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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ED | 2022-12-09 14:35 |
Aichi | 12/8 Nagoya University, 12/9 WINC AICHI | Optimal Design of Attenuator for Helix-TWTs by Using 3D Numerical Simulations Kenji Nakajima (GSST/NECSpace/NETS), Kunio Tsutaki (RIE Shizuoka Univ.), Yoichiro Neo, Hidenori Mimura (RIE Shizuoka Univ./GSST Shizuoka Univ.)  ED2022-66 |
With the recent advancement of communication capacity and speed, traveling wave tubes (TWT), that are used as final stag... [more] | ED2022-66 pp.51-54 |
| AP, SANE, SAT (Joint) |
2021-07-30 10:40 |
Online | Online | Development of stepless attenuator to emulate Mobile Satellite Communications System Byeongpyo Jeong, Tomoshige Kan, Hajime Susukita, Takashi Takahashi (NICT) SAT2021-26 |
NICT has developed and is operating a mobile vehicle earth station for Ka-band which can be installed by simple operatio... [more] | SAT2021-26 pp.36-39 |
| MW | 2020-03-05 11:20 |
Kochi | Kochi City Culture-Plaza CUL=PORT (Cancelled but technical report was issued) |
A Wideband π-shaped Switched Attenuator using Parallel CMOS Compensation Switches Kengo Kawasaki, Tsuru Masaomi, Mitsuhiro Shimozawa (Mitsubishi Electric) MW2019-142 |
This paper presents a novel wideband -shaped switched variable attenuator. The proposed wideband variable -shaped atte... [more] | MW2019-142 pp.11-15 |
| OPE, OCS, OFT (Joint) [detail] |
2018-02-16 09:25 |
Okinawa | Okinawa Prefectural Museum | Joint Switching Characteristics of LCoS-Based WSS Kosuke Yamashita, Takuya Kataoka, Masahiko Jinno (Kagawa Univ.) OCS2017-85 OPE2017-178 |
n order to reduce the optical node cost in the forthcoming Space Division Multiplexing (SDM) era, joint-switching techni... [more] | OCS2017-85 OPE2017-178 pp.29-34(OCS), pp.47-52(OPE) |
| MW | 2017-12-19 15:50 |
Tokyo | Proposal of Reflective Circuit and Variable-Attenuation-Phase Shifter with Independently Controllable Amplitude and Phase Shosei Tomida, Satoshi Kitabayashi, Yuichi Miyaji, Masaya Tamura (Toyohashi Univ. of Tech.) MW2017-151 |
Variable attenuators and phase shifters are used in various wireless systems. However, there are few reports for miniatu... [more] | MW2017-151 pp.53-58 |
|
| OPE | 2017-12-07 13:15 |
Okinawa | [Poster Presentation]
Temporal Response Difference between Thermo-Optic Switch and Variable Optical Attenuator Wataru Yamauchi, Toshio Watanabe, Tsutomu Nagayama, Seiji Fukushima (Kagoshima Univ.) OPE2017-104 |
A Mach-Zehnder interferometer based on optical waveguides with a thermo-optic phase shifter operates as both optical swi... [more] | OPE2017-104 pp.79-82 |
|
| OFT | 2017-10-13 09:55 |
Kochi | Kochi Prefectural Culture Hall | Variable Photonic Crystal Fiber Optical Attenuator Using Bending Loss Hirohisa Yokota, Tomohiko Sano, Yoh Imai (Ibaraki Univ.) OFT2017-43 |
Recently, an importance of optical attenuator has increased in fiber optic communication systems because an optical powe... [more] | OFT2017-43 pp.23-26 |
| EMT, MW, OPE, MWP, EST, IEE-EMT [detail] | 2015-07-16 11:00 |
Hokkaido | Kushiro City Lifelong Learning Center | The design of reactance attenuator with a wider broadband Toshihiko Shibazaki (Tokyo Metro. College of Industrial Tech.), Teruhiro Kinoshita (Tokyo Polytechnic Univ.) EMT2015-23 MW2015-61 OPE2015-35 EST2015-27 MWP2015-26 |
The inductive window or capacitive window in a rectangular waveguide is used for the filters, matching circuits, and the... [more] | EMT2015-23 MW2015-61 OPE2015-35 EST2015-27 MWP2015-26 pp.83-88 |
| RCC, ASN, NS, RCS, SR (Joint) |
2014-07-31 14:40 |
Kyoto | Kyoto Terrsa | [Poster Presentation]
Experiment of Inversely Proportional Transmission Power and Carrier Sense Threshold Setting in WLAN Daichi Okuhara, Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Riichi Kudo, Koichi Ishihara (NTT) RCC2014-45 NS2014-65 RCS2014-117 SR2014-46 ASN2014-64 |
The number of WLAN devices has risen sharply in recent times and has led to high-density wireless networks with frequen... [more] | RCC2014-45 NS2014-65 RCS2014-117 SR2014-46 ASN2014-64 pp.119-123(RCC), pp.97-101(NS), pp.151-155(RCS), pp.139-143(SR), pp.127-131(ASN) |
| AP (2nd) |
2014-06-27 10:00 |
Ibaraki | AIST | Fundamental Considerations on S Parameter Estimation for Two-Port Reciprocal Network Using Sliding Short Sho Uesugi, Nozomu Ishii (Niigata Univ.) |
A method to estimate gain by irradiating antenna under test (AUT) with electromagnetic wave from transmitting antenna an... [more] | |
| RCS | 2014-06-17 10:53 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Inversely Proportional Setting of Transmission Power and Carrier Sense Threshold for WLAN Throughput Improvement Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Riichi Kudo, Koichi Ishihara (NTT) RCS2014-45 |
