Faculty Information - Hirata Akihiko

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（Last updated : 2025-04-08 17:14:49）

Hirata Akihiko
Department of Information and Communication Systems Engineering, Faculty of Engineering

Graduate School of Engineering

Master's Program in Information and Communication Systems Engineering, Graduate School of Engineering

Professor

■ Office

Tsudanuma Campus, No.2 Building,15th floor room 011510

■ Academic background

1.		〔Doctorial Course〕 Department of Electrical and Electronic Engineering, Graduate School, Division of Engineering, The University of Tokyo, Completed, Doctor of Philosophy in Engineering
2.	1992/04～1994/03	〔Master Course〕 Department of Chemistry, Graduate School, Division of Science, The University of Tokyo, Completed,
3.	1987/04～1992/03	Faculty of Science, The University of Tokyo, Graduated,

■ Research activities

1.	2003/04～	The Institute of Electrical and Electronics Engineers, Inc.
2.	2001/06～	The Institute of Electronics, Information and Communication Engineers

■ Works

1.	Article	Evaluating Vegetation Attenuation Characteristics at the 300 GHz Band IEEE Open Journal of Antennas and Propagation pp.doi: 10.1109/OJAP.2025.3543518 (Collaboration) 2025/02
2.	Article	Modeling of Human Body Shadowing Loss at 300 GHz Based on Measurement of Path Loss and Direction of Arrival IEEE Transactions on Antennas and Propagation 73(2),pp.1162-1172 (Collaboration) 2024/12/27
3.	Article	Polarization Dependence on Delay Profile in a Conference Room at 150 and 300 GHz 2024 International Symposium on Antennas and Propagation (ISAP) pp.10.1109/ISAP62502.2024.10846152. (Collaboration) 2024/11/07
4.	Article	Evaluation of Power Delay Profiles in the Vicinity of Human Body at 300GHz Band 2024 International Symposium on Antennas and Propagation (ISAP) pp.doi: 10.1109/ISAP62502.2024.10846673 (Collaboration) 2024/11/07
5.	Article	Connection Ratio Improvement for 300-GHz-Band Wireless Links during Local Downpours via Link-Disconnection Prediction 2024 International Symposium on Antennas and Propagation (ISAP) pp.doi: 10.1109/ISAP62502.2024.10846679 (Collaboration) 2024/11/07
6.	Article	Propagation Path Analysis during Shadowing of a Human Body at 300 GHz 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) pp.2489-2490 (Single) 2024/07/17
7.	Article	Evaluation of interference between 300 GHz band fronthaul links using measured high gain antenna radiation patterns IEICE Transactions on Communications E108-B(1),pp.85-93 (Collaboration) 2024/06/28
8.	Article	10-Gbit/s Close Proximity Communication in 120 GHz Band Sheet LAN Using Dielectric Sheet as Transmission Medium 2024 IEEE/MTT-S International Microwave Symposium - IMS 2024 pp.22-25 (Collaboration) 2024/06/18
9.	Article	THz Communications and the Demonstration in the ThoR-Backhaul Link IEEE Transactions on Terahertz Science and Technology pp.10.1109/TTHZ.2024.3415480 (Collaboration) 2024/06/17
10.	Article	Coverage Analysis of Indoor 300-GHz-Band MIMO Systems 2024 4th URSI Atlantic Radio Science Meeting (AT-RASC) pp.1-3 (Collaboration) 2024/05/21
11.	Article	10-Gbit/s Data Transmission Using 120-GHz-Band Contactless Communication with SRR Integrated Glass Substrate IEICE Transactions on Electronics E107-C(8),pp.223-230 (Collaboration) 2024/02/08
12.	Article	DOA Measurement of 300-GHz-band Signal Propagation through Tree 2023 IEEE International Symposium On Antennas And Propagation (ISAP) pp.1-2 (Collaboration) 2023/11/01
13.	Article	Effect of Gap between Arm and Torso and Clothing on Human Body Shadowing at 300 GHz 2023 IEEE International Symposium On Antennas And Propagation (ISAP) pp.1-2 (Collaboration) 2023/11/01
