Kazuhiro UEHARA


FOREWORD
Kazuhiro UEHARA 
Publication:   
Publication Date: 2018/10/01
Vol. E101-B  No. 10  pp. 2069-2069
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

High-Capacity Wireless Access Networks Using 920MHz Band for Wide-Area IoT/M2M Services
Kazunori AKABANE Nobuaki MOCHIZUKI Shigeru TERUHI Mamoru KOBAYASHI Shuichi YOSHINO Masashi SHIMIZU Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/09/01
Vol. E99-B  No. 9  pp. 1920-1929
Type of Manuscript:  INVITED PAPER (Special Section on Integration Technologies of Ambient Intelligence and Sensor Networks)
Category: 
Keyword: 
IoT/M2M wireless access networks920 MHz Bandhigh-capacity protocolIoT/M2M services
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Concurrent Multi-Band Mixer with Independent and Linear Gain Control
Takana KAHO Yo YAMAGUCHI Hiroyuki SHIBA Tadao NAKAGAWA Kazuhiro UEHARA Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/07/01
Vol. E98-C  No. 7  pp. 659-668
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
concurrent multi-band mixerdual-bandtriple-bandSiGe BiCMOSflexible wireless system
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Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading
Ken HIRAGA Kazumitsu SAKAMOTO Maki ARAI Tomohiro SEKI Tadao NAKAGAWA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11  pp. 2491-2501
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
spatial division transmissionarray a ntennasparallel transmissionline-of-sight (LOS)two-ray ground reflection modelreflection coefficientpolarization
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A Study of Short-Range MIMO Transmission Utilizing Polarization Multiplexing for the Simplification of Decoding
Ken HIRAGA Kazumitsu SAKAMOTO Kentaro NISHIMORI Tomohiro SEKI Tadao NAKAGAWA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 459-468
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
short-rangeMIMOpolarization multiplexingXPDantennasdecoding
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Nonlinear Modeling and Analysis on Concurrent Amplification of Dual-Band Gaussian Signals
Ikuma ANDO GiaKhanh TRAN Kiyomichi ARAKI Takayuki YAMADA Takana KAHO Yo YAMAGUCHI Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/10/01
Vol. E96-C  No. 10  pp. 1254-1262
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Technologies and Applications for Microwave and Millimeter-Wave Systems)
Category: 
Keyword: 
nonlinear power amplifierspectral regrowthACPREVMOFDMcomplex Gaussian distributionFlexible Wireless SystemVolterra series expansiongeneral Wiener model
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Performance Evaluation of Short-Range MIMO Using a Method for Controlling Phase Difference between Each Propagation Channel
Kazumitsu SAKAMOTO Ken HIRAGA Tomohiro SEKI Tadao NAKAGAWA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/10/01
Vol. E96-B  No. 10  pp. 2513-2520
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012)
Category: Adaptive Array Antennas/MIMO
Keyword: 
short-range MIMOcontrolling phase differencepower ratiosub-array antennamillimeter-wavesimple decoding method
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FOREWORD
Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1035-1035
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

Signal Separation and Reconstruction Method for Simultaneously Received Multi-System Signals in Flexible Wireless System
Takayuki YAMADA Doohwan LEE Hiroyuki SHIBA Yo YAMAGUCHI Kazunori AKABANE Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1085-1092
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
Flexible Wireless Systemsignal separationsignal reconstructionshort-time Fourier transform
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Effectiveness of Short-Range MIMO Using Dual-Polarized Antenna
Ken HIRAGA Tomohiro SEKI Kentaro NISHIMORI Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 87-96
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)
Category: Radio Systems
Keyword: 
short-range MIMOdual-polarizationarray antennasparallel transmissionhigh-speed transmission
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Analyses of Antenna Displacement in Short-Range MIMO Transmission over Millimeter-Wave
Ken HIRAGA Tomohiro SEKI Kentaro NISHIMORI Kenjiro NISHIKAWA Ichihiko TOYODA Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/10/01
Vol. E94-B  No. 10  pp. 2891-2895
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
short-rangeMIMOmillimeter-waveantennasparallel transmission
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A Low-Noise, High-Gain Quasi-Millimeter-Wave Receiver MMIC with a Very High Degree of Integration Using 3D-MMIC Technology
Takana KAHO Yo YAMAGUCHI Kazuhiro UEHARA Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1548-1556
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Devices and Circuits
Keyword: 
receiverlow noise3D-MMICfixed wireless access (FWA) system
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Combined Nyquist and Compressed Sampling Method for Radio Wave Data Compression of a Heterogeneous Network System
Doohwan LEE Takayuki YAMADA Hiroyuki SHIBA Yo YAMAGUCHI Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3238-3247
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
compressed sensingcompressive samplingheterogeneous network systeml1-minimizationcognitive radio
 Summary | Full Text:PDF

FOREWORD
Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3217-3217
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