Inserting attenuators between transceivers and antennas is proposed to improve spacial channel reuse in carrier sense mu... [more] | RCS2014-45 pp.77-80 |
| MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] | 2014-01-23 10:55 |
Kyoto | Doshisha University | Low WDL power monitor integrated MEMS optical variable attenuator development Mohammed Saad Khan, Tatsuya Makino, Masahiro Kawasugi, Yasuki Sakurai (santec) PN2013-53 OPE2013-167 LQE2013-153 EST2013-102 MWP2013-73 |
Optical variable attenuators and optical power monitors are most basic devices in DWDM optical communication， contributi... [more] | PN2013-53 OPE2013-167 LQE2013-153 EST2013-102 MWP2013-73 pp.101-106 |
| OFT | 2013-01-25 09:00 |
Tokushima | Fabrication of polarization-maintaining photonic crystal fiber optical attenuator using air hole diameter control Hirohisa Yokota, Naoya Inoue, Yuto Kobayashi, Yoh Imai (Ibaraki Univ.) OFT2012-62 |
Photonic crystal fiber (PCF) optical attenuators that are fabricated by air hole diameter control have advantages such a... [more] | OFT2012-62 pp.51-54 |
|
| LQE, CPM, EMD, OPE, R | 2012-08-24 14:00 |
Miyagi | Tohoku Univ. | Silicon-germanium/silicon nano-wire waveguide for energy-saving optical switch and variable optical attenuator Shigeaki Sekiguchi, Lei Zhu, Teruo Kurahashi, Kenichi Kawaguchi, Ken Morito (Fujitsu Labs.) R2012-45 EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 |
For active optical waveguide devices on silicon (Si)-platform, highly efficient carrier accumulation in the waveguide ... [more] |
R2012-45 EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 pp.115-120 |
| OPE, EMT, LQE, PN, IEE-EMT [detail] | 2011-01-27 15:45 |
Osaka | Osaka Univ. | Fast Optical Power Stabilization using a Germanium Photodiode and a Silicon Variable Optical Attenuator Integrated on a Silicon Photonic Platform Koji Yamada, Tai Tsuchizawa, Toshifumi Watanabe, Hiroyuki Shinojima, Hidetaka Nishi, Rai Kou, Sungbong Park (NTT), Yasuhiko Ishikawa, Kazumi Wada (Univ. of Tokyo), Seiichi Itabashi (NTT) PN2010-36 OPE2010-149 LQE2010-134 |
Fast optical power stabilization is demonstrated using a germanium photodiode and a silicon variable optical attenuator ... [more] | PN2010-36 OPE2010-149 LQE2010-134 pp.53-56 |
| OFT | 2010-10-25 15:05 |
Saitama | Nippon Institute of Technology | Fabrication of Photonic Crystal Fiber Attenuator with Air Hole Diameter Control Using CO2 Laser Irradiation Hirohisa Yokota, Kousuke Ushiroda, Naoya Inoue, Yoh Imai, Yutaka Sasaki (Ibaraki Univ.) OFT2010-34 |
Photonic crystal fiber (PCF) attenuators with air hole diameter control were fabricated by PCF fusion using CO_2 laser i... [more] | OFT2010-34 pp.29-32 |
| OPE, EMD, CPM, LQE | 2009-08-21 13:25 |
Miyagi | Improvement of Optical Devices Reliability by Assembling with Newly Developed Highly Moisture Durable Optical Adhesives Seiko Mitachi, Ayumi Harada (Tokyo Unv. of Tech.), Atsushi Kikkawa (Yokohama Rubber Co., Ltd.) EMD2009-50 CPM2009-74 OPE2009-98 LQE2009-57 |
This paper reports time dependent change of insertion loss and return loss of connection between optical connectors them... [more] | EMD2009-50 CPM2009-74 OPE2009-98 LQE2009-57 pp.123-128 |
|
| OCS, OFT (Joint) |
2008-08-29 09:50 |
Hokkaido | Variable optical attenuator using long period fiber grating with high coupling coefficients Rikiya Yamamoto, Hisami Nishi (Osaka Inst.) OFT2008-26 |
Long period fiber grating (LPFG) is worked as a variable optical attenuator (VOA) that the transmission loss at the reso... [more] | OFT2008-26 pp.49-54 |
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| OPE, EMT, MW | 2008-07-25 09:50 |
Hokkaido | Differential Variable Gain Amplifiers Using Bridged-T Attenuator Circuits Kazuyoshi Sakamoto, Masaki Shirata, Kenji Nakamura, Yasushi Itoh (Shonan IT) MW2008-74 OPE2008-57 |
An L-band digitally-controlled, variable gain differential amplifier (VGA) is presented. It employs a bridged-T attenuat... [more] | MW2008-74 OPE2008-57 pp.151-156 |
|
| ED, MW | 2008-01-17 13:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Fully Integrated HBT MMIC Power Amplifier Modules for Use in 2.5/3.5-GHz-Band WiMAX Applications Miyo Miyashita, Toshio Okuda, Hitoshi Kurusu (MELCO), Shoichi Shimamura, Shinsuke Konishi (WTI), Junichi Udomoto, Ryo Matsushita, Yoshinobu Sasaki, Satoshi Suzuki, Takeshi Miura (MELCO), Yoshio Takahara (RSE), Makio Komaru, Kazuya Yamamoto (MELCO) ED2007-220 MW2007-151 |
This paper describes two GaAs HBT MMIC power amplifier modules (PAs) for 2.5-GHz- and 3.5-GHz-band WiMAX applications. E... [more] | ED2007-220 MW2007-151 pp.77-82 |
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