14.	Article	Reflection Coefficient Measurement in a Real Room for 300 GHz Indoor Wireless Communication Systems 2023 IEEE International Symposium On Antennas And Propagation (ISAP) pp.1-2 (Collaboration) 2023/11/01
15.	Article	Relationship between Reflector Size and Reflection Coefficient for 300 GHz Indoor Wireless Communication Systems 2023 IEEE International Symposium On Antennas And Propagation (ISAP) pp.1-2 (Collaboration) 2023/11/01
16.	Article	Improvement of Line Availability of 300-GHz-band Wireless Fronthaul Links during Local Downpour by Switching Routing in Mesh Network 2023 IEEE International Symposium On Antennas And Propagation (ISAP) pp.1-2 (Collaboration) 2023/10/31
17.	Article	Small Pipe Inspection Robots with Wireless Communication Using Microwave Guided Modes Propagating Along a Pipe Wall 2023 IEEE International Conference on Systems, Man, and Cybernetics (SMC) pp.3571-3576 (Collaboration) 2023/10/01
18.	Article	Evaluation of transmission characteristics of 120-GHz-band close-proximity wireless links using split-ring-resonator absorber integrated planar slot antenna IEICE TRANS. ELECTRON E106-C(9) (Collaboration) 2023/09/01
19.	Article	Measurement of 300-GHz-band Radio Propagation Characteristics in the Vicinity of Human Body using Terahertz Hemispheric Scanner IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting pp.1221-1222 (Single) 2023/07/27
20.	Article	Investigation of Indoor Propagation of 150 GHz Band Wireless LAN Using 2-Branch MIMO 2023 5th International Conference on Computer Communication and the Internet (ICCCI) pp.37-41 (Collaboration) 2023/06/24
21.	Article	OAM Multiplexing of 5 GHz Band Microwave Signal Propagating Along PVC Pipe Walls for a Buried Pipe Inspection Robot 2023 IEEE/MTT-S International Microwave Symposium (IMS 2023) pp.486-489 (Single) 2023/06/14
22.	Article	Indoor and outdoor 300-GHz-band wireless propagation experiments for beyond 5G application 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.93-94 (Collaboration) 2022/08/30
23.	Book	THz Communications pp.155-160 (Collaboration) 2022
24.	Article	Evaluation of Availability of 300-GHz-Band Wireless Fronthaul Link during Torrential Rain 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.112-113 (Collaboration) 2022/08/30
25.	Article	Reflection and Shadowing Loss due to Human Body in 300-GHz-band Wireless Link 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.126-127 (Collaboration) 2022/08/30
26.	Article	120-GHz-band Close Proximity Wireless Communication Using Metamaterial Integrated Glass Substrate 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.87-88 (Collaboration) 2022/08/30
27.	Article	Evaluation of Attenuation by Tree in 300-GHz-band Wireless Communications 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.29-30 (Collaboration) 2022/08/29
28.	Article	Study on MIMO Communication using Microwave Guided-Modes Propagating along PVC Pipe Wall 2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM2022) pp.55-56 (Collaboration) 2022/08/29
29.	Article	Modelling of Terahertz Antenna and Propagation Characteristics for Beyond 5G Mobile Communication THE 4TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATION AND THE INTERNET pp.Key Note Speech II (Single) 2022/07/02
30.	Article	Photonics-Based Near-Field Measurement and Far-Field Characterization for 300-GHz Band Antenna Testing IEEE Open Journal of Antennas and Propagation vol. 3,pp.24-31 (Collaboration) 2021/12/07
31.	Article	Measurement of Far Field Radiation Pattern of 300GHz-band Cassegrain Antenna 2021 International Symposium on Antennas and Propagation (ISAP) pp.220068 (Collaboration) 2021/10/22
32.	Article	Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern IEICE Transaction on Electronics E104-C(10),pp.587-595 (Collaboration) 2021/10/01
