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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SAT, KOSST | 2023-10-11 09:00 |
Overseas | Central Hotel Marianne（Korea, Busan） (Primary: On-site, Secondary: Online) |
A Study on the Reference Receiving Earth Station Antenna Pattern for the Broadcasting Satellite Service Susumu Nakazawa, Shoji Tanaka, Kazuyoshi Shogen (B-SAT)  SAT2023-53 |
[more] | SAT2023-53 pp.28-32 |
| 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 |
| AP, SANE, SAT (Joint) |
2022-07-27 13:30 |
Hokkaido | Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
A Consideration on the Radiation Pattern of NGSO Satellite Onboard Phased Array Antenna Susumu Nakazawa, Motoki Matsubara, Syuji Kimura, Shihoko Nakamichi, Shoji Tanaka, Kazuyoshi Shogen (B-SAT), Junichi Takiyama (SED) AP2022-39 SANE2022-24 SAT2022-20 |
[more] | AP2022-39 SANE2022-24 SAT2022-20 pp.28-33(AP), pp.12-17(SANE), pp.18-23(SAT) |
| AP, WPT (Joint) |
2022-01-20 15:10 |
Tottori | Kenmin-Fureai-Kaikan (Primary: On-site, Secondary: Online) |
[Tutorial Lecture]
Research of On board Array-fed Reflector Antenna for 21GHz-band Broadcasting Satellite Shoji Tanaka, Susumu Nakazawa (B-SAT), Masafumi Nagasaka (NHK) AP2021-146 |
[more] | AP2021-146 pp.64-69 |
| RCS, SAT (Joint) |
2021-08-26 18:05 |
Online | Online | Measurement of Off-Axis Radiation Power from NGSO Communication Satellite Operating in the Space Kazuyoshi Shogen, Susumu Nakazawa, Shoji Tanaka (B-SAT) SAT2021-33 |
This paper describes the measurement of the off-axis radiation power from a non-geostationary satellite orbit (NGSO) com... [more] | SAT2021-33 pp.27-32 |
| RCS, SAT (Joint) |
2019-08-22 09:50 |
Aichi | Nagoya University | 8K120Hz Transmission Experiment with 21GHz-band through Broadcast Satellite BSAT-4a Yuki Koizumi, Yoichi Suzuki, Shinya Abe, Kazunori Yokohata, Hisashi Sujikai (NHK), Susumu Nakazawa, Osamu Yamazaki (B-SAT) SAT2019-19 |
NHK conducted a wide-band transmission experiment with the 21GHz-band through broadcasting satellite BSAT-4a at NHK STRL... [more] | SAT2019-19 pp.13-17 |
| SANE, SAT (Joint) |
2019-02-14 10:50 |
Kagoshima | Tanegashima Island | 21-GHz Wide-band satellite transmission experiment with BSAT-4a broadcasting satellite Yoichi Suzuki, Yuki Koizumi, Shinya Abe, Kazunori Yokohata (NHK), Susumu Nakazawa, Osamu Yamazaki (B-SAT), Hisashi Sujikai (NHK) SAT2018-76 |
To achieve the wide-band transmission for full-specification 8K Super Hi-Vision and Diverse Vision, a wide-band transmis... [more] | SAT2018-76 pp.109-114 |
| AP, SANE, SAT (Joint) |
2018-07-18 14:30 |
Hokkaido | Hokkaido Univ. | Prompt Report on Wide-band Transmission Experiment with 21-GHz band Broadcasting Satellite in NHK STRL OPEN HOUSE 2018 Yoichi Suzuki, Hisashi Sujikai, Yuki Koizumi, Masafumi Nagasaka, Masaaki Kojima, Atsushi Iwasaki, Shoji Tanaka (NHK), Susumu nakazawa, Osamu Yamazaki (B-SAT) SAT2018-14 |
[more] | SAT2018-14 pp.19-23 |
| CS, IE, IPSJ-AVM, ITE-BCT [detail] | 2017-11-30 14:35 |
Aichi | Nagoya University | Efforts toward Transmission Experiments Utilized 21-GHz Band Transponder of Broadcasting Satellite Masafumi Nagasaka, Susumu Nakazawa, Hisashi Sujikai, Shoji Tanaka (NHK) |
[more] | |
| AP | 2017-04-21 09:30 |
Osaka | Osaka university | A Study on 12/21-GHz Dual-circularly Polarized Feed Antenna for Satellite Broadcasting Reception Masafumi Nagasaka, Susumu Nakazawa, Atsushi Iwasaki, Shoji Tanaka (NHK) AP2017-12 |
NHK started test satellite broadcasting of UHDTV by using BS-17 transponder in August 2016, and practical broadcasting w... [more] | AP2017-12 pp.59-64 |
| AP, SAT, SANE (Joint) |
2016-07-22 09:55 |
