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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MWP | 2016-11-14 15:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Compensation of Third-Order Inter Modulation Distortion of Electro-Optic Modulator by Using Frequency Chirp Modulation Kousuke Takase, Sachiko Maeda, Tadashi Kawai, Akira Enokihara (Univ. Hyogo), Yukako Takizawa (HITec), Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.)  MWP2016-51 |
A new method where the third-order intermodulation distortion (IMD3) is optically compensated by using the frequency-chi... [more] | MWP2016-51 pp.47-50 |
| ICD, MW | 2016-03-03 14:30 |
Hiroshima | Hiroshima University | Wideband 3-Way Wilkinson Power Dividers Using LC-Ladder Circuits Yosuke Okada, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2015-196 ICD2015-119 |
This paper describes wideband 3-way Wilkinson power dividers using LC-ladder circuits. The proposed dividers consist of ... [more] | MW2015-196 ICD2015-119 pp.129-134 |
| LQE, EST, OPE, EMT, PN, MWP, IEE-EMT, PEM [detail] | 2016-01-29 09:00 |
Hyogo | Frequency Chirp Modulation by Electro-optic Modulator Using Microwave 180-degree Hybrid Circuit and Evaluation of Optical Fiber Transmission Characteristic Ryota Nakamura, Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2015-86 EMT2015-137 OPE2015-199 LQE2015-186 EST2015-143 MWP2015-112 |
An electro-optic modulator integrated with rat-race circuit, which operated 180-degree hybrid was considered for frequen... [more] | PN2015-86 EMT2015-137 OPE2015-199 LQE2015-186 EST2015-143 MWP2015-112 pp.325-330 |
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| MW | 2015-12-18 16:10 |
Tokyo | Tokyo Univ. of Science | [Special Talk]
Report on European Microwave Week 2015 Tadashi Kawai (Univ. of Hyogo), Eigo Kuwata (Mitsubishi Electric), Chun-Ping Chen (Kanagawa Univ.), Tetsuya Ueda (Kyoto Inst. of Tech.), Kouji Shibata (Hachinohe Inst. of Tech.), Ryosuke Suga (Aoyama Gakuin Univ.), Naoki Shinohara (Kyoto Univ.), Masahiro Horibe (AIST) MW2015-158 |
[more] | MW2015-158 pp.139-145 |
| PEM (2nd) |
2015-11-27 - 2015-11-28 |
Kyoto | Doshisha Univ. | Microwave 180-degree Hybrid Formed on LiNbO3 Substrate for Frequency Chirp Modulation by Electro-optic Modulator Ryota Nakamura, Tadashi Kawai, Akira Enokihara (Univ. Hyogo), Tetsuya Kawanishi (Waseda Univ.) |
A microwave rat-race (RR) circuit, which operates as the 180-degreee hybrid, was designed with 2:1 power split ratio and... [more] | |
| EST, OPE, LQE, EMT, PN, MWP, IEE-EMT [detail] | 2015-01-29 13:00 |
Osaka | Evaluation of wavelength-chirp of Mach-Zehnder eectro-optic modulators and investigation of zero-chirp modulation Masashi Yamamoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) PN2014-43 OPE2014-168 LQE2014-155 EST2014-97 MWP2014-65 |
[more] | PN2014-43 OPE2014-168 LQE2014-155 EST2014-97 MWP2014-65 pp.107-112 |
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| MW, OPE, EMT, MWP, EST, IEE-EMT [detail] | 2014-07-17 11:15 |
Hokkaido | Muroran Inst. of Tech. | Design of Substrate Integrated Waveguide Multiple-Port Power Divider Using Cascade-Connected Cruciform Directional Couplers Koji Takahashi, Tadashi Kawai (Univ. of Hyogo), Mitsuyoshi Kishihara (Okayama Pre. Univ.), Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2014-56 OPE2014-25 EST2014-17 MWP2014-14 |
[more] | MW2014-56 OPE2014-25 EST2014-17 MWP2014-14 pp.17-21 |
| MW | 2014-05-22 09:30 |
Kyoto | Doshisha Univ. | A Circuit Construction of Parallel Ring-Lines Type Rat-Race Circuit with Very Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines Yousuke Daimon, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2014-25 |
[more] | MW2014-25 pp.7-12 |
| MWP | 2014-04-17 09:30 |
Hokkaido | Sapporo Convention Center | Behavior of the third-order Intermodulation distortion of Mach-Zehnder Electro-Optic Modulator on its operation conditions Tatsuya Hayakawa, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) MWP2014-1 |
Electro-optical modulator is capable of high speed and high quality modulation. Some distortion is induced, because of n... [more] | MWP2014-1 pp.1-5 |
| MWP | 2014-04-17 09:55 |
Hokkaido | Sapporo Convention Center | Analysis of time dependence of wavelength chirp in electro-optic modulator and consideration of small chirp measurement Akira Enokihara, Tadashi Kawai (Univ. of Hyogo), Tetsuya Kawanishi (NICT) MWP2014-2 |
