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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2024-02-29 14:55 |
Okayama | Okayama Prefectural University (Primary: On-site, Secondary: Online) |
A design of H-plane waveguide directional coupler with X-type intersection Mitsuyoshi Kishihara, Koichiro Sakaguchi, Kensuke Okubo (Okayama Pref. Univ.), Isao Ohta (Univ. of Hyogo)  MW2023-182 |
The cruciform directional coupler which consists of two rectangular waveguides crossing each other at right angles has b... [more] | MW2023-182 pp.43-47 |
| MW | 2022-03-03 09:15 |
Online | Online | Stripline-Type Cruciform Directional Couplers Mitsuyoshi Kishihara (Okayama Pref. Univ.), Isao Ohta (Univ. of Hyogo) MW2021-111 |
Directional couplers of simple structure which consist of H-plane or E-plane waveguides crossing in cruciform and posses... [more] | MW2021-111 pp.1-6 |
| MW | 2021-05-20 13:30 |
Online | Online | Trial Fabrication and Evaluation of PTFE Substrate Integrated Waveguide Butler Matrix for Short Millimeter-Wave Mitsuyoshi Kishihara (Okayama Pref. Univ.), Kaito Fujitani, Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta (Univ. of Hyogo) MW2021-6 |
This paper attempts to fabricate and evaluate a 4×4 Butler matrix for short millimeter-wave, based on the fabrication pr... [more] | MW2021-6 pp.5-10 |
| WPT | 2021-03-05 13:30 |
Online | Online | [Invited Lecture]
Dynamic Wireless Power Transfer via Electric and Magnetic Hybrid Fields Achieving Reception of Reflected Waves Aoi Oyane, Daiki Kuramoto, Hiromichi Ohno, Masayoshi Yamamoto (Nagoya Univ.) WPT2020-47 |
We demonstrated a 27.12MHz dynamic wireless power transfer using a model car in the Movie Contest of Dynamic Wireless Po... [more] | WPT2020-47 pp.67-72 |
| WPT, EE (Joint) |
2020-10-07 15:05 |
Online | Online | Measurement Method of High-Frequency-Voltage/Current Waveforms using Directional Coupler and its Calibration Takuma Nakae, Hiroshi Hirayama (NIT) WPT2020-22 |
This report proposes a measurement method of voltage/current waveform assuming applications of wireless power transfer(W... [more] | WPT2020-22 pp.18-23 |
| MW | 2020-03-05 10:55 |
Kochi | Kochi City Culture-Plaza CUL=PORT (Cancelled but technical report was issued) |
Inductor-less Active Directional Coupler Takanobu Fujiwara, Tatsuya Hagiwara, Masaomi Tsuru (MELCO) MW2019-141 |
In order to miniturize the directional coupler, one of the best option is to use inductors and capacitors instead of cou... [more] | MW2019-141 pp.5-9 |
| AP | 2019-10-17 12:30 |
Osaka | Osaka Univ. | [Poster Presentation]
Measurement of Rectify Impedance by Using Directional Coupler Yukina Ono, Takumi Aoki, Yuan Qiaowei (NIT Sendai) AP2019-93 |
In this paper, the rectifier impedance estimation method using a directional coupler is proposed. The method can measure... [more] | AP2019-93 pp.69-71 |
| 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 |
| MW, EST, OPE, MWP, EMT, IEE-EMT, THz [detail] | 2019-07-18 10:00 |
Hokkaido | Hakodate City Central Library | Study on efficient optimal design of directional coupler type optical devices utilizing neural network Koji Kudo, Yasuhide Tsuji (Muroran Inst. of Tech.) EMT2019-20 MW2019-33 OPE2019-24 EST2019-22 MWP2019-20 |
We study on efficient optimal design of optical devices utilizing neural network. By making the neural network learn a ... [more] |
EMT2019-20 MW2019-33 OPE2019-24 EST2019-22 MWP2019-20 pp.85-89 |
| MW | 2017-12-19 15:50 |
Tokyo | Proposal of Reflective Circuit and Variable-Attenuation-Phase Shifter with Independently Controllable Amplitude and Phase Shosei Tomida, Satoshi Kitabayashi, Yuichi Miyaji, Masaya Tamura (Toyohashi Univ. of Tech.) MW2017-151 |
Variable attenuators and phase shifters are used in various wireless systems. However, there are few reports for miniatu... [more] | MW2017-151 pp.53-58 |
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| OPE | 2017-12-07 13:15 |
Okinawa | [Poster Presentation]
High extinction ratio of polarization splitter based on directional coupler Hiroya Mitsuno, Takeo Maruyama (Kanazawa Univ.) OPE2017-100 |
High refractive index difference of silicon waveguide enables high-density integration, but due to strong polarization d... [more] | OPE2017-100 pp.59-62 |