33.	Article	Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern IEICE Transaction on Electronics E104-C(10),pp.587-595 (Collaboration) 2021/04/08
34.	Article	Control of 120-GHz-band Split Ring Resonator Filter by Coupling Lattice Pattern Substrate IEICE Transaction on Electronics E104-C(3),pp.102-111 (Collaboration) 2021/03/01
35.	Article	Automatic Planning of 300-GHz-Band Wireless Backhaul Link Deployment in Metropolitan Area 2020 International Symposium on Antennas and Propagation (ISAP2020) pp.3G3-7 (Collaboration) 2021/01/27
36.	Article	Complex Permittivity Evaluation of Building Materials at 200-500 GHz Using THz-TDS 2020 International Symposium on Antennas and Propagation (ISAP2020) pp.3G3-6 (Collaboration) 2021/01/27
37.	Article	Pass Bandwidth Extension of 120-GHz-Band SRR Filter by Coupling Lattice Pattern Substrate International Topical Meeting on Microwave Photonics pp.Th-P27 (Collaboration) 2020/11/26
38.	Article	Non-destructive Inspection of Concrete Surface Crack Using Near-Field Scattering pp.FR4C_2 (Collaboration) 2020/09/04
39.	Article	Towards Propagation and Channel Models for the Simulation and Planning of 300 GHz Backhaul/Fronthaul Links 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science pp.B03-01 (Collaboration) 2020/08
40.	Article	Improvement of the Near-Field Transmission by using a Substrate Layer in a Corporate-feed Waveguide Slot Array 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeti pp.MO-UB.1P.2 (Collaboration) 2020/07/06
41.	Article	On the Impact of the Results of WRC 2019 on THz Communications 2020 Third International Workshop on Mobile Terahertz Systems (IWMTS) pp.10.1109/IWMTS49292.2020.9166206 (Collaboration) 2020/07/01
42.	Article	Contrast Enhancement of 76.5 GHz-band Millimeter-Wave Images using Near-field Scattering for Non-Destructive Detection of Concrete Surface Cracks IEICE Transaction on Electronics E103-C(5),pp.216-224 (Collaboration) 2020/05
43.	Article	Near-field Measurement and Far-field Characterization of a J-band Antenna Based on an Electro-optic Sensing 2020 14th European Conference on Antennas and Propagation (EuCAP) pp.T06-M03-2 (Collaboration) 2021/03/16
44.	Article	Characterisation of Terahertz Antenna for beyond 5G Systems International Workshop on Photonics Applied to Electromagnetic Measurements pp.4-2 (Collaboration) 2019/11/19
45.	Article	Investigation of plasmon hybridization between slot-ring resonator absorber and lattice pattern substrate International Symposium on Antenna and Propagation WA1D-4 (Collaboration) 2019/10/30
46.	Article	Measurement of Reflection and Transmission Characteristics of Glasses at 300 GHz International Symposium on Antenna and Propagation TP2F-1 (Collaboration) 2019/10/29
47.	Article	Improvement of Detection in Concrete Surface Cracks Covered with Paper by Using Standing Wave of 77-GHz-Band Millimeter-Wave 2019 IEEE MTT-S International Microwave Symposium (IMS) pp.Tu3G-2 (Collaboration) 2019/06
48.	Article	Terahertz Absorber Technologies for Close-Proximity Wireless System pp.TH1-C1-4 (Collaboration) 2018/11
49.	Article	Absorber integrated planar slot array antenna for suppression of multiple reflection in 120-GHz-band close-proximity wireless system IEICE Transactions on Electronics E101-C(10),pp.791-800 (Collaboration) 2018/10
50.	Article	Non-destructive Crack Detection and Classification for Waterproof-coated Concrete Surfaces by Millimeter-wave Imaging European Radar Conference (EuRAD) 2018 pp.265-268 (Collaboration) 2018/09
51.	Article	Non-destructive Detection of Concrete Cracks Covered with Waterproof Coating by Millimeter-wave Imaging Progress In Electromagnetics Research Symposium (PIERS) 2018 pp.3P-14b-8 (Single) 2018/08