An Analysis of Multi-Layer Inductors for Miniaturizing of GaAs MMIC
Yo YAMAGUCHI Takana KAHO Motoharu SASAKI Kenjiro NISHIKAWA Tomohiro SEKI Tadao NAKAGAWA Kazuhiro UEHARA Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 1119-1125
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
multi-layer inductorstacked inductorthree-dimensional MMICGaAs
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A Very Low Spurious X-Band Frequency Quadrupler with Very High Integration Using 3D-MMIC Technology
Yo YAMAGUCHI Takana KAHO Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/11/01
Vol. E91-C  No. 11  pp. 1744-1750
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-wave Technologies)
Category: 
Keyword: 
quadruplerdoubler3D-MMIC2-band elimination filterlow spurious
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Performance Evaluation of an Autonomous Adaptive Base Station that Supports Multiple Wireless Network Systems
Kazunori AKABANE Hiroyuki SHIBA Munehiro MATSUI Kazuhiro UEHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 22-28
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Cognitive Network
Keyword: 
autonomous adaptive controlsoftware defined radiobase stationresource controlmulti-link communication
 Summary | Full Text:PDF

A Miniaturized In-Phase Power Divider with a DC Block Function
Hitoshi HAYASHI Tadao NAKAGAWA Kazuhiro UEHARA Yoshihiro TAKIGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/10/01
Vol. E90-C  No. 10  pp. 2022-2029
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
in-phasepowerdividerminiaturizedDC block
 Summary | Full Text:PDF

Miniaturized Broadband Lumped-Element In-Phase Power Dividers
Hitoshi HAYASHI Tadao NAKAGAWA Kazuhiro UEHARA Yoshihiro TAKIGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1222-1227
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
in-phasepowerdividerminiaturizedlumped-elementbroadband
 Summary | Full Text:PDF

An Active Terminal Circuit and Its Application to a Distributed Amplifier
Hitoshi HAYASHI Munenari KAWASHIMA Tadao NAKAGAWA Kazuhiro UEHARA Yoshihiro TAKIGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1203-1208
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
distributedamplifiercascode-connectedDarlington pair
 Summary | Full Text:PDF

Flat-Panel Imager Utilizing a-Si TFT Array Technology
Osamu TERANUMA Yoshihiro IZUMI Masayuki TAKAHASHI Tamotsu SATO Kazuhiro UEHARA Hisao OKADA Yasukuni YAMANE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/11/01
Vol. E87-C  No. 11  pp. 1948-1953
Type of Manuscript:  INVITED PAPER (Special Section on Electronic Displays)
Category: 
Keyword: 
TFTimagerflat-panelreal time imagingcolor imaging
 Summary | Full Text:PDF

Adaptability Check during Software Installation in Software Defined Radio
Yasuo SUZUKI Hiroshi HARADA Kazuhiro UEHARA Teruya FUJII Yukio YOKOYAMA Koji ODA Ryoichi HIDAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3401-3407
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)tallytechnical regulation conformity certification testtamperingimpersonationelectronic signature
 Summary | Full Text:PDF

Software Defined Radio Prototype for PHS and IEEE 802.11 Wireless LAN
Hiroyuki SHIBA Takashi SHONO Yushi SHIRATO Ichihiko TOYODA Kazuhiro UEHARA Masahiro UMEHIRA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2694-2702
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)PHSwireless LANmultiprocessor architectureover-the-air download
 Summary | Full Text:PDF

Proposal for System Diversity on Software Defined Radio
Takashi SHONO Kazuhiro UEHARA Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/09/01
Vol. E84-A  No. 9  pp. 2346-2358
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
software defined radioalgorithm diversitysystem diversityQoS
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Software Radio Base and Personal Station Prototypes
Yasuo SUZUKI Kazuhiro UEHARA Masashi NAKATSUGAWA Yushi SHIRATO Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/06/25
Vol. E83-B  No. 6  pp. 1261-1268
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio and Its Technologies)
Category: 
Keyword: 
softwaresoftware radiodigital signal processorpersonal handy phone system
 Summary | Full Text:PDF

A Planar Sector Antenna for Indoor High-Speed Wireless Communication Systems
Kazuhiro UEHARA Tomohiro SEKI Kenichi KAGOSHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/12/25
Vol. E79-B  No. 12  pp. 1773-1777
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-wave Short-range Application Systems Technology)
Category: 
Keyword: 
sector antennaphased arraymulti-beam antennamillimeter-wave communication
 Summary | Full Text:PDF

30-GHz Multibeam Antenna Using Bi-Layer Butler Matrix Circuits
Tomohiro SEKI Kazuhiro UEHARA Kenichi KAGOSHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/12/25
Vol. E79-B  No. 12  pp. 1778-1783
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-wave Short-range Application Systems Technology)
Category: 
Keyword: 
multibeam antennaButler matrixmillimeter-waveslot-coupled hybridbi-layer
 Summary | Full Text:PDF

FDTD Method Analysis of Mutual Coupling between Microstrip Antennas
Kazuhiro UEHARA Kenichi KAGOSHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/07/25
Vol. E76-B  No. 7  pp. 762-764
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1992 IEICE Fall Conference and the 1993 IEICE Spring Conference)
Category: 
Keyword: 
FDTD methodmicrostrip antennasmutual couplingarray antennas
 Summary | Full Text:PDF