|
| MW | 2017-05-18 14:50 |
Osaka | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) | Design of 0-dB Forward Coupler Using Left-Handed Waveguide of Cutoff TM-mode Seiichi Ohkubo, Mitsuyoshi Kishihara, Kensuke Okubo, Hironori Takimoto (Okayama Pref. Univ.), Isao Ohta (Univ. of Hyogo) MW2017-10 |
Because the TM-mode waveguide below the cutoff frequency shows negative permeability, a left-handed waveguide can be con... [more] | MW2017-10 pp.13-17 |
| MW, ICD | 2017-03-02 09:00 |
Okayama | Okayama Prefectural Univ. | Fabrication of Integrated PTFE-Filled Waveguide Butler Matrix for Short Millimeter-Wave by SR Etching
-- Construction Using Cruciform Couplers and Intersection Circuits -- Mitsuyoshi Kishihara (Okayama Pref. Univ.), Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta (Univ. of Hyogo) MW2016-188 ICD2016-118 |
This paper attempts to fabricate an integrated waveguide Butler matrix for short millimeter-wave using SR etching proces... [more] | MW2016-188 ICD2016-118 pp.1-6 |
| MW | 2016-06-23 13:25 |
Gifu | Gifu Univ. | Design and Analysis of Quarter-Wave Coupled-Line Directional Couplers for Setting Reference Impedances Different from One Another at Four Ports Consisting of Coupled Strip Line Takeshi Oshima, Naofumi Yoneda, Hiroaki Miyashita, Moriyasu Miyazaki (Mitsubishi Electric Corp.), Koji Wada (UEC) MW2016-31 |
This report presents design and analysis of quarter-wave coupled-line directional couplers for setting reference impedan... [more] | MW2016-31 pp.7-12 |
| MW | 2016-05-19 15:25 |
Kyoto | Kyoto Univ. | A Directivity Enhancement for Directional Couplers Using Three-Conductor Coupled Lines Hidehar Yoshioka, Akimichi Hirota, Hidenori Ishibashi, Naofumi Yoneda, Moriyasu Miyazaki (Mitsubishi) MW2016-10 |
In a coupled-line directional coupler formed on thin multi-layered substrates, it is difficult to match coupled-line cha... [more] | MW2016-10 pp.7-10 |
| EMCJ | 2015-05-15 13:50 |
Kagawa | Next Kagawa | Development on a Standard Magnetic Field Generator in the Frequency Range below 30 MHz Katsumi Fujii, Kanako Wake (NICT), Masanori Ishii (AIST) EMCJ2015-13 |
A standard magnetic field generator in the frequency range below 30 MHz is proposed to calibrate loop antennas and probe... [more] | EMCJ2015-13 pp.31-36 |
| MW | 2014-11-20 11:00 |
Nagasaki | Nagasaki Univ. | A Directivity Enhancement for Directional Couplers Using Additional Coupled Lines with Reverse-Phase Forward Couplings Hideharu Yoshioka, Akimichi Hirota, Kazuya Yamamoto, Hidenori Ishibashi, Yukihiro Tahara (Mitsubishi Electric) MW2014-126 |
In a coupled-line directional coupler formed on thin multi-layered substrates, it is difficult to match coupled-line cha... [more] | MW2014-126 pp.17-22 |
| MW | 2014-05-22 15:00 |
Kyoto | Doshisha Univ. | An Analysis of Phase Constant of Coupled-Trough-Waveguide Based on E-plane Planar Circuit Approach
-- Application to 0-dB Forward Coupler Using Trough-Waveguide -- Yuya Namba, Mitsuyoshi Kishihara (Okayama Pref. Univ.), Isao Ohta (Univ. of Hyogo), Kensuke Okubo, Hironori Takimoto (Okayama Pref. Univ.) MW2014-32 |
In this paper, the trough-waveguide consisting of metallic plates is treated as a E-plane planar circuit that has discon... [more] | MW2014-32 pp.49-53 |
| MW | 2014-03-04 11:00 |
Ehime | Ehime University | Waveguide Loop-type Directional Couplers Using a Coupling Conductor with Protuberances Hidenori Ishibashi, Yukihiro Tahara, Hidenori Yukawa (Mitsubishi Electric), Manabu Kurihara (RSEC), Tetsu Owada, Moriyasu Miyazaki (Mitsubishi Electric) MW2013-199 |
The waveguide loop-type directional coupler is mainly used as power monitor of the waveguide circuits. It consists of a ... [more] | MW2013-199 pp.13-18 |
| LQE, OCS, OPE | 2013-10-24 09:35 |
Fukuoka | Reduction of Wavelength Dependence of Coupling Characteristics using Si/SiO2 Optical Waveguide Curved Directional Coupler Hisayasu Morino, Takeo Maruyama, Koichi Iiyama (Kanazawa Univ.) OCS2013-47 OPE2013-93 LQE2013-63 |
Directional couplers are widely used as one of the key component of optical integrated circuits. However, the coupling r... [more] | OCS2013-47 OPE2013-93 LQE2013-63 pp.1-4 |
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