Takashi SHIMIZU


Highly Reliable Radio Access Scheme by Duplicate Transmissions via Multiple Frequency Channels and Suppressed Useless Transmission under Interference from Other Systems
Hideya SO Takafumi FUJITA Kento YOSHIZAWA Maiko NAYA Takashi SHIMIZU 
Publication:   
Publication Date: 2021/06/01
Vol. E104-B  No. 6  pp. 696-704
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
Internet of things (IoT)highly reliable wireless communicationduplicated transmissionmultiple frequency channelsinterference from the other systemsoccupation time ratio
 Summary | Full Text:PDF

Evaluation Technique for Complex Permittivity of Mid-Loss Underfill Materials by a Cut-Off Circular Waveguide Method in Millimeter Wave Bands
Takashi SHIMIZU Yoshinori KOGAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/10/01
Vol. E97-C  No. 10  pp. 972-975
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
complex permittivitydielectricunderfill materialcut-off circular waveguide methodmillimeter wave
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NRD Guide Excited Millimeter Wave Narrow Bandpass Filter Using Sapphire Disk Resonators
Takashi SHIMIZU Yoshinori KOGAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/07/01
Vol. E95-C  No. 7  pp. 1226-1230
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
bandpass filterNRD guideSapphire disk resonatormillimeter wave
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Development of a 100 GHz Grooved Circular Empty Cavity for Complex Permittivity Measurements in W Band
Takashi SHIMIZU Yuki KAWAHARA Seizo AKASAKA Yoshinori KOGAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1650-1656
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Measurement Techniques
Keyword: 
cavity resonatorsmillimeter wave measurementsdielectric measurementscut-off circular waveguide method
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Spectral Efficiency of Fundamental Cooperative Relaying in Interference-Limited Environments
Koji YAMAMOTO Hirofumi MARUYAMA Takashi SHIMIZU Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/08/01
Vol. E91-B  No. 8  pp. 2674-2682
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
cooperative relayingmultihoparea spectral efficiencybandwidth efficiency
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NRD-Guide Passive Components and Devices for Millimeter Wave Wireless Applications
Tsukasa YONEYAMA Hirokazu SAWADA Takashi SHIMIZU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/12/01
Vol. E90-C  No. 12  pp. 2170-2177
Type of Manuscript:  INVITED PAPER (Special Section on Recent Technologies for Microwave and Millimeter-wave Passive Devices)
Category: 
Keyword: 
NRD-guidemillimeter wavespassive componentsgigabit wirelesstransceiver
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Wideband NRD Guide and Rectangular Waveguide H-Plane Transition at 60 GHz Band
Takashi SHIMIZU Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/12/01
Vol. E90-C  No. 12  pp. 2263-2265
Type of Manuscript:  Special Section LETTER (Special Section on Recent Technologies for Microwave and Millimeter-wave Passive Devices)
Category: 
Keyword: 
transitionwidebandNRD-guidewaveguidemillimeter wave
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A Waveguide Compatible NRD Guide E-Plane Bandpass Filter for 55 GHz Band OFDM Applications
Takashi SHIMIZU Yuki KAWAHARA Takayuki NAKAGAWA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Vol. E90-C  No. 9  pp. 1729-1735
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices/Circuits
Keyword: 
bandpass filterNRD guideNRD guide E-plane resonatormillimeter wave
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60 GHz Bandpass Filter Using NRD Guide E-Plane Resonators
Takashi SHIMIZU Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Vol. E89-C  No. 12  pp. 1851-1857
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Microwave Techniques)
Category: Passive Circuits/Components
Keyword: 
millimeter wave bandpass filterNRD-guideNRD guide E-plane resonatormillimeter wave integrated circuits
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A NRD Guide Fed Dielectric Lens Antenna with High Gain and Low Sidelobe Characteristics
Takashi SHIMIZU Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1385-1386
Type of Manuscript:  Special Section LETTER (Special Section on Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
Category: Active Circuits & Antenna
Keyword: 
NRD-guidedielectric lens antennalow sidelobe levelmillimeter wave
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Cut-Off Circular Waveguide Method for Dielectric Substrate Measurements in Millimeter Wave Range
Takashi SHIMIZU Yoshio KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/05/01
Vol. E87-C  No. 5  pp. 672-680
Type of Manuscript:  Special Section PAPER (Special Section on Advances in Characterization and Measurement Technologies for Microwave and Millimeter-Wave Materials, Devices and Circuits)
Category: General Methods, Materials, and Passive Circuits
Keyword: 
cut-off circular waveguide methodmillimeter wavedielectric substrate measurement
 Summary | Full Text:PDF

