論文 - 菅野 敦史
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Wireless Millimeter-Wave-Lightwave Signal Converter using Stacked Patch-Antennas Embedded with A Micrometer-Gap and Electro-Optic Crystal 査読あり
Hironori Aya, Toshiyuki Inoue, Hiroshi Murata, Yasuyuki Okamura, Yusuf Nur Wijayanto, Atsushi Kanno, Tetsuya Kawanishi
PROCEEDINGS OF 2016 INTERNATIONAL CONFERENCE ON RADAR, ANTENNA, MICROWAVE, ELECTRONICS, AND TELECOMMUNICATIONS (ICRAMET) 77 - 80 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We have proposed a new electro-optic signal converter which enables us to convert wireless millimeter-wave signals to Iightwave signals. This is based on a LiNbO3 guided-wave optical modulator combined with vertically-stacked planar patch antennas embedded with a narrow (similar to 5 mu m) gap. Utilizing the stacked structure, the antenna gain, antenna area, and electric field for optical modulation are increased, so that the signal conversion efficiency is increased by 3.65 dB at 60 GHz.
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High speed photoreceiver over 100 GHz and its application 査読あり
T. Umezawa, K. Kashima, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi
2016 IEEE PHOTONICS CONFERENCE (IPC) 562 - 563 2016年
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Wireless Millimeter-Wave-Lightwave Signal Converter using Stacked Patch-Antennas Embedded with A Micrometer-Gap and Electro-Optic Crystal 査読あり
Hironori Aya, Toshiyuki Inoue, Hiroshi Murata, Yasuyuki Okamura, Yusuf Nur Wijayanto, Atsushi Kanno, Tetsuya Kawanishi
PROCEEDINGS OF 2016 INTERNATIONAL CONFERENCE ON RADAR, ANTENNA, MICROWAVE, ELECTRONICS, AND TELECOMMUNICATIONS (ICRAMET) 77 - 80 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We have proposed a new electro-optic signal converter which enables us to convert wireless millimeter-wave signals to Iightwave signals. This is based on a LiNbO3 guided-wave optical modulator combined with vertically-stacked planar patch antennas embedded with a narrow (similar to 5 mu m) gap. Utilizing the stacked structure, the antenna gain, antenna area, and electric field for optical modulation are increased, so that the signal conversion efficiency is increased by 3.65 dB at 60 GHz.
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W-band active imaging by photonics-based synthesizer 査読あり
Atsushi Kanno, Norihiko Sekine, Akifumi Kasamatsu, Naokatsu Yamamoto
PASSIVE AND ACTIVE MILLIMETER-WAVE IMAGING XIX 9830 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING
We demonstrate a nondestructive electromagnetic-wave imaging system with a photonics-based W-band synthesizer, traveling-wave tube amplifier and focal-plane transistor array in real time manner. High-power amplifier with multi-watts output will enhance the quality of obtained images under transmission and reflection imaging configurations.
DOI： 10.1117/12.2223312
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Terahertz-Wave Signal Synthesizer for Fiber-Wireless Seamless Access Network 査読あり
Atsushi Kanno, Pham Tien Dat, Norihiko Sekine, Akifumi Kasamatsu, Naokatsu Yamamoto, Tetsuya Kawanishi
2016 IEEE Sixth International Conference on Communications and Electronics (ICCE) 403 - 407 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
A photonic terahertz synthesizer is configured and demonstrated by100-GH, 300-GHz and 600-GHz signal generation. An optical frequency shifter in an amplified optical fiber loop technique configures an optical frequency comb generator with a resultant optical bandwidth up to 2 THz. An observed phase noise characteristic by the photonic synthesizer is considerable for application to the complex modulation formats even in the terahertz bands.
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Seamless Access Networks Using Radio-over-Fiber Technology for High-Speed Trains 査読あり
Tetsuya Kawanishi, Atsushi Kanno, Pham Tien Dat, Naokatsu Yamamoto
2016 IEEE Sixth International Conference on Communications and Electronics (ICCE) 381 - 384 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
This paper reviews seamless networks based on radio-over-fiber (RoF) technology. We focus on train communication networks (TCNs) consisting of optical networks and many radio access units (RAUs). Waveform for radio communications can be effectively delivered to each RAU by RoF. The TCN can be controlled by train location information to reduce overhead due to hand-over in mobile communication systems.
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Propagation Effect of Broadband Frequency-Chirped THz Wave Pulse in Periodically Poled Lithium Niobate 査読あり
Junichi Hamazaki, Yoh Ogawa, Norihiko Sekine, Akifumi Kasamatsu, Atsushi Kanno, Naokatsu Yamamoto, Iwao Hosako
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
Broadband frequency-chirped multi-cycle terahertz wave (THz) pulses have been generated from periodically poled lithium niobates (PPLNs). Up-and down-chirped THz pulses with temporal frequency shifts from 1 to 1.7 THz and 2 to 1 THz, respectively, were measured. In the waveforms of the both chirped THz pulses, large fluctuation of THz electric field amplitude was observed. Since the fluctuation disturbs exact estimation of temporal frequency shift of chirped THz pulses, suppressing the fluctuation is desired for applications using chirped THz pulses. For this purpose, the origin of the fluctuation of chirped THz pulses have been investigated.
