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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 45  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2022-05-20
11:15
Kyoto Kyoto Univ.
(Primary: On-site, Secondary: Online)
A Design of Lumped-Element Unequal Power Divider with Two Matching Frequencies
Masatoshi Fukunaga, Ayumu Tsuchiya, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2022-19
The Wilkinson power divider, which distributes/combines microwave signals, is one of the key circuit components in a mic... [more] MW2022-19
pp.23-27
PN, MWP, EMT, PEM, IEE-EMT [detail] 2022-01-28
15:45
Online Online Mach-Zehnder optical modulator with tunable multimode interference coupler of Ti:LiNbO3 waveguides for modulation of high extinction ratio
Anna Hirai, Shotaro Yasumori, Yuichi Matsumoto (Univ of Hyogo.), Takanori Sato (Hokkaido Univ.), Tadashi Kawai, Akira Enokihara (Univ of Hyogo.), Shinya Nakajima, Atsushi Kanno, Naokatsu Yamamoto (NICT) PN2021-48 EMT2021-64 MWP2021-53
A Mach-Zehnder optical modulator (MZM) with multimode interference (MMI) couplers using Ti-diffused LiNbO3 was considere... [more] PN2021-48 EMT2021-64 MWP2021-53
pp.85-90
MW 2021-11-18
16:30
Kagoshima Kagoshima University
(Primary: On-site, Secondary: Online)
Design of Dual-Band Semi-Lumped Element Power Divider with Constant Absolute Bandwidth
Ayumu Tsuchiya, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2021-73
In recent years, the dramatic evolution of information and communication technology and the expansion of its fields of u... [more] MW2021-73
pp.35-39
WPT, MW 2021-04-16
13:55
Online Online Experimental Study of UHF/SHF Dual-Band Semi-Lumped-Element Power Divider
Ayumu Tsuchiya, Taiji Okuda, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) WPT2021-3 MW2021-3
The Wilkinson power divider is widely used as a circuit that divides microwave signals in the same phase, such as a powe... [more] WPT2021-3 MW2021-3
pp.11-15
EMT, MWP, PN, IEE-EMT [detail] 2021-01-21
13:25
Online Online Fabrication and Measurement of Optical Multi-mode Interference Devices Using Ti-diffused LiNbO3 Waveguides and Consideration on Voltage Control of Device Properties
Anna Hirai, Yuichi Matsumoto (Univ. of Hyogo), Takanori Sato (Hokkaido Univ.), Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Shinya Nakajima, Naokatsu Yamamoto (NICT) PN2020-34 EMT2020-52 MWP2020-35
Optical couplers based on Multi-mode interference (MMI) of Ti-diffused LiNbO3 (Ti:LN) waveguides were analyzed by the be... [more] PN2020-34 EMT2020-52 MWP2020-35
pp.28-31
MW 2019-11-15
12:50
Okinawa Minami Daido Villa. Tamokuteki Koryu Center Design of Compact Uniplanar Rat-Race Circuit with Broadband Characteristics at 2.45GHz
Ryosuke Nakai, Kensuke Nagano, Yuya Haoka, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2019-115
Rat-race circuits (RRCs) are used as important circuit elements that play combining/dividing of microwave signals. The R... [more] MW2019-115
pp.87-92
MW
(2nd)
2019-06-26
- 2019-06-28
Overseas RUS, Bangkok, Thailand Design of Substrate Integrated Waveguide Type Butler Matrix at 12.5GHz
Kohei Fukuda, Koki Denda, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo)
In this paper, we study -3dB and 0dB couplers of the H-plane waveguide circuits in order to apply these couplers to Subs... [more]
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-18
11:40
Osaka Osaka University Nakanoshima Center Dual-Parallel Electro-Optic Modulator Integrated with Microwave Hybrid Circuit for Compensation of Third-Order Inter Modulation Distortion
Yuta Kashiwagi, Daichi Furubayashi, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Yukako Takizawa (Hyogo Pref. Inst. Tech.), Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2018-59 EMT2018-93 OPE2018-168 LQE2018-178 EST2018-106 MWP2018-77
A new optical compensation method of the third-order intermodulation distortion (IMD3) was proposed, we considered to mi... [more] PN2018-59 EMT2018-93 OPE2018-168 LQE2018-178 EST2018-106 MWP2018-77
pp.161-165
MW 2018-12-14
09:45
Kanagawa Kanagawa Univ. Design of N-way power dividers using LC-ladder circuit
Kensuke Nagano, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2018-128
In this paper, we are conducting an evaluation of N-way power divider using LC-ladder circuits. The proposed circuit has... [more] MW2018-128
pp.83-86
MW 2018-12-14
10:10
Kanagawa Kanagawa Univ. Design of Broadband Branch-Line Coupler with Loose Coupling Utilizing Coupled-Transmission Lines at Ka-Band
Yuya Haoka, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2018-129
This paper describes broadband branch-line couplers (BLCs) with arbitrary power split ratios at Ka-band. The coupler has... [more] MW2018-129
pp.87-91
MW
(2nd)
2018-06-27
- 2018-06-29
Overseas KMITL, Bangkok, Thailand X-Band Broadband Branch-Line Coupler with Loose Coupling Utilizing Short-/Open-Circuited Coupled-Transmission Lines
Yuya Haoka, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo)
In this research, we describe broadband branch-line couplers with very loose coupling at X-band. The proposed branch-lin... [more]
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]
EMT, EST, LQE, MWP, OPE, PEM, PN, IEE-EMT [detail] 2018-01-26
09:55
Hyogo   Electro-optic modulator using resonator electrodes of parallel-coupled-three-line
Michio Ishida, Ryota Kunihiro, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Yoshiki Yanagisawa, Yutaka Suwabe (TME), Naokatsu Yamamoto (NICT) PN2017-80 EMT2017-117 OPE2017-158 LQE2017-140 EST2017-116 MWP2017-93
 [more] PN2017-80 EMT2017-117 OPE2017-158 LQE2017-140 EST2017-116 MWP2017-93
pp.247-250
MWP, OPE, EMT, MW, EST, IEE-EMT [detail] 2017-07-21
09:00
Hokkaido Obihiro Chamber of Commerce and Industry Optical frequency comb generation by electro-optic chirp modulator integrated with microwave power splitter circuit
Naoki Maeda, Ryota Nakamura, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.) EMT2017-27 MW2017-52 OPE2017-32 EST2017-29 MWP2017-29
The generation conditions of the frequency comb signals that are composed of relatively small number, seven or nine, of ... [more] EMT2017-27 MW2017-52 OPE2017-32 EST2017-29 MWP2017-29
pp.111-116
MW 2017-05-19
09:55
Osaka Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) Fabrication of LC-Ladder 3-Way Power Dividers at UHF Band
Aiki Tanaka, Yosuke Okada, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2017-14
 [more] MW2017-14
pp.37-41
MW 2016-12-15
15:10
Kanagawa National Defense Academy Design method of unequal Wilkinson power divider using LC-ladder circuits
Yosuke Okada, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2016-146
Authors have proposed the Wilkinson power divider using LC-ladder circuits for miniaturization of conventional power div... [more] MW2016-146
pp.79-82
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
MW 2015-12-17
16:15
Tokyo Tokyo Univ. of Science Design of Broadband Lumped-Element Wilkinson Power Divider Using LC-Ladder Circuits
Yosuke Okada, Kawai Tadashi, Akira Enokihara (Univ. of Hyogo) MW2015-144
 [more] MW2015-144
pp.65-68
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