2008-209 pp.111-122 |
| RCS, AN, MoNA, SR (Joint) |
2009-03-05 10:55 |
Kanagawa | YRP | Multi-band RF circuits for mobile terminals Shoichi Narahashi, Hiroshi Okazaki, Atsushi Fukuda, Kunihiro Kawai, Takayuki Furuta (NTT DOCOMO) SR2008-106 |
Future mobile terminals will be operated in a wireless environment where various kinds of wireless systems will co-exist... [more] | SR2008-106 pp.117-120 |
| MW | 2008-06-27 10:30 |
Aichi | Toyohashi Univ. of Tech. | Ring Resonators for Bandwidth and Center Frequency Tunable Filter Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DoCoMo) MW2008-35 |
This paper presents novel and simple-structured tunable resonators for tunable bandpass filter that individually varies ... [more] | MW2008-35 pp.25-28 |
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