52.	Article	A Positioning Mechanism of a Robot for Automatically Imaging of Underground Buried Infrastructure-facilities pp.449-453 (Collaboration) 2018/05
53.	Article	Absorber integrated planar slot array antenna for a 120-GHz-band close-proximity wireless system the 2017 International Symposium on Antennas and Propagation (ISAP2017) pp.2.1173 (Collaboration) 2017/10
54.	Article	Present and Future of Wireless Communication Technology Using Terahertz Waves pp.705-713 (Collaboration) 2017/09
55.	Article	Method for systematically designing polarization optics to maximize sensitivity of electrooptic sensors Japanese Journal of Applied Physics 56(9s),pp.09NB01-1-09NB01-6 (Collaboration) 2017/07
56.	Article	Analysis and Experimental Study of Magnetic-Field Amplification by a Double Coil IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 64(4),pp.3216-3226 (Collaboration) 2017/04
57.	Article	Alignment Control System Using Beam-Tilting 1-D Waveguide-Slot Array Antennas for 120-GHz-Band Corporate-Feed High-Gain 2-D Arrays IEICE Transactions on Communications E100-B(1),pp.158-166 (Collaboration) 2017/01
58.	Article	Design of Polarization Optics for Electrooptic Sensors pp.Mo-F-01 (Collaboration) 2016/10
59.	Article	Ultrasonic Guided Wave Testing of Anchor Rods Embedded in Soil IEEE International Ultrasonics Symposium pp.5H-2 (Collaboration) 2016/09
60.	Article	120-GHz-band SHV-FPU for UHDTV Broadcasting Program pp.382-392 (Collaboration) 2016/08
61.	Article	Magnetic-Field Amplification by a Double Coil 2016 IEEE International Symposium on Antennas and Propagation/USNC-URSI National Radio Science meeti pp.1051 (Collaboration) 2016/06
62.	Article	Alignment Control of 120-GHz-Band 2-D Waveguide-Slot Arrays Using Beam-Tilting 1-D Array Antennas European Conference on Antenna and Propagation CS22a-1 (Collaboration) 2016/04
63.	Article	Ultrafast Terahertz Wireless Communications Technologies IEEE Transactions on Terahertz Science and Technologies Vol.5(No.6),pp.1128-1132 (Collaboration) 2015/11
64.	Article	300-GHz band 20-Gbps ASK transmitter module based on InP-HEMT MMICs IEEE Compound Semiconductor IC Symposium M2 (Collaboration) 2015/10
65.	Article	Experimental Demonstration of Metamaterial Flat Lens at F-band International conference on Infrared Millimeter, and Terahertz Waves M3E-5 (Collaboration) 2015/09
66.	Article	Stable CW THz Spectroscopy with PLC-LN Hybrid Phase Modulator International Conference on Infrared, Millimeter, and Terahertz Waves (IrMMW-THz 2015) pp.T3C-3 (Collaboration) 2015/08
67.	Article	Millimeter-wave system technologies for wireless communications,imaging and sensing IEICE Electronics Express Vol.12(No.13),pp.1-11 (Single) 2015/07
68.	Article	Broadband Dielectric Spectroscopy of Glucose Aqueous Solution: Analysis of the Hydration State and the Hydrogen Bond Network Journal of Chemical Physics 142,pp.234504-234504 (Collaboration) 2015/06
69.	Other	Trends in ICT Involving Life-assist Technologies to Address Social Challenges NTT Technical Review 13(1),pp.1-4 (Collaboration) 2015/01
70.	Article	120-GHz-band Wireless Communications Field Trials International conference on Infrared Millimeter, and Terahertz Waves R4/A-38-2 (Collaboration) 2014/09
71.	Article	120-GHz-band Amplifier Module with Hermetic Sealing Structure for 10-Gbit/s Wireless syetem IEICE TRANS. ELECTRON Vol.E97-C(No.6),pp.583-591 (Collaboration) 2014/06
72.	Article	Compact and stable THz vector spectroscopy using silicon photonics technology Optic Express 22(6),pp.7178-7185 (Collaboration) 2014/03
73.	Article	64×64-Element and 32×32-Element Slot Array Antennas Using Double-Layer Hollow-Waveguide Corporated-Feed in the 120 GHz Band IEEE Transactions on Antennas and Propagation Vol.62(No.3),pp.1507-1512 (Collaboration) 2014/03
