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 networks, 920 MHz Band, high-capacity protocol, IoT/M2M services, 
 Summary | Full Text:PDF
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 mixer, dual-band, triple-band, SiGe BiCMOS, flexible wireless system, 
 Summary | Full Text:PDF
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 transmission, array a ntennas, parallel transmission, line-of-sight (LOS), two-ray ground reflection model, reflection coefficient, polarization, 
 Summary | Full Text:PDF
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-range, MIMO, polarization multiplexing, XPD, antennas, decoding, 
 Summary | Full Text:PDF
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 amplifier, spectral regrowth, ACPR, EVM, OFDM, complex Gaussian distribution, Flexible Wireless System, Volterra series expansion, general Wiener model, 
 Summary | Full Text:PDF
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 MIMO, controlling phase difference, power ratio, sub-array antenna, millimeter-wave, simple decoding method, 
 Summary | Full Text:PDF
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 System, signal separation, signal reconstruction, short-time Fourier transform, 
 Summary | Full Text:PDF
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 MIMO, dual-polarization, array antennas, parallel transmission, high-speed transmission, 
 Summary | Full Text:PDF
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-range, MIMO, millimeter-wave, antennas, parallel transmission, 
 Summary | Full Text:PDF
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: 
receiver, low noise, 3D-MMIC, fixed wireless access (FWA) system, 
 Summary | Full Text:PDF
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 sensing, compressive sampling, heterogeneous network system, l1-minimization, cognitive 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 inductor, stacked inductor, three-dimensional MMIC, GaAs, 
 Summary | Full Text:PDF
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: 
quadrupler, doubler, 3D-MMIC, 2-band elimination filter, low spurious, 
 Summary | Full Text:PDF
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 control, software defined radio, base station, resource control, multi-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-phase, power, divider, miniaturized, DC 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-phase, power, divider, miniaturized, lumped-element, broadband, 
 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: 
distributed, amplifier, cascode-connected, Darlington 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: 
TFT, imager, flat-panel, real time imaging, color 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), tally, technical regulation conformity certification test, tampering, impersonation, electronic 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), PHS, wireless LAN, multiprocessor architecture, over-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 radio, algorithm diversity, system diversity, QoS, 
 Summary | Full Text:PDF
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: 
software, software radio, digital signal processor, personal 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 antenna, phased array, multi-beam antenna, millimeter-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 antenna, Butler matrix, millimeter-wave, slot-coupled hybrid, bi-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 method, microstrip antennas, mutual coupling, array antennas, 
 Summary | Full Text:PDF