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 Results 1 - 20 of 38  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP 2022-10-20
13:35
Gifu GIFU CITY CULTURE CENTER
(Primary: On-site, Secondary: Online)
A Study on the Relationship between Atmospheric Inversion Layer and Duct Propagation from Korea in VHF Band
Rikito Tateishi, Makoto Kobayashi, Koichi Shin, Masahiro Nishi (Hiroshima City Univ.) AP2022-140
It is important to understand the radio environment of the VHF band in detail, because the FM broadcast waves in VHF ban... [more] AP2022-140
pp.205-210
RCS, SR, SRW
(Joint)
2022-03-03
09:30
Online Online Highly Efficient Model to Calculate Radio Protection Area for Spectrum Sharing in VHF-Band
Keika Minaki, Shingo Tomida, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SR2021-99
The VHF band is currently allocated for public broadband wireless communication (PBB) systems for safety and security in... [more] SR2021-99
pp.64-70
RCS, SR, SRW
(Joint)
2022-03-03
10:20
Online Online Radio Protection Area Estimation for Sub-6GHz-Band Spectrum Sharing System Assisted by VHF-Band Radio Sensing Information
Shingo Tomida, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2021-73
5G system service was launched in 2020. In Japan, apart from the nationwide public service of 5G systems by telecommunic... [more] SRW2021-73
pp.21-26
WBS, MICT 2021-07-30
14:45
Online Online RRI Measurement Results of Several Persons by a VHF-band Small Loop Antenna with an Adaptive Matching Circuit
Saki Wada, Kengo Nishimoto, Yasuhiro Nishioka, Yoshio Inasawa (Mitsubishi Electric) WBS2021-30 MICT2021-23
There is a radio wave sensor as one of the methods to acquire RRIs without contact. We use a small VHF band antenna that... [more] WBS2021-30 MICT2021-23
pp.45-48
MW 2021-05-20
15:20
Online Online Rectifier circuits for low power high frequency and their application to energy harvesting in the FM broadcast band
Hidefumi Yasuda, Hitoshi Shimasaki (Kyoto Inst Tech.) MW2021-10
In this report, energy harvesting for broadcast radio waves was studied.There had been few research on energy harvesting... [more] MW2021-10
pp.28-31
SRW 2020-06-29
11:45
Online Online A Study on High-speed Reception Gain Control Method for Immediate Synchronization Signal Analysis of VHF-band Broadband Mobile Communication System
Masayuki Ishizaki, Kiyoshi Yamamoto, Tatsuya Abe, Masahiro Asano (Hitachi Kokusai Electric Inc.), Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2020-6
In this report, we propose a high-speed reception gain control method for a real-time delay profile analysis using a syn... [more] SRW2020-6
p.15
SR 2020-06-05
11:30
Online Online A Calculation Model of Protection Area for Spectrum Sharing in VHF-Band
Souhei Yanase, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SR2020-4
When various wireless communication systems share a spectrum, it is necessary to calculate the amount of interference by... [more] SR2020-4
pp.25-32
AP, RCS
(Joint)
2019-11-20
15:45
Saga Saga Univ. [Invited Lecture] Miniaturization of the Shinkansen antenna for overhead line voltage detection and wireless communication
Kengo Nishimoto, Hiroyuki Akutsu, Yasuhiro Nishioka, Naofumi Yoneda (Mitsubishi Electric), Yoshihiro Matsumura, Eishi Sasaki, Takeshi Nishiyama (JR Central) AP2019-115 RCS2019-207
The Shinkansen antenna for overhead line voltage detection and wireless communication antenna has both the function of d... [more] AP2019-115 RCS2019-207
pp.53-58(AP), pp.25-30(RCS)
AP 2019-06-20
14:25
Tokyo Kikai-Shinko-Kaikan Bldg. Study on a VHF-band Small Loop Antenna with Adaptive Control of the Matching Circuit for Heart Rate Sensor
Saki Wada, Kengo Nishimoto, Yasuhiro Nishioka, Naofumi Yoneda (Mitsubishi Electric Corp.) AP2019-18
Vital signs of the body are related to mental stress conditions. The variation of the R-R interval (peak-to-peak interva... [more] AP2019-18
pp.19-22
MW, ICD 2019-03-15
16:20
Okinawa   Experiment on Estimation of Water Content of Hydrated Soil Using Radio Broadcasting Waves Based on Bistatic Radar Technology
Kousei Kumahara, Yuto Uchida, Futoshi Kuroki, Masanori Eguchi (NIT, Kure) MW2018-181 ICD2018-125
Having considered the system early detecting landslides by measuring the water content of land in the MF band so far, th... [more] MW2018-181 ICD2018-125
pp.139-144
RCS, AP
(Joint)
2018-11-22
14:30