74.	Article	A Finline Orthomode Transducer for 120-GHz-band Wireless Links IEICE TRANS. ELECTRON Vol.E97-C(No.2),pp.111-119 (Collaboration) 2014/02
75.	Article	10-Gbit/s close-proximity wireless system meeting the regulation for extremely low-power radio stations IEICE Electronics Express Vol.11(No.3),pp.1-7 (Collaboration) 2014/02
76.	Article	10-Gbit/s Bidirectional and 20-Gbit/s Unidirectional 2-ch Wireless Data Transmission System Using 120-GHz-Band Finline Orthomode Transducers IEICE TRANS. ELECTRON Vol.E97-C(No.2),pp.101-110 (Collaboration) 2014/02
77.	Article	CW-THz vector spectroscopy and imaging system based on 1.55-µm fiber-optics Optic Express 22(2),pp.1735-1741 (Collaboration) 2014/01
78.	Article	4×4-Element Corporate-Feed Waveguide Slot Array Antenna With Cavities for the 120 GHz-Band IEEE Transactions on Antennas and Propagation Vol.61(No.12),pp.5968-5975 (Collaboration) 2013/12
79.	Article	120-GHz-Band Fully Integrated Wireless Link Using QSPK for Realtime 10-Gbit/s Transmission IEEE Transactions on Microwave Theory and Techniques Vol.61(No.12),pp.4745-4753 (Collaboration) 2013/12
80.	Article	43 dBi gain, 60% efficiency and 10% bandwidth hollow-waveguide slot array antenna in the 120 GHz band 2013 Asia-Pacific Microwave Conference (APMC 2013) pp.307-309 (Collaboration) 2013/12
81.	Article	Evaluation of Interference between Parallel 120-GHz-Band Wireless Link Systems with High-Gain Cassegrain Antennas IEICE TRANS. ELECTRON Vol.E96-C(No.10),pp.1294-1300 (Collaboration) 2013/10
82.	Article	10-Gbit/s dual channel transmission of 120-GHz-band wireless link using planar slot array antennas 2013 European Microwave Conference pp.744-747 (Collaboration) 2013/10
83.	Article	Design and Measurement of the Plate Laminated Waveguide Slot Array Antenna and Its Feasibility for Wireless Link System in the 120 GHz Band IEICE TRANS. Commun. E96-B(No.8),pp.2102-2011 (Collaboration) 2013/08
84.	Article	4x4-element Corporate-feed Plate-laminated Waveguide Slot Array Antenna with Cavities for the 120 GHz-band Proc. of IEEE AP-S International Symposium pp.230-231 (Collaboration) 2013/07
85.	Article	Wideband Waveguide Slot Array Antennas with Corporate-feed in 120GHz and 350GHz Bands 2013 International Symposium on Electromagnetic Theory EMTS 2013 pp.866-867 (Collaboration) 2013/05
86.	Article	Wideband Waveguide Slot Array Antennas with Corporate-feed in 120GHz and 350GHz Band Proceedings of the International Symposium on Electromagnetic Theory pp.866-867 (Collaboration) 2013/05
87.	Article	Broadband InP MMICs for 120 GHz Wireless Data Communications 2013 IEEE Radio and Wireless Symposium (RWS) pp.49-51 (Collaboration) 2013/01
88.	Article	Supporting Fast and Clear Video IEEE Microwave Magazine Vol.13(No.6),pp.54-64 (Collaboration) 2012/09
89.	Article	120-GHz-Band Wireless Link Technologies for Outdoor 10-Gbit/s Data Transmission IEEE Transactions on Microwave Theory and Techniques Vol.60(No.3),pp.881-895 (Collaboration) 2012/03
90.	Article	10-Gbit/s BPSK Modulator and Demodulator for a120-GHz-band Wireless Link IEEE Transactions on Microwave Theory and Techniques Vol.59(No.5),pp.1361-1368 (Collaboration) 2011/05
91.	Article	10-Gbit/s Quadrature Phase-Shift-Keying Modulator and Demodulator for 120-GHz-Band Wireless Links IEEE Transactions on Microwave Theory and Techniques 58(12),pp.4072-4078 (Collaboration) 2010/12
92.	Article	Effect of Rain Attenuation for a 10-Gb/s 120-GHz-band Millimeter-Wave Wireless Link IEEE Transactions on Microwave Theory and Techniques 57(12),pp.3099-3105 (Collaboration) 2009/12
93.	Article	A 125-GHz 140-mW InGaAs/InP composite-channel HEMT MMIC power amplifier module IEICE Electronic Express 6(24),pp.1764-1768 (Collaboration) 2009/12
