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All Technical Committee Conferences (Searched in: Recent 10 Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| WPT | 2025-03-11 14:50 |
Kyoto | Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Development of centimeter-wave wideband Quadruple-Ridged Antenna
-- Effects of beam pattern on characteristic degradation of coaxial-to-waveguide transition -- Akira Kameyama, Shuto Dakie, HIdeo Ogawa, Toshikazu Onishi (OMU), Shogo Nohara, Kotaro Ninuma (YU), Yasumasa Yamazaki (NAOJ), Yutaka Hasegawa (NICT), Hideki Uzihara (Rits)  WPT2024-62 |
We have been developing a QRA for VLBI observations in the 6$-$23 GHz band with a specific bandwidth of 117%, and have o... [more] | WPT2024-62 pp.111-114 |
| WPT | 2025-03-11 15:15 |
Kyoto | Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Development of centimeter-wave wideband Quadruple-Ridged Antenna
-- Examination of efficient manufacturing method -- Shogo Nohara, Kotaro Niinuma, Sougo Dan (Yamaguchi Univ.), Akira Kameyama, Shuto Dakie, Ogawa Hideo (Osaka Metropolitan Univ.), Yasumasa Yamasaki, Keiko Kaneko, Tomio Kanzawa, Kenji Mitsui (National Astronomical Observatory of Japan), Yutaka Hasegawa (NICT), Hideki Ujihara (Ritsumeikan Univ.) WPT2024-63 |
The development of Quadruple-Ridged Antenna (QRA) as wideband feed for radio astronomy has been actively studied. QRA f... [more] |
WPT2024-63 pp.115-119 |
| MW | 2024-11-14 10:15 |
Okinawa | JA Kume-jima Yuntaku house (Primary: On-site, Secondary: Online) |
Design and Evaluation of a Broadband Transition between Stripline and Coaxial line Mai Sasaki, Taiyo Ushiyama, Sayu Tomioka, Tsuyoshi Hazemoto, Satoshi Ono (UEC), Sho Masui, Takafumi Kojima (NAOJ), Takeshi Sakai (UEC) MW2024-124 |
[more] | MW2024-124 pp.7-12 |
| EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] | 2023-07-21 09:35 |
Hokkaido | Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
Design and Optimization of Nine-Section Broadband Quadrature Hybrid Coupler Using Strip Line Structure Taiyo Ushiyama, Tsuyoshi Narita, Sayu Tomioka, Satoshi Ono (UEC), Sho Masui, Takafumi Kojima (NAOJ), Takeshi Sakai (UEC) EMT2023-50 MW2023-68 OPE2023-50 EST2023-50 MWPTHz2023-46 |
To upgrade the IF bandwidth of radio telescopes, we are developing a broadband quadrature hybrid coupler using strip lin... [more] | EMT2023-50 MW2023-68 OPE2023-50 EST2023-50 MWPTHz2023-46 pp.208-213 |
| AP (2nd) |
2023-06-01 15:20 |
Nagano | Nagano Prefecture Minamimaki Village Office, Central Public Hall | [Invited Talk]
Large Millimeter and Submillimeter Single-dish Telescopes for Astronomy in the world
-- Present and Future -- Ryohei Kawabe (NAOJ) |
[more] | |
| IN, NS (Joint) |
2023-03-02 13:50 |
Okinawa | Okinawa Convention Centre + Online (Primary: On-site, Secondary: Online) |
A Method for Automatic Generation of 3D Background Models using Fractal Models and Genetic Algorithms Kaito Watanabe, Naoto Hoshikawa (NIT, Oyama College), Hirotaka Nakayama (NAOJ), Tomoyoshi Ito, Atushi Shiraki (Chiba Univ) NS2022-190 |
In recent years, the 3DCG-related industry has grown rapidly and the demand for 3DCG content has increased. However, 3DC... [more] | NS2022-190 pp.133-138 |
| SANE, SAT (Joint) |
2023-03-03 13:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
Experiment of multi-frequency multi-beam pointing with a software defined radio for a synthetic aperture radar with transmission frequency multiplexing Akihisa Uematsu, Toshiyuki Nishibori (JAXA), Noriyuki Kawaguchi (NAOJ) SANE2022-119 |
Experiment for previously proposed transmission frequency multiplexing method for Spaceborne synthetic aperture radar (S... [more] | SANE2022-119 pp.113-117 |
| ICTSSL, CAS | 2023-01-27 17:00 |
Tokyo | TBD (Primary: On-site, Secondary: Online) |
21GHz-band wideband microstrip line bandpass filter using ring resonator and interdigital couplings Kota Ishimura, Koji Wada (UEC), Noriaki Kawaguchi (NAOJ) CAS2022-95 ICTSSL2022-59 |
In this study, the design of a 21GHz-band bandpass filter (BPF) using a ring resonator and an interdigital coupled line ... [more] | CAS2022-95 ICTSSL2022-59 pp.163-167 |
| MW | 2022-12-15 13:05 |
Mie | Jingu-Kaikan(Ise) (Primary: On-site, Secondary: Online) |
Broadband superconducting penta-band bandpass filter for radio astronomy receiver in the UHF band Sota Rachi, Keita Sakuma (Yamanashi Univ.), Takuya Akahori (NAOJ), Naoto Sekiya (Yamanashi Univ.) MW2022-131 |
Mizusawa VLBI Observatory of the National Astronomical Observatory of Japan (NAOJ) has been requested to conduct broadba... [more] | MW2022-131 pp.1-6 |
