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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2013-03-07 15:25 |
Hiroshima | Hiroshima Univ. | [Special Talk]
10-Gb/s BPSK modulator and demodulator a 120-GHz-band wireless link Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Koichi Murata, Naoya Kukutsu (NTT)  MW2012-179 |
[more] | MW2012-179 pp.109-114 |
| MW, ED | 2013-01-17 16:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | 120-GHz-band 20-Gb/s QPSK Transmitter and Receiver modules Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Jun Takeuchi, Koichi Murata, Naoya Kukutsu (NTT) ED2012-116 MW2012-146 |
NTT laboratories are developing a 120-GHz-band wireless link using quadrature-phase-shift keying (QPSK). We have reporte... [more] | ED2012-116 MW2012-146 pp.23-28 |
| MWP, OPE, MW, EMT, EST, IEE-EMT [detail] | 2012-07-26 09:55 |
Hokkaido | Hokkaido Univ. | 120-GHz-band outddor wireless link using photonics and electronic technologies Akihiko Hirata, Hiroyuki Takahashi, Jun Takeuchi, Naoya Kukutsu, Toshihiko Kosugi, Koichi Murata (NTT) MW2012-29 OPE2012-22 EST2012-11 MWP2012-10 |
NTT has been developing outdoor 120-GHz-band wireless link that can transmit 10-Gbit/s data in order to meet the require... [more] | MW2012-29 OPE2012-22 EST2012-11 MWP2012-10 pp.11-15 |
| ED, MW | 2012-01-12 11:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg | A 60-GS/s Digital-to-Analog Converter using 0.5-um InP HBTs for Optical Communication Systems Munehiko Nagatani, Hideyuki Nosaka, Kimikazu Sano, Koichi Murata, Kenji Kurishima, Minoru Ida (NTT) ED2011-131 MW2011-154 |
High-order multi-level modulation formats, such as 16-QAM and 64-QAM, are promising techniques for constructing beyond-1... [more] | ED2011-131 MW2011-154 pp.69-74 |
| ED, MW | 2012-01-12 11:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Components in 0.5-um-emitter-width InP-HBT Technology for High-Speed and Low-Power Applications Yves Bouvier, Munehiko Nagatani, Kimikazu Sano, Koichi Murata, Kenji Kurishima, Minoru Ida (NTT) ED2011-132 MW2011-155 |
Two basic components for high-speed and low-power applications, a static frequency divider and decision circuit, have be... [more] | ED2011-132 MW2011-155 pp.75-79 |
| ED | 2011-12-14 15:50 |
Miyagi | Tohoku University | A 140-GHz Receiver Array IC and Sub-Assembly for Passive Imaging System
-- Development of Compact Passive Imaging System -- Toshihiko Kosugi, Hiroki Sugiyama, Hideaki Matsuzaki, Koichi Murata (NTT Photonics Lab.) ED2011-105 |
[more] | ED2011-105 pp.31-34 |
| MW | 2011-11-25 14:45 |
Okinawa | Hermetic Sealing Technique for F-band Waveguides and Packages Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Jun Takeuchi, Koichi Murata, Naoya Kukutsu (NTT) MW2011-123 |
Outdoor systems operating at frequencies of over 100 GHz need secure seals for rectangular waveguides to protect against... [more] | MW2011-123 pp.59-64 |
|
| MW, ED | 2011-01-13 16:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A High-Speed Digital-to-Analog Converter with InP HBT Technology for Multi-Level Optical Transmission Systems Munehiko Nagatani, Hideyuki Nosaka, Shogo Yamanaka, Kimikazu Sano, Koichi Murata (NTT) ED2010-180 MW2010-140 |
High-order multi-level modulation formats, such as 16-QAM and 64-QAM, are promising techniques for constructing beyond-1... [more] | ED2010-180 MW2010-140 pp.29-33 |
| MW, ED | 2011-01-13 16:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | 32-GHz Phase Shifter IC with 810° control range Hideyuki Nosaka, Munehiko Nagatani, Kimikazu Sano, Koichi Murata (NTT) ED2010-181 MW2010-141 |
A phase-shifter IC with 810° control range was fabricated using InP HBTs. The phase shifter includes a wideband vector m... [more] | ED2010-181 MW2010-141 pp.35-40 |
| ED, SDM | 2010-06-30 16:30 |
Tokyo | Tokyo Inst. of Tech. Ookayama Campus | 50-Gbit/s MUX/DEMUX IC modules using feed-trough type metal-wall package technique Satoshi Tsunashima, Michihiro Hirata, Koichi Murata (NTT Corp.) ED2010-72 SDM2010-73 |
A broadband metal-wall (MW) package that uses a feed-through RF interface has been developed for 50-Gbit/s multiplexer (... [more] | ED2010-72 SDM2010-73 pp.91-96 |