Generation mechanisms of the wavelength chirp in Mach-Zehnder type electrooptic modulator are quite different from those... [more] | MWP2014-2 pp.7-12 |
| MW | 2014-03-04 11:50 |
Ehime | Ehime University | Design of Broadband Branch-Line Hybrid with Loose Coupling Utilizing Open-/Short-Circuited Coupled Transmission Lines Nobuo Nakajima, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2013-201 |
This paper describes broadband branch-line hybrids with loose coupling factors utilizing open-/short-circuited coupled t... [more] | MW2013-201 pp.23-27 |
| MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] | 2014-01-23 17:40 |
Kyoto | Doshisha University | Branch-Line-Couplers with Miniaturized Configuration Designed on LiNbO3 Substrate and their Application to Electro-optic SSB Modulators Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) PN2013-49 OPE2013-163 LQE2013-149 EST2013-98 MWP2013-69 |
The miniaturized branch-line coupler (BC) circuits were designed onto LiNbO3 substrates by two methods of using periodic... [more] | PN2013-49 OPE2013-163 LQE2013-149 EST2013-98 MWP2013-69 pp.81-86 |
| MW | 2013-12-19 11:00 |
Saitama | Saitama Univ. | Design of Parallel Ring-Lines Type Rat-Race Circuit with Loose Coupling Utilizing Short-Circuited Coupled lines Naoshi Yoshihashi, Tadashi Kawai, Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2013-154 |
This paper describes a rat-race hybrid with loose coupling using parallel ring-lines which compose of a quarter waveleng... [more] | MW2013-154 pp.19-22 |
| MW | 2013-06-28 13:45 |
Aichi | Nagoya Institute of Tech. | In-line Type of H-Plane Waveguide TE10-TEp0 Mode Transducer and Its Application Hiroaki Ikeuchi, Isao Ohta, Tadashi Kawai (Univ. of Hyogo), Mitsuyoshi Kishihara (Okayama Pref. Univ.) MW2013-46 |
This paper presents a design methodology of H-plane waveguide TE10-TEp0 mode transducers consisting of a single-mode wav... [more] | MW2013-46 pp.85-90 |
| MW | 2013-03-07 11:25 |
Hiroshima | Hiroshima Univ. | Investigation on Millimeter-wave Multi-Beam Antenna using Dielectric Lens Kazuyo Kawamura, Akira Enokihara, Tadashi Kawai (Univ. of Hyogo), Atsushi Kitauchi, Hiroyasu Matsui (DX Antenna) MW2012-173 |
[more] | MW2012-173 pp.75-80 |
| PN, EMT, LQE, OPE, MWP, EST, IEE-EMT [detail] | 2013-01-25 16:35 |
Osaka | Osaka Univ. (Suita) | Electro-optic SSB modulator integrated with coplanar waveguide type branch-line coupler Kazuyo Kawamura, Takeshi Nakao, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) PN2012-71 OPE2012-180 LQE2012-172 EST2012-107 MWP2012-89 |
Optical SSB modulation by the electro-optic modulator requires two modulation signals with π/2 phase difference, which a... [more] | PN2012-71 OPE2012-180 LQE2012-172 EST2012-107 MWP2012-89 pp.283-288 |
| MW | 2012-12-13 16:15 |
Yamanashi | Univ. of Yamanashi | Parallel-Ring-Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right/Left-Handed Transmission Lines Yuma Simitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2012-132 |
This paper treats a parallel-ring-type rat-race circuit for loose coupling utilizing composite right-/left-handed transm... [more] | MW2012-132 pp.31-36 |
| MW | 2012-10-18 13:25 |
Tochigi | Utsunomiya Univ. | A Broadband Branch-Line Coupler Using Short-Circuited Slotline Stubs on Ground Plane Nobuo Nakajima, Tadashi Kawai, Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2012-90 |
A branch-line hybrid plays an important role in microwave and millimeter-wave circuit system. However, its operation ban... [more] | MW2012-90 pp.53-57 |
| MW | 2012-10-18 14:05 |
Tochigi | Utsunomiya Univ. | H-Plane Waveguide Multiple Power Divider/Combiner of Chain Structure Hiroaki Ikeuchi, Isao Ohta, Kuniyuki Omonishi, Tadashi Kawai (Univ. of Hyogo), Mitsuyoshi Kishihara (Okayama Prefectural Univ.) MW2012-92 |
This paper presents a design methodology of an H-plane waveguide N-way power divider/combiner constructed by serially co... [more] | MW2012-92 pp.65-70 |
| MWP | 2012-04-06 16:35 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Investigation of Integration of Microwave Power Divider onto Electrooptic Modulator
-- Fabrication of Branch Line Coupler on LiNbO3 Substrate -- Akira Enokihara, Takeshi Nakao, Kazuyo Kawamura, Tadashi Kawai (Univ. of Hyogo), Tetsuya Kawanishi (NICT) MWP2012-7 |
Integration of the microwave power divider onto a single substrate of the electrooptic modulator was investigated for mi... [more] | MWP2012-7 pp.37-42 |
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