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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
ICTSSL, CAS 2023-01-27
Tokyo TBD
(Primary: On-site, Secondary: Online)
Dual power supply based tunable BPF with tunability of center frequency and bandwidth using tunable LPF and tunable HPF
Wataru Taniuchi, Koji Wada (UEC) CAS2022-93 ICTSSL2022-57
This paper proposes a dual power supply based tunable bandpass filter (BPF) with tunability of center frequency and band... [more] CAS2022-93 ICTSSL2022-57
Ehime The Museum of Art, EHIME
(Primary: On-site, Secondary: Online)
Study of Tunable BPF for Software Defined Radio with High Tuning Ratio of Center Frequency
Akehito Shiotake, Satoshi Ono, Koji Wada (UEC) MW2022-69
Software-defined radio (SDR) technique is widely used as receivers in many wireless systems.
The Bandwidth of the SDR r... [more]
MW 2021-03-05
Online Online Design of Tunable Filtering Array Antenna with Constant Absolute Bandwidth
Takuya Sakemoto, Masataka Ohira, Zhewang Ma (Saitama Univ.), Akihiiro Yamada (Nippon Antenna) MW2020-91
In recent years, the demand for tunable antennas has been increasing with the rapid growing various wireless communicati... [more] MW2020-91
OPE, LQE 2020-11-20
Online Online Spectral linewidth reduction of hybrid tunable laser by loading optical negative feedback circuit
Tatsuki Komatsubara, Toshiaki Okachi (Waseda Univ.), Nobuhide Yokota, Hiroshi Yasaka (Tohoku Univ.), Tomohiro Kita (Waseda Univ.) OPE2020-71 LQE2020-51
Spectral linewidth of a hybrid tunable laser consisted from SOA and Si optical circuits is reduced by loading an optical... [more] OPE2020-71 LQE2020-51
ICTSSL, CAS 2020-01-31
Tokyo   Study on a tunable multiplexer composed of tunable second-order BPFs using BST varactor loaded asymmetric hairpin resonators featuring easy adjustable of coupling coefficients.
Haruka Ogikubo, Satoshi Ono, Koji Wada (UEC) CAS2019-89 ICTSSL2019-58
This report proposed an asymmetric hairpin resonator loaded with a BST varactor which is a variable capacitor made of ${... [more] CAS2019-89 ICTSSL2019-58
MW, ED 2019-01-18
Tokyo Hitachi, Central Research Lab. Design of Microstrip Tunable Filtering Antenna with Constant Absolute Bandwidth
Tomoyasu Soma, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2018-87 MW2018-154
A tunable antenna that can change its resonant frequency electronically is one of promising components for future wirele... [more] ED2018-87 MW2018-154
LQE, OPE, SIPH 2018-12-06
Tokyo Keio University Full C+L-Band, Mode Hop Free Wavelength Tunable LD with a Linewidth of Less than 8 kHz
Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yasunori Tomomatsu, Takashi Endo (Koshin Kogaku) OPE2018-109 LQE2018-119 SIPH2018-25
We present a full 90-nm C+L-band (1530-1620 nm) mode hop free wavelength tunable LD in which we developed a new waveleng... [more] OPE2018-109 LQE2018-119 SIPH2018-25
OPE 2017-12-07
Okinawa   [Poster Presentation] Etalon-filter-based mode hop detection for wavelength tunable lasers
Masataka Gohara, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OPE2017-103
At the multi-electrode tunable laser diodes, mode hops appear when we sweep the wavelength with tuning currents. Therefo... [more] OPE2017-103
R, EMD, CPM, LQE, OPE 2017-09-01
Aomori   A full C-band wavelength tunable laser diode with narrow linewidth and low intensity noise characteristics
Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yasunori Tomomatsu, Takashi Endo (Koshin Kogaku) R2017-36 EMD2017-30 CPM2017-51 OPE2017-60 LQE2017-33
We demonstrate a narrow-linewidth, low-intensity noise, widely wavelength-tunable LD for which we adopted a long externa... [more] R2017-36 EMD2017-30 CPM2017-51 OPE2017-60 LQE2017-33
MW 2017-05-19
Osaka Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) Ku-band Vector-Sum Phase Shifter Using LC-Type PPF With Adjustable Operating Frequency
Takanobu Fujiwara, Koji Tsutsumi, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2017-20
