Wataru CHUJO


Phase Control and Calibration Characteristics of Optically Controlled Phased Array Antenna Feed Using Multiple SMFs
Daiki TAKEUCHI Wataru CHUJO Shin-ichi YAMAMOTO Yahei KOYAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1634-1640
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Microwave and Millimeter-Wave Antennas
Keyword: 
optically controlled phased array antennaSMFLDmicrowavemillimeter-wavecalibration
 Summary | Full Text:PDF

80 Gbit/s Conventional and Carrier-Suppressed RZ Signals Transmission over 200 km Standard Fiber by Using Mid-Span Optical Phase Conjugation
Jun INOUE Wataru CHUJO Hideyuki SOTOBAYASHI Hitoshi KAWAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/05/01
Vol. E86-B  No. 5  pp. 1555-1561
Type of Manuscript:  INVITED PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: OECC Awarded Paper
Keyword: 
mid-span optical phase conjugationcarrier suppressed RZ signalsemiconductor optical amplifierfour-wave mixingstandard single-mode fiber
 Summary | Full Text:PDF

Sub-Picosecond Transform-Limited 160 Gbit/s Optical Pulse Compression Using Supercontinuum Generation
Jun INOUE Hideyuki SOTOBAYASHI Wataru CHUJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/09/01
Vol. E85-C  No. 9  pp. 1718-1719
Type of Manuscript:  LETTER
Category: Lasers, Quantum Electronics
Keyword: 
supercontinuum generationultrafast optical pulsechirping compensationoptical time division multiplexing
 Summary | Full Text:PDF

The Width-Conversion of an Optical Signal by Using an Erbium-Doped Fiber and an Asymmetric Optical Circuit
Ki-Hwan PARK Wataru CHUJO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/03/01
Vol. E85-B  No. 3  pp. 652-654
Type of Manuscript:  LETTER
Category: Fiber-Optic Transmission
Keyword: 
erbium-doped fiberpulse width conversionphase shiftasymmetric circuit
 Summary | Full Text:PDF

An Electro-Optic BFN for Array Antenna Beam Forming
Yoshiaki KAMIYA Yasushi MURAKAMI Wataru CHUJO Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1090-1094
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
microwave and millimeter wave technologyarray antennabeam forming networkheterodyne photodetection
 Summary | Full Text:PDF

High-Tc Superconducting Active Slot Antenna with a YBCO Step-Edge Josephson Junction Array
Wataru CHUJO Hisashi SHIMAKAGE Zhen WANG Bokuji KOMIYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1007-1011
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
superconducting antennaactive antennahigh TcJosephson junctioncoplanar waveguide
 Summary | Full Text:PDF

Study on Mutual Coupling between Two Ports of Dual Slot-Coupled Circular Microstrip Antennas
Yasushi MURAKAMI Wataru CHUJO Isamu CHIBA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Vol. E77-B  No. 6  pp. 815-822
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
antennas and propagationmicrostrip antennacircular polarizationmutual couplingslot-coupling
 Summary | Full Text:PDF

Improvement of the Isolation Characteristics of a Two-Layer Self-Diplexing Array Antenna Using a Circularly Polarized Ring Patch Antenna
Wataru CHUJO Masayuki FUJISE Hiroyuki ARAI Naohisa GOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/07/25
Vol. E76-B  No. 7  pp. 755-758
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: 
antennas and propagationself-diplexing antennaarray antennaring patchcircular polarization
 Summary | Full Text:PDF

A Link Study of a Low-Earth Orbit Satellite Communications System Using Optical Intersatellite Links
Mitsuo NOHARA Yoshinori ARIMOTO Wataru CHUJO Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/05/25
Vol. E76-B  No. 5  pp. 536-543
Type of Manuscript:  Special Section PAPER (Special Issue on Satellite Communications Networking and Applications)
Category: 
Keyword: 
low-earth orbit satellitesatellite communicationoptical intersatellite linkISL network
 Summary | Full Text:PDF

Optical Waveguide Phase Controller for Microwave Signals Generated by Heterodyne Photodetection
Yoshiaki KAMIYA Wataru CHUJO Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/02/25
Vol. E76-C  No. 2  pp. 305-307
Type of Manuscript:  Special Section LETTER (Special Issue on Optical/Microwave Interaction Devices, Circuits and Systems)
Category: Fiber Optic Radio Links
Keyword: 
heterodyne photodetectionoptical waveguideelectro-optic phase shiftingmicrowave phase controller
 Summary | Full Text:PDF

A Two-Layer Self-Diplexing Antenna Using a Circularly Polarized Ring Patch Antenna
Wataru CHUJO Masayuki FUJISE Masayuki NAKANO Hiroyuki ARAI Naohisa GOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/10/25
Vol. E74-B  No. 10  pp. 3261-3267
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Communication Antennas)
Category: 
Keyword: 
 Summary | Full Text:PDF