| WBS, SAT (Joint) |
2010-06-11 13:00 |
Okinawa | Okinawa-ken-Seinen-Kaikan | On Feedback-Controlled DS-CDMA Multihop Network Koichi Murata, Ken Terao, Yuya Hayashi, Masanori Hamamura (Kochi Univ. of Tech.) WBS2010-10 |
This paper describes feedback-controlled DS-CDMA (FC/DS-CDMA) multihop network. We show the transmitter and receiver use... [more] | WBS2010-10 pp.53-56 |
| ED, MW | 2010-01-15 09:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg | A 32-GS/s 6-bit Double-Sampling DAC in InP HBT Technology Munehiko Nagatani, Hideyuki Nosaka, Shogo Yamanaka, Kimikazu Sano, Koichi Murata (NTT Corp.) ED2009-191 MW2009-174 |
We have developed an ultrahigh-speed 6-bit DAC with InP HBT Technology. To achieve ultrahigh-speed operation, we devised... [more] | ED2009-191 MW2009-174 pp.93-97 |
| ED, MW | 2010-01-15 10:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Pseudo Sinusoidal Generator with PVT Compensation Circuit using InP HBTs
-- For Linear Control of Vector-Sum Phase Shifter -- Hideyuki Nosaka, Munehiko Nagatani, Shogo Yamanaka, Kimikazu Sano, Koichi Murata (NTT Corp.) ED2009-192 MW2009-175 |
A pseudo-sinusoidal generator is needed to realize a voltage-controlled vector-sum phase shifter that has linear phase c... [more] | ED2009-192 MW2009-175 pp.99-103 |
| ED | 2009-11-29 15:55 |
Osaka | Osaka Science & Technology Center | High Breakdown Voltage InP HEMT 125GHz, 140mW MW Power Amplifier
-- Development of 120GHz Broadband Wireless System -- Toshihiko Kosugi, Hiroki Sugiyama (NTT PH Lab.), Akihiko Hirata, Naoya Kukutsu, Hiroyuki Takahashi (NTT MI Lab.), Koichi Murata (NTT PH Lab.) ED2009-164 |
[more] | ED2009-164 pp.25-30 |
| ED | 2009-11-29 16:20 |
Osaka | Osaka Science & Technology Center | 120-GHz-band BPSK Modulator and Demodulator for 10 Gbit/s Data Transmission Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Koichi Murata, Naoya Kukutsu (NTT Corp.) ED2009-165 |
This paper presents a 120-GHz-band binary phase shift keying (BPSK) modulator and demodulator fabricated on microwave mo... [more] | ED2009-165 pp.31-35 |
| MW (Workshop) |
2009-08-20 - 2009-08-21 |
Overseas | KMUTNB, Bangkok, Thailand | [Invited Talk]
InP-based IC technologies for over 10 Gbps communications systems Shoji Yamahata, Koichi Murata (NTT) |
The development of high-speed ICs with InP-based high-frequency transistors (HBTs and HEMTs) is driven by applicatitions... [more] | |
| SDM, ED | 2009-06-25 12:30 |
Overseas | Haeundae Grand Hotel, Busan, Korea | Study of a PMD tolerance extension by InP HBT analog EDC IC without adaptive control in 43G DQPSK transmission Toshihiro Itoh, Kimikazu Sano, Hiroyuki Fukuyama, Koichi Murata (NTT) ED2009-80 SDM2009-75 |
We experimentally studied the polarization mode dispersion (PMD) tolerance of an feed-forward equalizer (FFE) electronic... [more] | ED2009-80 SDM2009-75 pp.133-136 |
| MW, ED | 2009-01-15 14:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Two-channel InP HBT Differential Automatic-gain-control Transimpedance Amplifier IC for 43-Gbit/s DQPSK Photoreceiver Hiroyuki Fukuyama, Toshihiro Itoh, Tomofumi Furuta, Kenji Kurishima, Masami Tokumitsu, Koichi Murata (NTT) ED2008-213 MW2008-178 |
We have developed a two-channel automatic-gain-control transimpedance amplifier IC by using InP heterojunction bipolar t... [more] | ED2008-213 MW2008-178 pp.89-94 |
| SDM, ED | 2008-07-11 09:50 |
Hokkaido | Kaderu２・７ | [Invited Talk]
Millimeter-wave MMIC Technologies for F-band Application Toshihiko Kosugi, Akihiko Hirata, Koichi Murata, Naoya Kukutsu, Yuichi Kado, Takatomo Enoki (NTT) ED2008-77 SDM2008-96 |
We describe ICs and their waveguide modules for F-band wireless communications and imaging systems. InP-HEMTs and a cop... [more] | ED2008-77 SDM2008-96 pp.199-204 |
| ED | 2006-12-08 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Talk]
Millimeter-wave MMIC Technology for 120-GHz Wireless Application Toshihiko Kosugi, Masami Tokumitsu, Koichi Murata, Takatomo Enoki (NTT Photonics Lab.), Tadao Nagatsuma (NTT Micro System Integration Lab.) |
[more] | |
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