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Precise Measurement Techniques for Optical-to-electric Conversion Devices 査読あり
Tetsuya Kawanishi, Keizo Inagaki, Atsushi Kanno, Naokatsu Yamamoto
2016 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS) 3906 - 3906 2016年
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Photonics-based 1-THz signal generation and its evaluation on phase noise characteristics 査読あり
A. Kanno, N. Sekine, A. Kasamatsu, N. Yamamoto
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
1-THz continuous-wave signal is generated by an optical frequency comb generator utilized as a 41st-order multiplier. Phase noise characteristics of generated signal are evaluated by heterodyne detector and microwave electrical spectrum analyzer.
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Optical Pulse Response of 20 Layer-stacked QD-SOA Grown with the Strain Compensation Technique by Using an Optical Frequency Comb 査読あり
Atsushi Matsumoto, Kouichi Akahane, Takahide Sakamoto, Toshimasa Umezawa, Atsushi Kanno, Naokatsu Yamamoto
2016 COMPOUND SEMICONDUCTOR WEEK (CSW) INCLUDES 28TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE & RELATED MATERIALS (IPRM) & 43RD INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (ISCS) 2016年
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OFDM Millimeter-Wave Radar Experiment Combined with Radio over Fiber Technology 査読あり
T. Umezawa, K. Jitsuno, A. Kanno, K. Akahane, N. Yamamoto, T. Kawanishi
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We have demonstrated an orthogonal frequency division multiplexing (OFDM) radar experiment combined with millimeter-wave radio over fiber (RoF). In result, high flame rate and high space resolution of 30 cm in 5 m distance (theoretical space resolution of 1.52 cm) was successfully achieved.
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Millimeter-wave Radio-over-fiber System for High-speed Railway Communication 査読あり
A. Kanno, P. T. Dat, N. Yamamoto, T. Kawanishi
2016 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS) 3911 - 3915 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We propose an architecture of the radio-over-fiber systems for train communication networks. Prediction-based dynamic optical routing can track the train cars by train location information. High spectral-efficient millimeter-wave signal modulation and demodulation are also discussed with the modulation format and its configuration of the frequency conversions in the paper.
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Low-Latency Fiber-Millimeter-Wave System for Future Mobile Fronthauling 査読あり
Pham Tien Dat, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi
BROADBAND ACCESS COMMUNICATION TECHNOLOGIES X 9772 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING
A seamless combination of fiber and millimeter-wave (MMW) systems can be very attractive for future heterogeneous mobile networks such as 5G because of its flexibility and high bandwidth. Analog mobile signal transmission over seamless fiber-MMW systems is very promising to reduce the latency and the required band-width, and to simplify the systems. However, stable and high-performance seamless systems are indispensable to conserve the quality of the analog signal transmission. In this paper, we present several technologies to develop such seamless fiber-MMW systems. In the downlink direction, a high-performance system can be realized using a high-quality optical MMW signal generator and a self-homodyne MMW signal detector. In the uplink direction, a cascade of radio-on-radio and radio-over-fiber systems using a burst-mode optical amplifier can support bursty radio signal transmission. A full-duplex transmission with negligible interference effects can be realized using frequency multiplexing in the radio link and wavelength-division multiplexing in the optical link. A high-spectral efficiency MMW-over-fiber system using an intermediate frequency-over-fiber system and a high-quality remote delivery of a local oscillator signal is highly desirable to reduce the costs.
DOI： 10.1117/12.2212059
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Key Technologies for Millimeter-Wave Distributed RADAR System over A Radio Over Fiber Network 査読あり
Atsushi Kanno, Toshimasa Umezawa, Toshiaki Kuri, Naokatsu Yamamoto, Yusuf Nur Wijayanto, Tetsuya Kawanishi
PROCEEDINGS OF 2016 INTERNATIONAL CONFERENCE ON RADAR, ANTENNA, MICROWAVE, ELECTRONICS, AND TELECOMMUNICATIONS (ICRAMET) 1 - 6 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We discuss key device technologies for realization of an optical-fiber-network-connected distributed radar system in the millimeter-wave band using radio over fiber techniques. The radio over fiber technique is useful for precise signal generation and distribution over the fiber network. In the scenario, each millimeter-wave radar head is not necessary to be equipped with aprecision radar signal source; low cost and low energy consumption radar head will be realized. For connection to the optical network, advanced high-speed optical/electrical converters are developed for signal conversion from/to optical signals in 90-GHz band directly in a central office and each radar head. A signal-to-noise power ratio of generated 90-GHz optical signal was achieved larger than 30 dB: enough quality to use in the radar system. An optical switching technique is useful not only for routing the optical signal to the radar heads but also for filtering unnecessary optical components. These device technologies are applicable for distributed millimeter-wave radar systems.