94.	Article	8 Gbit/s wireless data transmission at 250 GHz Electronics Letters 45(22),pp.1122-1124 (Collaboration) 2009/10
95.	Article	10-Gbit/s Wireless Link Using InP HEMT MMIC for Generating 120-GHz-band Millimeter-wave IEEE Transactions on Microwave Theory and Techniques 57(5),pp.1102-1109 (Collaboration) 2009/05
96.	Article	MM-wave long-range wireless systems IEEE Microwave Magazine 10(2),pp.68-76 (Collaboration) 2009/04
97.	Article	Transmission Characteristics of 120-GHz-band Wireless Link Using Radio-on-Fiber Technologies IEEE Journal of Lightwave Technologies 26(15),pp.2338-2344 (Collaboration) 2008/08
98.	Article	10-Gbit/s wireless communications technology using sub-terahertz waves Proceedings of the SPIE 67(72),pp.1-11 (Collaboration) 2007/09
99.	Article	120-GHz-Band Millimeter-Wave Photonic Wireless Link for 10-Gbit/s Data Transmission IEEE Transactions on Microwave Theory and Techniques 54(5),pp.1937-1944 (Collaboration) 2006/05
100.	Article	10-Gb/s Millimeter-Wave Signal Generation using Photodiode Bias Modulation IEEE Journal of Lightwave Technology 24(4),pp.1725-1731 (Collaboration) 2006/04
101.	Article	Over-10-dBm output uni-traveling-carrier photodiode module integrating a power amplifier for wireless transmissions in the 125-GHz band IEICE Electronic Express 2(12),pp.446-450 (Collaboration) 2005/08
102.	Article	Low-phase noise photonic millimeter-wave generator using an AWG integrated with a 3-dB combiner IEICE Transactions on Electronics E88-C(7),pp.1458-1464 (Collaboration) 2005/07
103.	Article	Pre-amplifier integrated uni-travelling-carrier photodiode module for operation in 120 GHz band Electronics Letters 41(6),pp.360-362 (Collaboration) 2005/03
104.	Article	Photonic millimetre-wave generator using intensity and phase modulators for 10 Gbit/s wireless link Electronics Letters 41(6),pp.355-356 (Collaboration) 2005/03
105.	Article	High-directivity photonic emitter using photodiode module integrated with HEMT amplifier for 10-Gbit/s wireless link IEEE Transactions on Microwave Theory and Techniques 14(3),pp.290-297 (Collaboration) 2004/08
106.	Article	Characterization of millimeter-wave antenna using photonic measurement techniques International Journal of RF and Microwave Computer-Aided Engineering 14(3),pp.290-297 (Collaboration) 2004/05
107.	Article	Photonic Generation of Millimeter Waves and Its Applications IEEE LEOS Newsletter 17(5),pp.20-32 (Collaboration) 2003/10
108.	Article	120-GHz wireless link using photonic techniques for generation, modulation, and emission of millimeter-wave signals IEEE Journal of Lightwave Technology 21(10),pp.2145-2153 (Collaboration) 2003/10
109.	Article	The first radioastronomical observation with photonic local oscillator Publication of the Astronomical Society of Japan 55(4),pp.L53-L56 (Collaboration) 2003/08
110.	Article	A broadband 120-GHz Schottky-diode receiver for 10-Gbit/s wireless links IEICE Transactions on Electronics E86-C(8),pp.1501-1505 (Collaboration) 2003/08
111.	Article	Low-cost millimeter-wave photonic techniques for gigabit/s wireless link IEICE Transactions on Electronics E86-C(7),pp.1123-1128 (Collaboration) 2003/07
112.	Article	W-band waveguide photomixer using a uni-traveling-carrier photodiode with 2-mW output IEEE Transactions on Microwave Theory and Techniques 51(5),pp.1455-1459 (Collaboration) 2003/05
113.	Article	Ultra-low noise photonic local oscillator at 100 GHz Japanese Journal of Applied Physics, Part 2 (Letters 42(6B),pp.L704-L705 (Collaboration) 2003/05
114.	Article	High-power photonic millimetre wave generation at 100 GHz using matching-circuit-integrated uni-travelling-carrier photodiodes IEE Proceedings-Optoelectronics 150(2),pp.138-142 (Collaboration) 2003/04