Recently many vector-sum phase shifters designed with cost-effective silicon process have been reported, featuring their... [more] MW2017-20
CAS, ICTSSL 2017-01-26
Tokyo Kikai-Shinko-Kaikan Bldg. Stepped Impedance Resonator Based Tunable Combline Bandpass Filter with Wide Tuning Range of Center Frequency by Single DC Power Supply
Rei Abe, Kyota Otsuka, Satoshi Ono, Koji Wada (UEC) CAS2016-88 ICTSSL2016-42
This paper proposes a tunable combline type of bandpass filter (BPF) using stepped impedance resonator(SIR) with wide tu... [more] CAS2016-88 ICTSSL2016-42
CAS, ICTSSL 2017-01-26
Tokyo Kikai-Shinko-Kaikan Bldg. Frequency tunable BPF using high frequency switch and varactor diode-loaded resonators with attenuation poles and varactor diode loaded m type admittance inverters
Soichi Tsuji, Satoshi Ono, Koji Wada (UEC) CAS2016-89 ICTSSL2016-43
In this study, a frequency controllable band pass filter (BPF) with wide variable range of the center frequency is compo... [more] CAS2016-89 ICTSSL2016-43
MW 2016-12-16
Kanagawa National Defense Academy Study of superconducting tunable dual-band bandpass filter with independently controllable center frequencies
Takahiro Unno, Naoto Sekiya (Yamanashi Univ.) MW2016-163
We have developed a tunable dual-band bandpass filter (DBPF) with independently controllable center frequencies by diele... [more] MW2016-163
OPE 2016-12-08
Okinawa   Wavelength characteristics of a Si3N4 waveguide resonator with distributed Bragg reflectors for optical tunable filters having ferro-electric liquid crystal
Sho Inamori, Kentaro Sakakibara, Masayuki Takeda (kanagawa Inst. of Tech.), Noritsugu Yamamoto (AIST), Katsumi Nakatsuhara (kanagawa Inst. of Tech.) OPE2016-108
Ferro-electric liquid crystal (FLC) materials have the high speed response time of sub-milliseconds. In addition, FLC ma... [more] OPE2016-108
MW 2016-11-18
Saga Saga Univ. A Compact Tunable Bandpass Filter Using a Triple-mode Resonater Consisting of Lumped Elements and Varactor Diodes
Kyota Otsuka, Satoshi Ono, Koji Wada (UEC) MW2016-127
This paper proposes the simplified design method of a triple-mode resonator consisting of lumped elements. The resonant ... [more] MW2016-127
OPE, MW, EMT, MWP, EST, IEE-EMT [detail] 2016-07-21
Hokkaido   EMT2016-17 MW2016-48 OPE2016-29 EST2016-18 MWP2016-19 In recent years, traffic demand for mobile communications continues to increase, which causes the necessity of developin... [more] EMT2016-17 MW2016-48 OPE2016-29 EST2016-18 MWP2016-19
SCE 2016-04-20
Tokyo   High Speed Tunable Superconducting Filter
Hiroaki Ikeuchi, Tamio Kawaguchi, Noritsugu Shiokawa, Junya Tanaka, Rie Katsuki, Hiroshi Takahashi, Hiroyuki Kayano (Toshiba) SCE2016-8
We propose a high speed tunable superconducting filter with a new dielectric drive mechanism. The bandpass filter is use... [more] SCE2016-8
OPE, OME 2015-11-26
Kagawa Sunport-hall Takamatsu Switching characteristics of a tunable wavelength filter using Si-AWG and FLC
Wataru Kanakubo, Daisuke Kimura, Kenta Tamura, Masayuki Takeda, Katsumi Nakatsuhara (KAIT) OME2015-68 OPE2015-134
We proposed and fabricated a tunable wavelength filter using an arrayed waveguide grating (AWG) featuring ferroelectric ... [more] OME2015-68 OPE2015-134
MW 2015-06-25
Kanagawa Institute of Industrial Promotion Kawasaki Study of Phase Shifter using Dielectric Driving Tunable Filter
Hiroaki Ikeuchi, Tamio Kawaguchi, Noritsugu Shiokawa, Junya Tanaka, Rie Katsuki, Hiroshi Takahashi, Hiroyuki Kayano (Toshiba) MW2015-38
We have report about phase shifter using dielectric driving tunable filter. In the passband of the bandpass filter, the ... [more] MW2015-38
LQE, OPE 2015-06-19
Tokyo   Wavelength selective devices using PLZT waveguides for optical communications
Hideaki Asakura (Keio Univ.), Keiichi Nashimoto (EpiPhotonics), Hiroyuki Tsuda (Keio Univ.) OPE2015-10 LQE2015-20
A high-speed wavelength selective device was designed and fabricated using (Pb, La)(Zr, Ti)O_{3} (PLZT), which has large... [more] OPE2015-10 LQE2015-20
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