Design of a Grooved Circular Cavity for Dielectric Substrate Measurements in Millimeter Wave Region
Takashi SHIMIZU Zhewang MA Yoshio KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1715-1720
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
dielectric substrate measurementcut-off circular waveguide methodmillimeter wave
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Performance of Fair Queuing with In/Out Bit in Core Stateless Networks
Masayoshi NABESHIMA Takashi SHIMIZU Ikuo YAMASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/06/01
Vol. E84-B  No. 6  pp. 1488-1497
Type of Manuscript:  Special Section PAPER (Special Issue on New Developments on QoS Technologies for Information Networks)
Category: 
Keyword: 
core stateless networksin/out bitminimum guaranteed ratesbandwidth allocationquality of service (QoS)
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MXQ (MaXimal Queuing): A Network Mechanism for Controlling Misbehaving Flows in Best Effort Networks
Takashi SHIMIZU Masayoshi NABESHIMA Ikuo YAMASAKI Takashi KURIMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/05/01
Vol. E84-D  No. 5  pp. 596-603
Type of Manuscript:  Special Section PAPER (Special Issue on High-speed Internet Technology and its Applications)
Category: 
Keyword: 
fairnessmisbehaving flowsbest effortInternet
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Core-Stateless RED Algorithm for Improving Fairness in a Best-Effort Network
Takashi KURIMOTO Takashi SHIMIZU Ryutaro KAWAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/05/01
Vol. E84-B  No. 5  pp. 1413-1422
Type of Manuscript:  PAPER
Category: Internet
Keyword: 
best-effort serviceInternetfairnessunresponsive flow
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ATM Superpacket Network for Responsive Mega-Data Delivery Service
Hisaya HADAMA Takashi SHIMIZU Masayoshi NABESHIMA Toshinori TSUBOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/05/25
Vol. E81-B  No. 5  pp. 1041-1050
Type of Manuscript:  PAPER
Category: Communication Networks and Services
Keyword: 
ATMATM block transferpacketcongestion control
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Thin-Film Slot Antenna for 700 GHz Submillimeter Wave Radiation
Takashi SHIMIZU yasuhiko ABE Yoshizumi YASUOKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1002-1006
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
submilliwaveslot antennaantenna coupled device
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A Cost-Effective Network for Very Large ATM Cross-Connects--The Delta Network with Expanded Middle Stages--
Takashi SHIMIZU Hiroaki KUNIEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/11/25
Vol. E77-B  No. 11  pp. 1429-1436
Type of Manuscript:  Special Section PAPER (Special Issue on Distributed Architecture for Next Generation Communication Networks)
Category: 
Keyword: 
ATM cross-connectsmultistage interconnection networkdelta networkinternal blockingtemporarily deviating traffic
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Modularization and Processor Placement for DSP Neo-Systolic Array
Kazuhito ITO Kesami HAGIWARA Takashi SHIMIZU Hiroaki KUNIEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/03/25
Vol. E76-A  No. 3  pp. 349-361
Type of Manuscript:  Special Section PAPER (Special Section on the 5th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
VLSI system compilerVLSI signal processingneo-systolic array
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