115.	Article	Photonic millimetre-wave emission at 300 GHz using an antenna-integrated uni-travelling-carrier photodiode Electronics Letters 38(17),pp.989-990 (Collaboration) 2002/08
116.	Article	Output power measurement of photonic millimetre-wave and sub-millimetre-wave emitter at 100-800 GHz Electronics Letters 38(15),pp.798-800 (Collaboration) 2002/07
117.	Article	A 120-GHz microstrip antenna monolithically integrated with a photodiode on Si Japanese Journal of Applied Physics, Part 1 41(3A),pp.1390-1394 (Collaboration) 2002/07
118.	Article	3.0 Gbit/s wireless links using 120-GHz millimeter-wave photonic techniques IEICE Transactions on Electronics E-85-C(7),pp.1516-1522 (Collaboration) 2002/07
119.	Article	Design and characterization of a 120-GHz millimeter-wave antenna for integrated photonic transmitters IEEE Transactions on Microwave Theory and Techniques 49(11),pp.2157-2162 (Collaboration) 2001/11
120.	Article	A 120-GHz millimeter-wave antenna for integrated photonic transmitter Electronics Letters 37(24),pp.1460-1461 (Collaboration) 2001/11
121.	Article	1.55-μm photonic systems for microwave and millimeter-wave measurement IEEE Transactions on Microwave Theory and Techniques 49(10),pp.1831-1839 (Collaboration) 2001/10
122.	Article	Characterisation of uni-travelling-carrier photodiode monolithically integrated with matching circuit Electronics Letters 37(20),pp.1246-1247 (Collaboration) 2001/09
123.	Article	11 dBm photonic millimetre-wave generation at 100 GHz using uni-travelling-carrier photodiodes Electronics Letters 37(20),pp.1225-1226 (Collaboration) 2001/09
124.	Article	Monolithically integrated Yagi-Uda antenna for photonic emitter operating at 120 GHz Electronics Letters 37(18),pp.1107-1108 (Collaboration) 2001/08
125.	Article	Effect of thinning a WSiN/WSix barrier layer on its barrier capability Journal of Vacuum Science & Technology B 19(3),pp.788-793 (Collaboration) 2001/05
126.	Article	Microfabrication technology for high-speed Si-based systems Proceedings of the SPIE 4320,pp.43-52 (Collaboration) 2000/11
127.	Article	A electrostatic micromechanical switch for logic operation in multichip modules on Si Sensors and Actuators A (Physical) A80(2),pp.119-125 (Collaboration) 2000/03
128.	Article	Copper Damascene interconnection with Tungsten Silicon Nitride Diffusion Barrier Formed by Electron Cyclotron Resonance Plasma Nitridation Japanese Journal of Applied Physics 38(1),pp.2355-2359 (Collaboration) 1999/01
129.	Article	Diffusion Barrier Mechanism of Extremely Thin Tungsten Silicon Nitride formed by ECR Plasma Nitridation Japanese Journal of Applied Physics 37(1),pp.1251-1225 (Collaboration) 1998/03
130.	Article	Electrical characteristics of a WSix contact electrode with a WSixN diffusion barrier formed by using electron cyclotron resonance plasma nitridation Journal of the Electrochemical Society 144(11),pp.3993-3998 (Collaboration) 1997/11
131.	Article	A WSixN diffusion barrier formed with electron cyclotron resonance nitrogen plasma Journal of the Electrochemical Society 143(11),pp.3747-3751 (Collaboration) 1996/11
132.	Article	Strontium and SrO epitaxy on hydrogen-terminated Si(111) Applied Physics Letters 65,pp.3182-3184 (Collaboration) 1994/12
133.	Article	Electronic structure of a SrO-terminated SrTiO3(100) surface Surface Science 319,pp.267-271 (Collaboration) 1994/11
134.	Article	Characterization of surface defects formation in strontium titanate(100) Surface Science 310,pp.89-94 (Collaboration) 1994/05
135.	Article	20-Gbit/s unidirectional wireless system using polarization multiplexing for 12-ch HDTV signal transmission 2012 Asia Pacific Microwave Conference (APMC 2012) pp.142-144 (Collaboration) 2012/12
136.	Article	120-GHz-band 20-Gbit/s Transmitter and Receiver MMICs using quadrature phase shift keying Proceedings of the 7th European Microwave Integrated Circuits Conference pp.313-316 (Collaboration) 2012/09
