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 Results 1 - 20 of 39  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
WBS, RCC, SAT, MICT
(Joint) [detail]
2021-05-21
13:25
Online Online (Zoom) Relationship between cumulative time percentages and equivalent path lengths of rain attenuation in Ku-band satellite communication links
Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) WBS2021-19 RCC2021-19 SAT2021-17
(To be available after the conference date) [more] WBS2021-19 RCC2021-19 SAT2021-17
pp.101-106(WBS), pp.101-106(RCC), pp.89-94(SAT)
SAT 2019-10-11
09:00
Fukuoka JR HAKATA CITY {10F RoomA+B} Rain Attenuation Characteristics due to Typhoon Passage in Ku-band Satellite Links
Shunichi Sasaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2019-56
Rain attenuation characteristics due to typhoon passage are discussed using the Ku band satellite signal observations co... [more] SAT2019-56
pp.51-54
SAT 2019-10-11
09:50
Fukuoka JR HAKATA CITY {10F RoomA+B} A Comparison between Long-term Rain Attenuation Statistics and ITU-R Prediction Methods in Ku-Band Satellite Links
Kosuke Yamasaki, Yasuyuki Maekawa (Osaka Electro-Comm. Univ.) SAT2019-57
A remarkable increasing tendency of yearly rain attenuation statistics of cumulative time percentages is obtained from l... [more] SAT2019-57
pp.61-64
SAT, WBS
(Joint)
2018-05-24
13:55
Kagoshima Kagoshima University Recent Increasing Trend in Rain Attenuation Statistics of Ku-Band Satellite Communications Links
Yasuyuki Maekawa (Osaka Electro-Commun. Univ) SAT2018-3
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] SAT2018-3
pp.11-14
SAT 2017-10-26
15:40
Okinawa Okinawa Cellular Telephone Company Recent Tendencies of Increase in Yearly Cumulative Time Percentages of Rain Attenuation in Ku-Band Satellite Communications Links
Hidemi Miura, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2017-46
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] SAT2017-46
pp.55-58
AP 2017-04-20
15:15
Osaka Osaka university Relationship between Tropospheric Scintillation and Atmospheric Turbulence in High Elevation Angle Satellite Communications Links
Yasuyuki Maekawa (Osaka Electro-Comun. Univ.) AP2017-9
Variations of Ku-band satellite signal level with periods from a few to a few ten minutes caused by tropospheric scintil... [more] AP2017-9
pp.47-50
AP, SAT, SANE
(Joint)
2016-07-22
10:55
Hokkaido Otaru port marina Long-term Statistics of Rain Attenuation and Their Recent Trend in Ku-Band Satellite Communications Links
Hidemi Miura, Yasuyuki Maekawa (Osaka Electro-Com. Univ.) AP2016-58 SAT2016-24
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] AP2016-58 SAT2016-24
pp.119-122(AP), pp.73-76(SAT)
AP 2016-05-19
14:50
Hyogo kobe Univ. Long-term Yearly Variation of Rain Attenuation Statistics in Ku-Band Satellite Communications Links
Yasuyuki Maekawa, Hidemi Miura (Osaka Electro-Commun. Univ.) AP2016-20
The long-term rain attenuation statistics of cumulative time percentages are obtained from Ku band satellite signal obse... [more] AP2016-20
pp.23-26
AP, RCS, WPT, SAT
(Joint)
2015-11-05
13:35
Okinawa Okinawa Prefectural Museum & Art Museum C/Ku-Band Reflector Antenna for QZSS Tracking Control Stations
Tomohiro Takahashi, Hiroto Ado (Mitsubishi Electric), Syuji Kawano (Mitsubishi Electric Engineering), Koji Yoshida, Hidenori Yukawa, Tetsu Owada, Tomohiro Mizuno, Hiroyuki Sato (Mitsubishi Electric) AP2015-133 SAT2015-55
The Quasi-Zenith Satellite System (QZSS) is a Japanese satellite positioning system for the realization of more precise ... [more] AP2015-133 SAT2015-55
pp.135-140(AP), pp.41-46(SAT)
SAT 2015-10-08
16:10
Osaka Osaka University Nakanoshima Center Relationship between Rain Attenuation Characteristics of Ku-Band Satellite Communications Links and Convective Rain Cloud Distribution in Tropical Region
Keigo Takemoto, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) SAT2015-45
Rain attenuation statistics are obtained for both up and down links of Ku-band Superbird C, which connects the earth sta... [more] SAT2015-45
pp.167-170
AP 2014-05-30
09:45
Okinawa Okinawa Industory Support Center Relationship between Rain Attenuation Duration Time of Ku-Band Satellite Communications Links and Speeds of Rain Area Motion in Equatorial Region
Yasuyuki Maekawa, Keigo Takemoto, Akihiro Tama, Yoshiaki Shibagaki (Osaka Electro-Comm. Univ.) AP2014-29
Rain attenuation statistics are obtained for both up and down links of Ku-band Superbird C, which connects the earth sta... [more] AP2014-29
pp.59-62
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre Effects of rain clouds in the wet season on the Ku-band satellite communications links in the tropical region
Akihiro Tama, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.)
