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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ED | 2023-12-08 09:25 |
Aichi | WINC AICHI | Development of Ka band High Power Helix TWT for Satellite Earth Station Daiki Matsumoto, Kahaku Kimura, Tetsuo Machida, Takatsugu Munehiro (NETS)  ED2023-47 |
With the recent advancement of communication capacity and speed, in the field of satellite communications, large-capacit... [more] | ED2023-47 pp.35-38 |
| 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 |
| SAT, KOSST | 2022-10-06 15:05 |
Fukuoka | (Primary: On-site, Secondary: Online) |
Satellite Transmission Experiment for Improvement of Link Margin of APSK Modulation Signal toward UHDTV Satellite Broadcasting for 12-GHz Band Ryota Akiyama, Yuki Koizumi, Shinsuke Yokozawa, Masaaki Kojima, Masafumi Nagasaka, Masashi Kamei (NHK), Susumu Nakazawa, Shuji Kimura, Motoki Matsubara, Hayato Nishida, Shoji Tanaka (B-SAT) SAT2022-46 |
As for the satellite transmission scheme used for 4K/8K ultra-high definition television (UHDTV), ISDB-S3 which supports... [more] | SAT2022-46 pp.12-15 |
| ED | 2021-12-09 10:15 |
Online | Online | Development of 300GHz band TWT with Folded Waveguide Yoshihiro Kajikawa, Daiki Matsumoto, Akihiko Kasahara, Syuji Abiko (NETS) ED2021-38 |
In recent years, there is a growing expectation for next-generation high-capacity high-speed communication and imaging u... [more] | ED2021-38 pp.7-10 |
| ED | 2021-12-09 14:20 |
Online | Online | Optimal Design of Pillbox Window and Electron Gun for TWTs by Using 3D Numerical Simulations Kenji Nakajima (GSST Shizuoka Univ./NECSpace/NETS), Naofumi Kosugi (NETS), Kunio Tsutaki (RIE Shizuoka Univ.), Hidenori Mimura (RIE Shizuoka Univ./GSST Shizuoka Univ.) ED2021-44 |
Conventionally, the optimal design of TWT has been carried out by 2D axisymmetric simulation based on the theory of TWT ... [more] | ED2021-44 pp.32-37 |
| SAT | 2021-10-07 16:10 |
Online | Online | [Special Talk]
Thales TWT for satellites : last developments and technical progress Franck Beillevaire (TAVS) SAT2021-45 |
Thales’ space amplification leadership As the world’s leading supplier of Travelling Wave Tubes (TWTs), Thales has mo... [more] |
SAT2021-45 p.16 |
| ED | 2019-11-21 15:45 |
Tokyo | Volcano structured field emitter array for large current Yuta Nabuchi (AIST/Shizuoka Univ.), Masayoshi Nagao, Katsuhisa Murakami (AIST), Hidenori Mimura, Yoichiro Neo (Shizuoka Univ.) ED2019-65 |
We have developed a Volcano-structured double gate Spindt-type field emitter arrays (VDGS-FEA). It can focus the electro... [more] | ED2019-65 pp.25-28 |
|
| SANE, SAT (Joint) |
2019-02-14 11:15 |
Kagoshima | Tanegashima Island | Evaluation of Satellite Transmission Characteristics of ISDB-S3 for 4K/8K Broadcasting Shinsuke Yokozawa, Masaaki Kojima, Masashi Kamei, Kazunori Yokohata (NHK), Hayato Nishida (B-SAT), Hisashi Sujikai (NHK) SAT2018-77 |
4K/8K broadcasting with the BSAT-4a satellite began in Dec. 2018. This broadcasting adopts the ISDB-S3 technical standar... [more] | SAT2018-77 pp.115-118 |
| ED | 2017-10-26 14:45 |
Miyagi | Development Activity of Vacuum Electronics in THz Band Yoshihiro Kajikawa, Mitsuru Yoshida, Takatsugu Munehiro, Norio Masuda (NETS), Norihiko Sekine, Atsushi Kanno, Naokatsu Yamamoto, Akifumi Kasamatsu, Iwao Hosako (NICT) ED2017-39 |
At frequencies in “Terahertz Gap” band, power generating technology has been one of major R&D challenges. Recently, vacu... [more] | ED2017-39 pp.13-16 |
|
| ED | 2017-10-26 15:30 |
Miyagi | A Study of 300GHz band TWT Design with Folded Waveguide Fabricated by Micro Electro Mechanical Systems Kunio Tsutaki, Yoichiro Neo, Hidenori Mimura (Sizuoka Univ.), Yoshihiro Kajikawa, Norio Masuda, Mitsuru Yoshida (NEC Network and Sensor Systems) ED2017-40 |
We have been developing a 300GHz band folded waveguide TWT fabricated by Micro Electro Mechanical Systems for the future... [more] | ED2017-40 pp.17-22 |
|
| ED | 2016-10-25 14:15 |
