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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 83件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW, WPT 2020-04-23
16:05
Tokyo Kikai-Shinko-Kaikan Bldg Basic Study of Patch Antenna with DC block and Class-F Load Impedance for 2.45 GHz Microwave Power Transfer
Shunya Ban, Takase Ohshima, Hiroshi Hirayama (NIT)
 [more]
MW, WPT 2020-04-23
16:30
Tokyo Kikai-Shinko-Kaikan Bldg Integrated power amplifier design with antenna
Asako Suzuki (Nagoya Univ.), Shunya Ban, Takase Oshima, Hiroshi Hirayama (NITech), Shinji Hara (Nagoya Univ.)
 [more]
AP, WPT
(Joint)
2020-01-24
12:55
Kagawa Sunport Hall Takamatsu Basic Study of Patch Antenna with Class-F Load Impedance for 2.45 GHz Microwave Power Transfer
Takase Oshima, Hiroshi Hirayama (NITech) AP2019-171 WPT2019-54
A novel patch antenna with class-F load function for microwave power transfer is proposed. Conventionally, class-F load ... [more] AP2019-171 WPT2019-54
pp.117-120(AP), pp.29-32(WPT)
WPT, EE
(Joint)
2019-10-10
15:20
Shiga Ryukoku Extension Center, Ryukoku University High-power high-frequency impedance measurement for non-linear DUT
Takase Ohshima, Hiroshi Hirayama (NIT) WPT2019-43
It is necessary to measure impedance of a rectifying circuit to design a matching circuit for wireless power transfer sy... [more] WPT2019-43
pp.89-94
WPT, AP
(Joint)
2019-01-17
13:35
Aichi Toyota Automobile Museum [Invited Lecture] Near-field Wireless Power Transfer for Small Model Vehicle using Collinear Array Antenna
Jun Deguchi, Kazuhiro Yoshikawa, Hiroshi Hirayama (Nagoya Inst. of Tech.) WPT2018-55
 [more] WPT2018-55
pp.7-12
WPT
(2nd)
2018-11-02
- 2018-11-04
Miyagi Tohoku University Near-field Wireless Power Transfer for Moving Vehicle using Collinear Array Antenna
Jun Deguchi, Hiroshi Hirayama (Nagoya Inst. of Tech.)
In this report, near-field wireless power transfer for a moving vehicle using a collinear array antenna is proposed. Col... [more]
WPT, EE
(Joint)
2018-10-03
10:15
Kyoto Kyoto Univ. Uji Campus A comparison of characteristics of self-resonant and LC-resonant coupler for coupling wireless power transfer
Takaya Arai, Hiroshi Hirayama (NIT) WPT2018-31
 [more] WPT2018-31
pp.11-15
WPT 2017-06-12
14:15
Kagoshima Kagoshima Univ. Characteristics of a Folded Spiral Antenna for coupled-resonant Wireless Power Transfer
Kohei Nimura, Hiroshi Hirayama (Nagoya Inst. of Tech.) WPT2017-11
Coupled resonant wireless power transfer system has an advantage of high efficient mid-range power transmission where im... [more] WPT2017-11
pp.17-22
WPT
(2nd)
2015-12-10
15:50
Overseas TamKang University, Tamsui Campus Transmission Characterisitics of Wireless Power Transfer with Self-Resonant Antenna Using an Existing Structure as a Repeater
Shohei Fukasawa, Keigo Nakamura, Hiroshi Hirayama (NIT)
Wireless power transfer (WPT) technology using existing structure, such as a reinforcing bar, as a repeater to extend po... [more]
WPT
(2nd)
2015-12-10
16:50
Overseas TamKang University, Tamsui Campus Transmission Characteristics of Tape-wound Spiral Antenna for Coupled Resonant Wireless Power Transfer
Keigo Nakamura, Hiroshi Hirayama (Nagoya Inst. of Tech.)
