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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 27  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
QIT
(2nd)
2022-12-08
14:00
Kanagawa Keio Univ.
(Primary: On-site, Secondary: Online)
[Poster Presentation] Quantum State Generation using DPQPSK Modulator for High Speed Quantum Key Distribution
Yuki Sugawara, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.)
In implementing a high-speed QKD system, distortions in the modulation signal degrade the performance of the QKD system.... [more]
OPE, OCS, LQE 2022-10-20
13:30
Ehime
(Primary: On-site, Secondary: Online)
Aggregation of BPSK Signals Using Coherent Interference for Modulation Format Conversion to 8QAM Signal
Taiga Ishida, Hiroki Kishikawa, Junichi Fujikata (Tokushima Univ.) OCS2022-18 OPE2022-64 LQE2022-27
Modulation format conversion is useful for connecting networks with different modulation schemes. In this study, we prop... [more] OCS2022-18 OPE2022-64 LQE2022-27
pp.5-9
EMCJ 2022-07-14
14:25
Tokyo
(Primary: On-site, Secondary: Online)
Comparative Study of Noise Spectrum of Different Phase Change Schemes in BPSK Modulators
Kazuaki Maruyama, Atsuhiro Nishikata (Tokyo Tech) EMCJ2022-30
We have proposed and studied full-duplex retroreflective communications using Van Atta array retroreflectors.
In the pr... [more]
EMCJ2022-30
pp.11-16
SRW, SeMI, CNR
(Joint)
2020-11-27
10:50
Online Online [Invited Lecture] Research and Development Activities of Active Integrated Antenna for Polarization and Beam Switching Functions
Maodudul Hasan, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) SRW2020-35
This invited lecture introduces Saga University’s research and development activities on the active integrated antennas ... [more] SRW2020-35
pp.44-49
SRW 2019-06-10
10:25
Kanagawa Anritsu Design of a Miniaturized Polarization Agile Self-Oscillating Ring-Slot Active Integrated Antenna for Short Range Wireless Communications
Maodudul Hasan, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) SRW2019-4
This paper presents a new design of miniaturized active integrated antenna (AIA) having oscillation and polarization swi... [more] SRW2019-4
pp.17-22
AP, RCS
(Joint)
2017-11-08
11:15
Fukuoka Fukuoka University Experimental Evaluation of a Gunn-Oscillator Integrated 4-Patch Active Array Antenna With Polarization Switching Function
Hiroki Ushiroda, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) AP2017-112
We have proposed a new spatial modulation system using polarizations, and several advanced planar antennas have been exa... [more] AP2017-112
pp.25-30
RCS, CCS, SR, SRW
(Joint)
2016-03-02
16:20
Tokyo Tokyo Institute of Technology BER Performance Degradation due to Hardware Implementation Errors in Ultra Multi-level SSB-DFTs-OFDM
Hirokazu Fusayasu, Shigeki Nihei, Masahiro Umehira (Ibaraki Univ.), Junichi Abe, Jun Mashino (NTT) RCS2015-347
We have proposed SSB-DFTs-OFDM using ultra multi-level BPSK modulation to further improve spectral efficiency. In the pr... [more] RCS2015-347
pp.85-90
AP 2014-01-22
13:25
Kagoshima Hozan Hall (Kagoshima Prefectural Culture Center) Prototype Evaluation of an Advanced Planar Antenna with Polarization Switching and Detection Functions for Space Modulation Systems
Satoshi Matsuyuki, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) AP2013-139
In this paper, a novel advanced planar antenna with polarization switching and detection functions proposed for space mo... [more] AP2013-139
pp.31-35
MW, ED 2013-01-17
16:25
Tokyo Kikai-Shinko-Kaikan Bldg. 120-GHz-band 20-Gb/s QPSK Transmitter and Receiver modules
Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Jun Takeuchi, Koichi Murata, Naoya Kukutsu (NTT) ED2012-116 MW2012-146
NTT laboratories are developing a 120-GHz-band wireless link using quadrature-phase-shift keying (QPSK). We have reporte... [more] ED2012-116 MW2012-146
pp.23-28
MWP, OPE, MW, EMT, EST, IEE-EMT [detail] 2012-07-26
13:15
Hokkaido Hokkaido Univ. Stabilization of 40 Gbit/s optical DQPSK demodulator
Masaki Nishioka, Takuya Chikamoto, Tatsuya Shimizu, Hiroyuki Toda (Doshisha Univ.), Koji Inafune, Masatoshi Kagawa, Hitoshi Murai (OKI) MW2012-41 OPE2012-34 EST2012-23 MWP2012-22