Hokkaido | Otaru port marina | Relation between Interference and the Increase of Outage Time Caused by Rain Attenuation in the Beoadcasting Satellite link Kazuyoshi Shogen (B-SAT), Susumu Nakazawa, Shoji Tanaka (NHK) AP2016-56 SAT2016-22 |
We have proposed to evaluate the impact of interference on the performance of BSS (Broadcasting Satellite Services) in t... [more] | AP2016-56 SAT2016-22 pp.109-113(AP), pp.63-67(SAT) |
| SAT, SANE (Joint) |
2016-02-17 13:10 |
Hiroshima | Hiroshima Institute of Technology | Wideband Transmission Performance over Proto-type Transponder for 21GHz-band Broadcasting Satellite under Thermal Vacuum Masaaki Kojima, Masashi Kamei, Masafumi Nagasaka, Susumu Nakazawa, Yoichi Suzuki, Yuki Koizumi, Kyoichi Saito, Shoji Tanaka, Tomohiro Saito (NHK) SAT2015-74 |
We are studying a satellite broadcasting system using 21GHz-band (21.4-22.0GHz) to provide higher realistic sensation se... [more] | SAT2015-74 pp.61-64 |
| RCS, SAT (Joint) |
2015-08-17 12:10 |
Fukuoka | Fukuoka Univ. | 8K Super Hi-Vision Satellite Broadcasting Experiment in NHK STRL OPEN HOUSE 2015 Yoichi Suzuki, Masaaki Kojima, Masashi Kamei, Masafumi Nagasaka, Susumu Nakazawa, Shoji Tanaka (NHK) SAT2015-13 |
[more] | SAT2015-13 pp.11-15 |
| AP | 2015-02-20 10:50 |
Hyogo | Chusho-kigyou center at Amagasaki-City | [Invited Lecture]
A Study on Quad-band Shaped Reflector Antenna for Broadcasting Satellite Susumu Nakazawa, Masafumi Nagasaka, Masashi Kamei, Shoji Tanaka (NHK), Hitoshi Nakagawa, Kazuyoshi Shogen (B-SAT) AP2014-201 |
[more] | AP2014-201 pp.81-84 |
| AP, SAT (Joint) |
2014-07-25 10:55 |
Gifu | Gero Citizen Hall | A Study of Rain Attenuation on Short-term Rainfall in Some Points with Different Yearly Rainfall Rates
-- A Basic Study for Compensation of Rain Attenuation by Locally Variable EIRP System for 21GHz-band Broadcasting Satellites -- Masashi Kamei, Susumu Nakazawa, Shoji Tanaka (NHK) AP2014-62 SAT2014-15 |
Satellite broadcasting in the band 21.4 - 22.0 GHz is expected to provide advanced broadcasting services such as UHDTV a... [more] | AP2014-62 SAT2014-15 pp.79-83(AP), pp.17-21(SAT) |
| SAT, SANE (Joint) |
2014-02-20 15:20 |
Yamaguchi | Hotel Kamefuku (Yamaguchi) | A Study on Phase Detection of 21-GHz Band Broadcasting Satellite with Array-fed Reflector Antenna Masafumi Nagasaka, Masashi Kamei, Susumu Nakazawa, Shoji Tanaka, Tetsuomi Ikeda (NHK) SAT2013-55 |
A 21-GHz band satellite broadcasting system is being studied as a means to achieve a large transmission capacity for del... [more] | SAT2013-55 pp.29-34 |
| AP, ITE-BCT | 2013-02-07 10:00 |
Tokyo | AIST Tokyo Waterfront | Equalized Excitation Coefficient Distribution of Array-fed Shaped Reflector Antenna for 21-GHz Broadcasting Satellite Susumu Nakazawa, Masafumi Nagasaka, Shoji Tanaka (NHK) |
[more] | |
| MW (Workshop) |
2012-08-08 - 2012-08-10 |
Overseas | Chulalongkorn University, Bangkok, Thailand | Radiation Pattern of Array-fed Imaging Reflector Antenna in 21GHz-band Masafumi Nagasaka, Susumu Nakazawa, Shoji Tanaka (NHK), Kazuyoshi Shogen (B-SAT) |
In order to overcome the large rain attenuation, a reconfigurable antenna with an array-fed reflector is effective for t... [more] | |
| AP, ITE-BCT | 2012-02-10 13:25 |
Hiroshima | NHK Hiroshima | A Study on 12/21GHz Dual-Band Feed for Satellite Broadcasting Receiving Antenna Masafumi Nagasaka, Susumu Nakazawa, Shoji Tanaka (NHK) |
The 21GHz-band satellite broadcasting system is studied for transmission channels to deliver ultra high definition TV, 3... [more] | |
| AP, ITE-BCT | 2012-02-10 13:50 |
Hiroshima | NHK Hiroshima | Transmission Test Using a Deployable Mesh Reflector Antenna for Satellite News Gathering Susumu Nakazawa, Masafumi Nagasaka, Shoji Tanaka, Yuji Ishidou, Hiroyuki Kondou (NHK) |
[more] | |
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