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High-efficiency W-band hybrid integrated photoreceiver module using UTC-PD and pHEMT amplifier 査読あり
T. Umezawa, K. Katshima, A. Kanno, K. Akahane, A. Matsumoto, N. Yamamoto, T. Kawanishi
TERAHERTZ, RF, MILLIMETER, AND SUBMILLIMETER-WAVE TECHNOLOGY AND APPLICATIONS IX 9747 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING
A 100-GHz narrowband photoreceiver module integrated with a zero-bias operational uni-traveling-carrier photodiode (UTC-PD) and a GaAs-based pseudomorphic high-electron-mobility transistor (pHEMT) amplifier was fabricated and characterized. Both devices exhibited flat frequency response and outstanding overall performance. The UTC-PD showed a 3-dB bandwidth beyond 110 GHz while the pHEMT amplifier featured low power consumption and a gain of 24 dB over the 85-100 GHz range. A butterfly metal package equipped with a 1.0 mm (W) coaxial connector and a microstrip-coplanar waveguide conversion substrate was designed for low insertion loss and low return loss. The fabricated photoreceiver module demonstrated high conversion gain, a maximum output power of +9.5 dBm at 96 GHz, and DC-power consumption of 0.21 W.
DOI： 10.1117/12.2209735
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Multi-core based 94-GHz radio and power over fiber transmission using 100-GHz analog photoreceiver
T. Umezawa, A. Kanno, P. T. Dat, K. Akahane, Y. Awaji, N. Yamamoto, T. Kawanishi
European Conference on Optical Communication, ECOC 1235 - 1237 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Institute of Electrical and Electronics Engineers Inc.
We propose a multi-core-based radio and power over fiber transmission using a 100 GHz photoreceiver, and demonstrate 1 m photonic wireless transmission at 10 Gbps (OFDM, 16QAM, 3 GHz) through a photonic power supply via cores in a multi-core fiber.
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Optical amplitude modulator linearized by integration of optical interferometric waveguides
Yuya Yamaguchi, Atsushi Kanno, Tetsuya Kawanishi, Masayuki Izutsu, Hirochika Nakajima
European Conference on Optical Communication, ECOC 1055 - 1057 2016年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Institute of Electrical and Electronics Engineers Inc.
We propose an optical amplitude modulator with tailored transfer function by integration of Mach-Zehnder-interferometer-based waveguides. The fabricated modulator designed to enhance the linearity showed a unique transfer function in good agreement with the theoretical one.
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Bias-free high-baud-rate UTC-PD for high-density implementations in parallel photonics
T. Umezawa, A. Matsumoto, K. Akahane, A. Kanno, N. Yamamoto, T. Kawanishi
Asia Communications and Photonics Conference, ACPC 2015 2015年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Optical Society of America (OSA)
We discussed crosstalk issues on parallel photonics assuming high-density integration. RF crosstalk has become a more serious problem than optical crosstalk, and it is affected by the operating frequency (baud rate). A bias free UTC-PD was designed and fabricated. © 2015 OSA.
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Millimeter-wave wireless beam-steering using patch-Antennas with meandering-gaps on electro-optical modulator 査読あり
Y. N. Wijayanto, A. Kanno, T. Kawanishi, H. Murata, Y. Okamura
European Microwave Week 2015: "Freedom Through Microwaves", EuMW 2015 - Conference Proceedings; 2015 45th European Microwave Conference Proceedings, EuMC 1140 - 1143 2015年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Institute of Electrical and Electronics Engineers Inc.
A new scheme for millimeter-wave wireless beam-steering using NxN patch-Antennas with meandering-gaps on an electro-optic (EO) modulator is proposed for high-speed radio-over-fiber systems. The wireless receiving beam can be steered by controlling interaction between millimeter-wave and lightwave electric fields in EO modulation using meandering-gaps. Analysis and experimental demonstration of the proposed device for 40GHz millimeter-wave bands are reported. A 5×5 antenna array is designed for 0±30 degrees wireless steerable beams. 5 and 25 variations of wireless beam-steering can be obtained for 1-D in xz-or yz-planes and 2-D in xyz-space, respectively.
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Millimeter-wave wireless beam-steering using patch-antennas with meandering-gaps on electro-optical modulator 査読あり
Y. N. Wijayanto, A. Kanno, T. Kawanishi, H. Murata, Y. Okamura
European Microwave Week 2015: 289 - 292 2015年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Institute of Electrical and Electronics Engineers Inc.
A new scheme for millimeter-wave wireless beam-steering using NxN patch-antennas with meandering-gaps on an electro-optic (EO) modulator is proposed for high-speed radio-over-fiber systems. The wireless receiving beam can be steered by controlling interaction between millimeter-wave and lightwave electric fields in EO modulation using meandering-gaps. Analysis and experimental demonstration of the proposed device for 40GHz millimeter-wave bands are reported. A 5×5 antenna array is designed for ±30 degrees wireless steerable beams. 5 and 25 variations of wireless beam-steering can be obtained for 1-D in xz-or yz-planes and 2-D in xyz-space, respectively.