 [more]
AP, RCS, WPT, SAT
(Joint)
2015-11-04
11:25
Okinawa Okinawa Prefectural Museum & Art Museum [Tutorial Lecture] Basics of Coupled Wireless Power Transfer from Viewpoint of Impedance Matching and Resonant
Hiroshi Hirayama (Nagoya Inst. of Tech.) AP2015-113 WPT2015-49
Wireless power transfer (WPT) technology using near field is getting large interest. WPT system using coupling coil base... [more] AP2015-113 WPT2015-49
pp.17-22
AP, RCS, WPT, SAT
(Joint)
2015-11-06
13:35
Okinawa Okinawa Prefectural Museum & Art Museum A Basic Study on Wireless Power Transfer with Self-Resonant Antenna Using an Existing Structure as a Repeater
Shohei Fukasawa, Keigo Nakamura, Hiroshi Hirayama (NIT) WPT2015-61
Recently, coupled-resonant wireless power transfer (WPT) technology is getting large interests for charge of cellular ph... [more] WPT2015-61
pp.79-84
AP 2014-12-11
12:50
Tokyo Kikai-Shinko-Kaikan Bldg. DOA Estimation of Desired Signals Using In-Phase Combining of Multiple Cyclic Correlations and Its Performance Improvement by SAGE Algorithm
Naoki Hirose, Nobuyoshi Kikuma, Hiroshi Hirayama, Kunio Sakakibara (Nagoya Inst. of Tech.) AP2014-153
Direction-of-arrival (DOA) estimation methods using a cyclic correlation based on the cyclostationarity of digital-modul... [more] AP2014-153
pp.13-18
AP, WPT
(Joint)
2014-10-17
09:20
Hokkaido Hokkaido University, Clark Memorial Student Center A Consideration of Location Estimation of Coherent Near-field Sources by Combined Use of DOA-Matrix Method and SAGE Algorithm
Kyohei Takeuchi, Nobuyoshi Kikuma, Hiroshi Hirayama, Kunio Sakakibara (NIT) AP2014-119
It is important to understand the radio wave propagation structures in mobile or indoor wireless communications. One of ... [more] AP2014-119
pp.61-66
AP, WPT
(Joint)
2014-10-17
09:45
Hokkaido Hokkaido University, Clark Memorial Student Center A Consideration on Simple Decoupling Circuit without Three-dimensional Structure for MIMO Antennas
Masahiro Mori, Nobuyoshi Kikuma, Hiroshi Hirayama, Kunio Sakakibara (NIT) AP2014-120
Recently, the MIMO (Multiple-Input Multiple-Output) technology has been introduced into the portable terminals correspon... [more] AP2014-120
pp.67-72
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] Propagation Delay Time Estimation of Direct Wave in Multipath Environments Using Frequency Sample Data
Yoshiki Oishi, Nobuyoshi Kikuma, Hiroshi Hirayama, Kunio Sakakibara (NIT)
This paper examines the propagation delay time estimation of the direct wave in multipath environments for radio source ... [more]
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] Miniaturization of Four-Port Planar Microstrip-to-Waveguide Transitions with Slot Radiator for Center-Feeding Microstrip Array Antennas
Hiroaki Yamada, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama (NIT)
Four-port microstrip-to-waveguide transitions have been developed for a feeding circuit of microstrip array antennas. We... [more]
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] Design of Hollow-Waveguide Narrow-Wall Slot Array Antenna using Partially Parallel-Feeding System in Millimeter-Wave Band
Yuichi Hirayama, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama (NIT)
A hollow-waveguide narrow-wall slot array antenna fed by partially parallel-feeding system is designed to decrease frequ... [more]
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] Miniaturization of Period of Frequency Selective Surface by Multiplexing Loops of Complementary Split Ring Resonator
Yuto Amano, Kunio Sakakibara (NIT), Shinya Iwanaga, Kiyotaka Kumaki, Satoshi Hori (KOJIMA INDUSTRIES), Nobuyoshi Kikuma, Hiroshi Hirayama (NIT)
The Split Ring type Frequency Selective Surface is developed to miniaturize the period by multiplexing the loop. Simulat... [more]
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] Design of Spiral-Slot Frequency Selective Surface for Shielding from Noises of Wireless Power Transmission
Kei Firdaus, Kunio Sakakibara (NIT), Teruhito Tayama, Takanobu Tabata, Satoshi Hori (Kojima Industries), Nobuyoshi Kikuma, Hiroshi Hirayama (NIT)
Although various wireless technologies have been developed, it has brought radio-frequency interference that causes sign... [more]
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