Futoshi KUROKI


The First Higher Mode Strip Transmission Line as a Loss-Reduced and Mass-Productive Printed Circuit at Millimeter-Wavelength
Futoshi KUROKI Kazuya MIYAMOTO Shigeo NISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/10/01
Vol. E88-C  No. 10  pp. 1961-1967
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies on Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
Category: 
Keyword: 
strip transmission linesguided wavesreactance elementsand millimeter-wave integrated circuits
 Summary | Full Text:PDF(842KB)

A Transition between NRD Guide and Microstrip Line at 60 GHz
Futoshi KUROKI Makoto KIMURA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/10/01
Vol. E88-C  No. 10  pp. 1968-1972
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies on Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
Category: 
Keyword: 
NRD guidemicrostrip linemode transformersmillimeter-wave integrated circuits
 Summary | Full Text:PDF(786.7KB)

Radiation Characteristics of NRD-Guide-Compatible Pyramidal Horn Antenna at 60 GHz
Futoshi KUROKI Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1523-1525
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
millimeter-wave integrated circuitsdielectric waveguideshorn antennasNRD guide
 Summary | Full Text:PDF(340.4KB)

Fully CAD-Based Design of a Mode Transformer between NRD Guide and Vertical Strip Line and Its Applications to Junction Circuits at 60 GHz
Futoshi KUROKI Makoto KIMURA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/01/01
Vol. E88-C  No. 1  pp. 105-109
Type of Manuscript:  Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
Category: 
Keyword: 
NRD guidevertical strip linemode transformersjunction circuitsmillimeter-wave integrated circuits
 Summary | Full Text:PDF(693.5KB)

Experimental Verification of Mode Coupling Phenomenon in High Permittivity NRD Guide with Small Remaining Asymmetrically Air Gap
Futoshi KUROKI Kouichi YAMAOKA Motofumi YAMAGUCHI Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/01/01
Vol. E88-C  No. 1  pp. 110-111
Type of Manuscript:  Special Section LETTER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
Category: 
Keyword: 
NRD guidemode couplingdielectric waveguidemillimeter-wave integrated circuits
 Summary | Full Text:PDF(283.9KB)

Flexible Transmission Line Using High Permittivity LSE-NRD Guide at 60 GHz
Futoshi KUROKI Akira MIYAMAE Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/12/01
Vol. E87-C  No. 12  pp. 2195-2197
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
millimeter-wave integrated circuitsdielectric waveguidesand NRD guide
 Summary | Full Text:PDF(511KB)

NRD Guide Integrated Circuit-Compatible Folded Planar Antenna Fed by High Permittivity LSE-NRD Guide Radiator at 60 GHz
Futoshi KUROKI Motofumi YAMAGUCHI Yoshihiko WAGATSUMA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1412-1417
Type of Manuscript:  Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Antennas, Circuits and Receivers
Keyword: 
millimeter-wave planar antennasdielectric waveguidesNRD guidemode transformers
 Summary | Full Text:PDF(1.1MB)

Band Widening of NRD Guide Schottky Barrier Diode Devices and Its Application to a Wireless Multi-Channel TV-Signal Distribution System at 60 GHz
Futoshi KUROKI Satoru SHINKE Tomoyuki MUKAI Eiji SUEMATSU Hiroya SATO Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/12/01
Vol. E86-C  No. 12  pp. 2422-2428
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
Category: Active(Switch)
Keyword: 
millimeter-wave communicationsmillimeter-wave technologydielectric waveguidemillimeter-wave transmitter/receiver
 Summary | Full Text:PDF(1.5MB)

Low-Loss and Small-Sized NRD Guide Ring Resonators and Their Application to Channel Dropping Filter at 60 GHz
Futoshi KUROKI Kengo WADA Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1601-1606
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
nonradiative dielectric waveguidering resonatorschannel dropping filtersmode coupling theory
 Summary | Full Text:PDF(777.1KB)

NRD Guide P-I-N Diode Devices for Automotive Radar at 77 GHz
Futoshi KUROKI Shouzou NAKAMURA Toshihide FUKUCHI Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/02/01
Vol. E86-C  No. 2  pp. 199-205
Type of Manuscript:  Special Section PAPER (Special Issue on Circuit and Device Technology for High-Speed Wireless Communication)
Category: Active (Switch)
Keyword: 
nonradiative dielectric waveguidep-i-n diodeSPDT switchBPSK modulator
 Summary | Full Text:PDF(991.1KB)

High Permittivity LSE-NRD Guide and Its Application to a New Type of Millimeter Wave Antenna
Futoshi KUROKI Motofumi YAMAGUCHI Yasujirou MINAMITANI Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/02/01
Vol. E86-C  No. 2  pp. 169-175
Type of Manuscript:  Special Section PAPER (Special Issue on Circuit and Device Technology for High-Speed Wireless Communication)
Category: Guided Wave & Antenna
Keyword: 
nonradiative dielectric waveguideguided wavesmillimeter-wave antenna feedersmillimeter-wave fan beam antennas
 Summary | Full Text:PDF(1.5MB)

Band-Widening of Ceramic Resonator Loaded NRD Guide Band-Pass Filter at 60 GHz
Futoshi KUROKI Satoru SHINKE Tsukasa YONEYAMA Hiroya SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/10/01
Vol. E84-C  No. 10  pp. 1569-1574
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-Wave Circuits and Fabrication Technologies Opening up the 21st Century)
Category: 
Keyword: 
millimeter wave filterNRD guideceramic resonatorsmillimeter-wave integrated circuits
 Summary | Full Text:PDF(328.2KB)

NRD Guide Digital Transceivers for Millimeter Wave LAN System
Futoshi KUROKI Tsukasa YONEYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/12/25
Vol. E79-B  No. 12  pp. 1759-1764
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-wave Short-range Application Systems Technology)
Category: 
Keyword: 
millimeter wave integrated circuitdielectric waveguidetransceiverwireless LANNRD guide
 Summary | Full Text:PDF(530.8KB)