Okinawa Okinawa Industry Support Center [Invited Lecture] An Experimental Study on Delay Characteristics in VHF Band
Toshio Ito, Hayato Fukuzono, Masafumi Yoshioka, Tsutomu Tatsuta, Naoki Kita (NTT) AP2018-137 RCS2018-212
In the wireless communications using a VHF band, while the long distance transmission with low attenuation is expectable... [more] AP2018-137 RCS2018-212
pp.197-202(AP), pp.193-198(RCS)
MW
(2nd)
2018-06-27
- 2018-06-29
Overseas KMITL, Bangkok, Thailand Design of Multi-Section LC-Ladder Divider at VHF-Band
Kensuke Nagano, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo)
This paper describes a broadband lumped-element power divider composed of multi-section LC-ladder circuits and an isolat... [more]
RCS, SR, SRW
(Joint)
2018-03-02
16:55
Kanagawa YRP Development of the small-sized radio equipment for multihop relay VHF band broadband mobile communication systems
Kei Yanagisawa, Kiyoshi Yamamoto, Tatsuya Abe, Masayuki Ishizaki, Shota Tobinaga, Nobuto Toguchi, Junya Dosaka, Masahiro Asano, Kazue Kato (Kokusai) RCS2017-404
The radio equipment for conventional VHF broadband mobile communication systems needed a plural radio equipment per 1 ba... [more] RCS2017-404
pp.475-480
ICD, CPSY, CAS 2017-12-15
10:30
Okinawa Art Hotel Ishigakijima Dedicated Antenna Less Power Efficient OOK Transmitter for mm-Cubic IoT Nodes
Ryo Shirai (Osaka Univ.), Tetsuya Hirose (Kobe Univ.), Masanori Hashimoto (Osaka Univ.) CAS2017-104 ICD2017-92 CPSY2017-101
This paper proposes a compact VHF-band OOK transmitter that uses coils for radiation as well as oscillation, eliminating... [more] CAS2017-104 ICD2017-92 CPSY2017-101
pp.159-163
RCS, SR, SRW
(Joint)
2017-03-02
11:40
Tokyo Tokyo Institute of Technology Examination of Impulse Response Model in Non-Line-of-Sight Urban Environment for VHF-band Broadband Mobile Communication System
Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Fumihide Kojima, Hiroshi Harada (NICT) SRW2016-91
Due to the spectrum reallocation plan by the migration to digital terrestrial TV broadcasting in Japan, a portion of VHF... [more] SRW2016-91
pp.135-140
EMCJ 2016-04-15
15:20
Ishikawa Kanazawa Univ. Calculation accuracy of oblique incidence phase characteristics by multi-layer model for composite absorber
Atsushi Arai, Minoru Sato, Takashi Harada, Junichi Suzuki, Kazuya Sasaki (TEE) EMCJ2016-6
For achieving anechoic chamber simulations, the precise information on oblique-incidence reflection properties of the ab... [more] EMCJ2016-6
pp.29-33
RCS, CCS, SR, SRW
(Joint)
2016-03-02
09:00
Tokyo Tokyo Institute of Technology Impulse Response Measurement in Non-Line-of-Sight Urban Environment for VHF-band Broadband Mobile Communication System
Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Hideki Kobayashi, Fumihide Kojima (NICT) SRW2015-70
With the end of analog TV broadcasting in Japan, it is expected that the Public broadband mobile communication system (P... [more] SRW2015-70
pp.1-6
RCS, CCS, SR, SRW
(Joint)
2016-03-03
09:00
Tokyo Tokyo Institute of Technology Experimental evaluation of ARIB STD-T103 VHF broadband mobile communication systems
Kiminobu Makino, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) RCS2015-362
VHF broadband mobile communication systems have been investigated for wider coverage area than conventional cellular pho... [more] RCS2015-362
pp.175-180
PEM
(2nd)
2015-11-27
- 2015-11-28
Kyoto Doshisha Univ. [Poster Presentation] SAR calculations around an implanted cardiac pacemaker due to a mobile radio terminal for business in VHF band
Ryota Akiyama, Kazuyuki Saito (Chiba Univ.), Soichi Watanabe (NICT), Koichi Ito (Chiba Univ.)
Recently, various types of radio communication devices such as cellular phones have become common. Therefore, influence ... [more]
RCS 2015-06-24
13:20
Hokkaido Hokkaido Univ. Multihop relay field experiment using the VHF band broadband mobile communication system in rural area
Kei Yanagisawa, Tatsuya Abe, Yoshihiro Kawashima, Kiyoshi Yamamoto, Masayuki Takekawa, Masayuki Ishizaki, Tomohiro Nozaki, Junya Dosaka, Masahiro Asano, Kazue Kato (Hitachi Kokusai), Hiroshi Harada, Keiichi Mizutani (Kyoto Univ.) RCS2015-48
This paper describes results of relay connection test using a single frequency channel relay system in NLoS (Non-Line-of... [more] RCS2015-48
pp.13-18
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