Rain attenuation characteristics of Ku-band satellite communications links are investigated in the wet season of the tro... [more]
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre Effects of rain clouds in the dry season on the Ku-band satellite communications links in the tropical region
Keigo Takemoto, Yoshiaki Shibagaki, Yasuyuki Maekawa (Osaka Electro-Commun. Univ.)
Rain attenuation characteristics of Ku-band satellite communications inks are investigated in the dry season of the trop... [more]
MW
(Workshop)
2012-08-08
- 2012-08-10
Overseas Chulalongkorn University, Bangkok, Thailand Ku-Band Microstrip Phased Array Antenna for Thaicom Satellite Reception
Narong Borijindakul, Chuwong Phongcharoenpanich (KMITL), Bunphot Kliaphuangphit (THAICOM Plc.)
A study of microstrip phased array antenna is presented in this paper. Emphasis is on exploring the potential of such ar... [more]
SAT, SANE
(Joint)
2012-02-16
13:00
Mie   Analysis of Ka- and Ku-band satellite availability and frequency diversity during rain using duration time
Takuya Teramoto, Wataru Chujo (Meijo Univ.), Takeshi Manabe (Osaka Prefecture Univ.), Shinichi Yamamoto (NICT) SAT2011-65
Availability and communication capacity of Ka- and Ku-band satellites during rain using duration time were analyzed. Fir... [more] SAT2011-65
pp.1-6
SAT 2011-12-12
16:35
Aichi Nagoya University Comparison of Rain Attenuation for Frequency Diversity Using a Satellite with Ku-, Ka-Band and Millimeter-Wave Frequencies
Naresh Tripathi, Ayumi Sato, Wataru Chujo (Meijo Univ.), Takeshi Manabe (Osaka Prefecture Univ.), Sin-ichi Yamamoto (NICT) SAT2011-60
In this paper, the attenuation of the Ka-band frequency during rain is calculated by time-series of measured attenuation... [more] SAT2011-60
pp.125-130
SANE 2011-10-18
15:00
Overseas Udayana University, Bali, Indonesia A Modelling Study of Rain Intensity and Rain Attenuation in Ku-band Satellite in Makassar, Indonesia
Zulfajri Basri Hasanuddin, Saidah Suyuti (Hasanuddin Univ.) SANE2011-91
The aim of this study is to determine rain intensity and rain attenuation models in Makassar Area, Indonesia. Some model... [more] SANE2011-91
pp.153-158
AP, SAT
(Joint)
2011-07-15
11:00
Nagano Fac. Eng., Shinshu Univ. Effects of the precipitation clouds on the propagation path of Ku-band satellite communications link in the equatorial region
Yasuyuki Maekawa, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.), Toru Sato, Mamoru Yamamoto, Hiroyuki Hashiguchi (Kyoto Univ.), Shoichiro Fukao (Fukui Univ. of Tech.) AP2011-39
Rain attenuation statistics are obtained for both up and down links of Ku-band Superbird C, which connects the earth sta... [more] AP2011-39
pp.69-74
SAT 2010-10-29
11:30
Overseas Kyonju(Korea) Development of a pico-satellite with a compact Ku-bund transmitter
Shinichi Teshima, Masanori Nishio (Kagoshima Univ.), Tsutomu Tokifuji (Micro Lab) SAT2010-64
Outline and in-orbit verification results of a pico-satellite HAYATO are described. The satellite was developed with a c... [more] SAT2010-64
pp.135-140
RCS, SIP 2010-01-22
13:20
Fukuoka Kyushu Univ. Ultra-compact integrated circuits for Ku-band wireless communication system
Young-Bae Park, Bo-Ra Jung, Jeong-Gab Ju, Jang-hyeon Jeong, Suk-Youb Kang, Young Yun (Korea Maritime Univ.) SIP2009-116 RCS2009-250
In this work, an ultra-compact wireless receiver chip set employing heterojunction bipolar transistor (HBT) were develop... [more] SIP2009-116 RCS2009-250
pp.251-254
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