Mie | Development Activity of Vacuum Electronics in THz Band Mitsuru Yoshida, Junichi Kobayashi, Yusuke Fujishita, Norio Masuda (NETS), Norihiko Sekine, Atsushi Kanno, Naokatsu Yamamoto, Akifumi Kasamatsu, Iwao Hosako (NICT) ED2016-45 |
There is a region called "Terahertz Gap" between the highest frequency of microwave technology and the lowest frequency ... [more] | ED2016-45 pp.9-12 |
|
| ED | 2015-10-22 16:20 |
Aichi | Development Activity of Vacuum Electronics in THz Band Mitsuru Yoshida, Koji Okamoto, Norio Masuda, Junichi Matsuoka (NETS), Norihiko Sekine, Atsushi Kanno, Naokatsu Yamamoto, Iwao Hosako (NICT) ED2015-60 |
There is a region called "Terahertz Gap" between the highest frequency of microwave technology and the lowest frequency ... [more] | ED2015-60 pp.31-34 |
|
| ED | 2014-10-22 11:00 |
Hokkaido | Hokkaido Univ. (Faculty House Trillium) | Development Trend and Activity of Vacuum Electronics in THz Band Mitsuru Yoshida, Koji Okamoto, Norio Masuda, Junichi Matsuoka (NCS), Norihiko Sekine, Atsushi Kanno, Tetsuya Kawanishi, Iwao Hosako (NICT) ED2014-71 |
The terahertz wave radiation has been studied in astronomy, analytical science and limited field. The applicability in t... [more] | ED2014-71 pp.43-47 |
| ED | 2014-10-22 11:25 |
Hokkaido | Hokkaido Univ. (Faculty House Trillium) | A Study of 300GHz band TWT Design with Folded Waveguide fabricated by Micro Electro Mechanical System Mitsuru Yoshida, Junichi Matsuoka (NCS), Kunio Tsutaki, Yoichiro Neo, Hidenori Mimura (Shizuoka Univ.) ED2014-72 |
Recently, there are strong demands to expand the use of the broad band wireless communication. In order to meet these de... [more] | ED2014-72 pp.49-54 |
| ED | 2013-10-23 11:15 |
Hokkaido | Enreisou, Hokkaido Univ. | Development of an X-band 800W pulse mini-TWT for Phased Array Applications Takatsugu Munehiro, Junichi Kobayashi, Mitsuru Yoshida, Junichi Matsuoka (NCS), Yoshinobu Ueda, Satoshi Kainuma (NEC) ED2013-62 |
Various phased array systems enable usage in radar and communication applications. These systems can produce a high dire... [more] | ED2013-62 pp.53-57 |
| ED | 2011-10-20 14:50 |
Aomori | Development of High Efficiency S-band TWT Koji Okamoto, Yukihira Nakazato, Mitsuru Yoshida, Junichi Matsuoka, Wako Suzuki (NCS) ED2011-61 |
NETCOMSEC Co. Ltd. developed a High Efficiency S-band 2kWpeak/1kWCW TWT (Traveling Wave Tube) as an amplifier which is u... [more] | ED2011-61 p.9 |
|
| SANE, SAT (Joint) |
2011-02-25 09:00 |
Hyogo | NICT Kobe Research Laboratories | Compensation of transponder nonlinearity for superpositioning satellite communications Hiroki Matsuda, Takehiro Ishiguro, Kayoko Osawa, Takao Hara, Minoru Okada (NAIST) SAT2010-82 |
In the power limited satellite system it is mandatory to use the transponder amplifier effectively as far as possible. ... [more] |
SAT2010-82 pp.37-42 |
| ED | 2010-10-26 11:10 |
Kyoto | Development of Short Warm Up Ku-band 250W TWT Akira Chiba, Junichi Kobayashi, Yuudai Ninomiya, Shuuji Abiko, Takashi Kanamoto, Junichi Matsuoka (NCS) ED2010-140 |
NETCOMSEC Co. Ltd. developed a Short Warm Up Ku-band 250W TWT (Traveling Wave Tube) as an amplifier which is used for sa... [more] | ED2010-140 pp.61-65 |
|
| SAT | 2009-10-29 13:20 |
Nara | Nara Prefectural New Public Hall | Experimental Test of Frequency Reuse Interference Canceller in the Path Containing Nonlinear TWTA Kenta Kubo, Hiroki Matsuda, Kayoko Osawa (NAIST), Taro Shimada, Shigeo Naoi, Yozo Takeda (SKY perfectJSAT), Ryusuke Miyamoto, Takao Hara, Minoru Okada (NAIST) SAT2009-22 |
The interference canceller for satellite carrier superpositioning multi-level PSK transmission has been designed and d... [more] |
SAT2009-22 pp.23-28 |
| AP, SAT (Joint) |
2009-07-10 11:45 |
Hokkaido | Otaru city, Hokkaido | A study of transmission capacity on 21GHz broadcasting satellite transponder Hajime Matsumura (B-SAT) SAT2009-17 |
This paper presents methodology to evaluate the transmission capacity of the 21GHz broadcasting satellite transponder. ... [more] | SAT2009-17 pp.57-62 |
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