We demonstrate a stabilization of 40 Gbit/s optical DQPSK demodulator using a wavelength tunable CW laser. The BER of th... [more] MW2012-41 OPE2012-34 EST2012-23 MWP2012-22
pp.101-104
MWP 2012-04-06
13:35
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] High Speed LiNbO3 Optical Modulator
Masaharu Doi (FOC) MWP2012-2
It is described the structure of the modulator corresponding to various modulation formats applied to 40 Gbps and 100Gbp... [more] MWP2012-2
pp.7-11
EMT, PN, LQE, OPE, MWP, EST, IEE-EMT [detail] 2012-01-27
16:40
Osaka Osaka Univ. Convention Center Absorption Balancing of Semiconductor Mach-Zehnder Modulator
Keisuke Matsuda, Keita Mochizuki, Takashi Sugihara, Hiroshi Aruga (Mitsubishi Electric Corp.) PN2011-79 OPE2011-195 LQE2011-181 EST2011-129 MWP2011-97
Semiconductor Mach-Zehnder (MZ) Modulators generally use quantum-confined-Stark effect (QCSE) at the phase modulation wa... [more] PN2011-79 OPE2011-195 LQE2011-181 EST2011-129 MWP2011-97
pp.319-322
RCS, SAT
(Joint)
2011-08-26
10:45
Niigata Niigata Univ. High Efficient Power Amplification of M-ary Modulated Signal by Spatial Superposition
Masayoshi Tanaka (Nihon Univ.), Hiroyasu Madate (Kyosera) SAT2011-32
This paper presents a new spatial power combining technology suitable for superposed M-ary modulated communication syste... [more] SAT2011-32
pp.87-92
SANE, SAT
(Joint)
2011-02-25
10:15
Hyogo NICT Kobe Research Laboratories High Efficient Power Amplification of M-ary Modulated Signal -- Spatially Superposition --
Hiroyasu Madate, Masayoshi Tanaka (Nihon Univ.) SAT2010-85
This paper presents a new spatial power combining technology suitable for superposed M-ary modulated communication syste... [more] SAT2010-85
pp.55-60
SIP, RCS 2011-01-20
11:20
Kagoshima   RTL Design of Joint CFO and IQ-Imbalance Compensator for Narrow-Band Wireless System
Takuro Yoshida, Daisuke Nojima, Yuhei Nagao, Masayuki Kurosaki, Hiroshi Ochi (Kyusyu Inst. of Tech.) SIP2010-77 RCS2010-207
In direct conversion receiver, I/Q imbalance is caused by non orthogonality between in-phase component and quadrature-ph... [more] SIP2010-77 RCS2010-207
pp.49-54
SANE 2010-11-26
13:50
Kanagawa JAXA Sagamihara campus Simulation of Combined Frequency Estimation and Symbol Demodulation for GPS Reciever on Rocket
Ken Harima (Tokyo Univ.), Hirobumi Saito (JAXA) SANE2010-119
Due to carrier frequency tracking errors produced by the rocket high dynamics, a frequency estimator must be included in... [more] SANE2010-119
pp.13-18
OCS 2010-07-29
13:10
Shizuoka New Welcity Yugawara Optical-modulator designing with pre-equalization based on digital signal processing
Moriya Nakamura, Yukiyoshi Kamio, Tetsuya Miyazaki (NICT) OCS2010-25
BPSK, QPSK, and 8-PSK modulation/demodulation was experimentally demonstrated using only a single-electrode straight-lin... [more] OCS2010-25
pp.7-10
OPE, LQE 2010-06-25
17:15
Tokyo Kikai-Shinko-Kaikan Bldg. Examination about bias control method of parallel LiNbO3 optical modulators
Yuta Tsuchiya (Waseda Univ.), Takahide Sakamoto, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) OPE2010-21 LQE2010-23
We improved extinction ratio by putting a new electrode on a Y-branch structure at input side of a Mach-Zehnder interfer... [more] OPE2010-21 LQE2010-23
pp.31-35
ED 2009-11-29
16:20
Osaka Osaka Science & Technology Center 120-GHz-band BPSK Modulator and Demodulator for 10 Gbit/s Data Transmission
Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Koichi Murata, Naoya Kukutsu (NTT Corp.) ED2009-165
This paper presents a 120-GHz-band binary phase shift keying (BPSK) modulator and demodulator fabricated on microwave mo... [more] ED2009-165
pp.31-35
MW 2009-03-06
17:10
Tokyo NHK Science & Technical Research Lab. High-Speed BPSK Modulator and Demodulator for 60GHz Band by NRD-Guide
Yuki Kawahara (MMEx), Hirokazu Sawada, Tsukasa Yoneyama (Tohoku Institute of Tech.) MW2008-208
A high-speed BPSK modulator and demodulator have been constructed by using NRD-guide technology at 60GHz. The NRD-guide ... [more] MW2008-208
pp.105-110
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