137.	Article	Technology and Standardization Trends for Upper-Millimeter-Wave Wireless Links Thailand-Japan MicroWave 2012 pp.TH4-2 (Collaboration) 2012/08
138.	Article	Rain attenuation fade-slope characteristics of 120-GHz-band wireless links IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science M 314.1 (Collaboration) 2012/07
139.	Article	Photonic and Electronic Technologies for 10-Gbit/s Outdoor Data Transmission Using 120-GHz-Band Wireless Link Asia-Pacific Microwave Photonics Conference (APMP) 2012 pp.ThB-2 (Collaboration) 2012/04
140.	Article	Design and Measurement of Plate Laminated Waveguide Slot Array Antennas in Millimeter and Sub-millimeter Wave Regions Asia-Pacific Microwave Photonics Conference (APMP) 2012 pp.WD-4 (Collaboration) 2012/04
141.	Article	120-GHz-band antenna technologies for over-10-Gbps wireless data transmission 2012 6th European Conference on Antennas and Propagation (EuCAP) pp.2564-2568 (Collaboration) 2012/04
142.	Article	10-Gbit/s Bi-directional wireless data transmission system using 120-GHz-band ortho-mode transducers 2012 IEEE Radio and Wireless Symposium (RWS) pp.63-66 (Collaboration) 2012/01
143.	Article	Space division multiplexing of 120-GHz-band wireless links using high-gain antennas European Microwave Conference (EuMC) pp.63-66 (Collaboration) 2011/10
144.	Article	Hermetic Sealing technique for F-band waveguides and packages pp.269-272 (Collaboration) 2011/10
145.	Article	Millimeter-wave/terahertz circuits and transceivers for broadband wireless systems IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS 2011) (Collaboration) 2011/08
146.	Article	10-Gbit/s bi-directional and 20-Gbit/s uni-directional data transmission over a 120-GHz-band wireless link using a finline ortho-mode transducer 2010 Asia Pacific Microwave Conference pp.195-198 (Collaboration) 2010/12
147.	Article	Continuous-wave terahertz spectroscopic imaging at over 1 THz for pharmaceutical applications International Conference on Infrared Millimeter and Terahertz Waves (IRMMW-THz) pp.Tu-D1.3 (Collaboration) 2010/09
148.	Article	5.8-km 10-Gbps data transmission over a 120-GHz-band wireless link pp.207. 1 (Collaboration) 2010/09
149.	Article	Toward practical applications over 100 GHz MTT-S International Microwave Symposium (Collaboration) 2010/06
150.	Article	10-Gbit/s QPSK modulator and demodulator for a 120-GHz-band wireless link IEEE MTT-S International Microwave Symposium pp.632-635 (Collaboration) 2010/06
151.	Article	10-Gbps Forward Error Correction System for 120-GHz-band Wireless Transmission pp.472-475 (Collaboration) 2010/01
152.	Article	120-GHz-band Wireless Link Antenna Technologies for Polarization Multiplexing European Conference on Antenna and Propagation C10 60GHz.6 (Collaboration) 2015/04
153.	Article	Design and Fabrication of a Dual-polarization Corporate-feed Waveguide 32X32-slot Array Antenna for 120 GHz Band International Symposium on Antennas and propagation pp.WE1D-03 (Collaboration) 2014/12
154.	Article	250-300 GHz Waveguide Module with Ridge-Coupler and InP-HEMTIC Proceedings of Asia-Pacific Microwave Conference 2014 pp.1079-1081 (Collaboration) 2014/12
155.	Other	10-Gbit/s Phase-shift Keying Modulator and Demodulator MMICs for 120-GHz-band Wireless Lin NTT Technical Review 10(5),pp.1-4 (Collaboration) 2012/05
156.	Other	Compact, low-power, 120-GHz-band wireless link for 10-Gbit/s data transmission TT Technical Review 7(3),pp.58-63 (Collaboration) 2009/03
157.	Other	Transmission Trial of Television Broadcast Materials Using 120-GHz-band Wireless Link NTT Technical Review 7(3),pp.64-70 (Collaboration) 2009/03
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