| MW | 2022-11-15 14:30 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Development of superconducting quad-band bandpass filter for a wideband receiver used in radio astronomy Sota Rachi, Keita Sakuma (Yamanashi Univ.), Takuya Akahori (NAOJ), Naoto Sekiya (Yamanashi Univ.) MW2022-114 |
Mizusawa VLBI Observatory of the National Astronomical Observatory of Japan are promoting the development of broadband r... [more] | MW2022-114 pp.31-36 |
| KBSE, SC | 2022-11-04 16:30 |
Nagano | (Primary: On-site, Secondary: Online) |
Fitness Evaluation Based on 3D Model Generation System by Fractal Model and Genetic Algorithm Kaito Watanabe, Naoto Hoshikawa (NIT, Oyama College), Hirotaka Nakayama (NAOJ), Tomoyoshi Ito, Atushi Shiraki (Chiba Univ) KBSE2022-36 SC2022-31 |
In recent years, the 3DCG-related industry has grown rapidly, and the demand for 3DCG content creation has increased, bu... [more] | KBSE2022-36 SC2022-31 pp.31-36 |
| MW | 2022-06-09 14:00 |
Nagano | Naganoken Nokyo Building (Primary: On-site, Secondary: Online) |
Design and fabrication of stripline type of quadrature hybrid couplers for 3 to 21 GHz band Satoshi Ono, Tsuyoshi Narita (UEC), Sho Masui (OPU/NAOJ), Takafumi Kojima (NAOJ), Takeshi Sakai (UEC) MW2022-24 |
In this study, design and fabrication of broadband quadrature hybrid couplers are shown. Broadside Stripline type of cou... [more] | MW2022-24 pp.7-12 |
| NS | 2021-10-07 09:15 |
Online | Online | Research on procedural technology of 3D landscape image using fractal models and genetic algorithm Kaito Watanabe, Naoto Hoshikawa (Oyama College), Hirotaka Nakayama (NAOJ), Atushi Shiraki, Tomoyoshi Ito (Chiba Univ) |
We propose an automatic generation method of 3D landscape data to meet the growing demand for 3D content and the labor s... [more] | |
| SCE | 2019-08-09 13:05 |
Ibaraki | National Institute of Advanced Industrial Science and Technology | Preparation and evaluation of Nb3Ge superconducting thin films Akira Kawakami, Hirotaka Terai (NICT), Yoshinori Uzawa (NAOJ) SCE2019-13 |
The Nb3Ge thin film with the A15 crystal structure exhibits a superconducting transition temperature of up to 23 K, and ... [more] | SCE2019-13 pp.27-30 |
| MW, ED | 2019-01-17 13:50 |
Tokyo | Hitachi, Central Research Lab. | [Special Talk]
Study on SIS mixer and Waveguide Technologies for Wideband and Low-noise Receivers at Submillimeter Wavelengths Takafumi Kojima (NAOJ) ED2018-74 MW2018-141 |
In recent years, receivers based on superconductor-insulator-superconductor (SIS) mixers at millimeter/submillimeter wav... [more] | ED2018-74 MW2018-141 pp.31-36 |
| ED | 2016-12-20 13:55 |
Miyagi | RIEC, Tohoku Univ | Linearity Measurement of SIS(Superconductor-Insulator-Superconductor) Mixer for Millimeter-Wave Radiometer Naoki Akiyama, Tac Nakajima, Akira Mizuno, Tomoo Nagahama, Kazuji Suzuki (Nagoya Univ.), Yasunori Fujii (NAOJ) ED2016-94 |
(To be available after the conference date) [more] | ED2016-94 pp.75-79 |
| QIT (2nd) |
2016-11-24 13:00 |
Ibaraki | KEK Kobayashi-hall | [Poster Presentation]
Proof-of-Principle Experiment of Quantum Secure Authentication using Adaptive Optics Masahito Oya, Naoto Namekata (Nihon Univ.), Jun Nishikawa (NAOJ), Shuichiro Inoue (Nihon Univ.) |
[more] | |
| SCE | 2016-08-08 13:00 |
Saitama | Saitama Univ. (Omiya sonic city) | Development of Broadband Microstrip Crossover for Millimeter Wave Akira Masuda, Masato Naruse, Tohru Taino, Hiroaki Myoren (Saitama Univ.), Yutaro Sekimoto (NAOJ), Tomu Nitta (Tsukuba Univ.) SCE2016-16 |
We have been developing multi-color superconducting cameras for the survey observations at millimeter and sub-millimeter... [more] | SCE2016-16 pp.25-28 |
| SCE | 2016-08-08 13:25 |
Saitama | Saitama Univ. (Omiya sonic city) | The development of the air-bridge structure of the coplanar waveguide for millimeter-wave band Kazumasa Ito, Masato Naruse (Saitama Univ.), Sho Shibo (Univ. of Tokyo), Yutaro Sekimoto (NAOJ), Tomu Nitta, Tohru Taino, Hiroaki Myoren (Saitama Univ.) SCE2016-17 |
We have been developing superconducting millimeter-wave cameras for astronomy. Our camera consists of a superconducting ... [more] | SCE2016-17 pp.29-33 |
| SANE | 2016-06-24 15:15 |
Ibaraki | Tsukuba Space Center, JAXA | Attitude Control and Visibility Prediction for Optical Link Experiment by LIDAR on Asteroid Explorer Hayabusa-2 Naoko Ogawa, Hiroshi Takeuchi, Tomohiro Yamaguchi, Takanao Saiki (JAXA), Hirotomo Noda (NAOJ), Takahide Mizuno (JAXA), Hiroo Kunimori (NICT), Hiroki Senshu (CIT), Noriyuki Namiki (NAOJ), Yuichi Tsuda (JAXA) SANE2016-18 |
Asteroid Explorer Hayabusa-2, launched in December 2014, is equipped with a laser altimeter LIDAR. The main purpose of ... [more] | SANE2016-18 pp.49-54 |
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