Kazutomi MORI


A 0.3-to-5.5 GHz Digital Frequency Discriminator IC with Time to Digital Converter and Edge Counter for Instantaneous Frequency Measurement
Akihito HIRAI Koji TSUTSUMI Hideyuki NAKAMIZO Eiji TANIGUCHI Kenichi TAJIMA Kazutomi MORI Masaomi TSURU Mitsuhiro SHIMOZAWA 
Publication:   
Publication Date: 2019/07/01
Vol. E102-C  No. 7  pp. 547-557
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
digital frequency discriminator (DFD)instantaneous frequency measurement (IFM)time-to-digital converter (TDC)multiphase clock
 Summary | Full Text:PDF

On-Chip Temperature Compensation Active Bias Circuit Having Tunable Temperature Slope for GaAs FET MMIC PA
Shintaro SHINJO Kazutomi MORI Tomokazu OGOMI Yoshihiro TSUKAHARA Mitsuhiro SHIMOZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1498-1507
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Devices and Circuits
Keyword: 
temperature compensationMMIC power amplifiersGaAs FETthreshold voltage
 Summary | Full Text:PDF

Analog Pre-Distortion Linearizer Using Self Base Bias Controlled Amplifier
Shintaro SHINJO Kazutomi MORI Keiki YAMADA Noriharu SUEMATSU Mitsuhiro SHIMOZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 966-974
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
distortionenvelopelinearizermicrowavepower amplifiersilicon
 Summary | Full Text:PDF

A Low Quiescent Current CV/CC Parallel Operation HBT Power Amplifier for W-CDMA Terminals
Shintaro SHINJO Kazutomi MORI Hiro-omi UEDA Akira OHTA Hiroaki SEKI Noriharu SUEMATSU Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1444-1450
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
microwavepower amplifierheterojunction bipolar transistor (HBT)inductor base feedresistor base feed
 Summary | Full Text:PDF

An L-Band High Efficiency and Low Distortion Multi-Stage Amplifier Using Self Phase Distortion Compensation Technique
Yukio IKEDA Kazutomi MORI Shintaro SHINJO Fumimasa KITABAYASHI Akira OHTA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 1967-1972
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
microwaveamplifiertransistorPHEMTdistortionefficiency
 Summary | Full Text:PDF

Low Quiescent Current SiGe HBT Driver Amplifier Having Self Base Bias Control Circuit
Shintaro SHINJO Kazutomi MORI Hiroyuki JOBA Noriharu SUEMATSU Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/07/01
Vol. E85-C  No. 7  pp. 1404-1411
Type of Manuscript:  Special Section PAPER (Special Issue on Silicon RF Device & Integrated Circuit Technologies)
Category: 
Keyword: 
microwavepower amplifierheterojunction bipolar transistor (HBT)SiGebias circuit
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A Large-Signal Simulation Program for Multi-Stage Power Amplifier Modules by Using a Novel Interpolation
Kazuhisa YAMAUCHI Morishige HIEDA Kazutomi MORI Koji YAMANAKA Yoshitada IYAMA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 891-897
Type of Manuscript:  Special Section PAPER (Special Issue on Techniques for Constructing Microwave Simulators--Design and Analysis Tools for Electromagnetic Fields, Circuits, and Antennas--)
Category: Modeling of Nonlinear Microwave Circuits
Keyword: 
microwaveamplifier modulelarge-signal characteristicsmulti-stageinterpolation
 Summary | Full Text:PDF

An Efficient Large-Signal Modeling Method Using Load-Line Analysis and Its Application to Non-linear Characterization of FET
Yukio IKEDA Kazutomi MORI Masatoshi NAKAYAMA Yasushi ITOH Osami ISHIDA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 875-880
Type of Manuscript:  Special Section PAPER (Special Issue on Techniques for Constructing Microwave Simulators--Design and Analysis Tools for Electromagnetic Fields, Circuits, and Antennas--)
Category: Modeling of Nonlinear Microwave Circuits
Keyword: 
microwaveamplifierFETmodelingnonlinear analysis
 Summary | Full Text:PDF

A GSM900/DCS1800 Dual-Band MMIC Power Amplifier Using Outside-Base/Center-Via-Hole Layout Multifinger HBT
Kazutomi MORI Kenichiro CHOUMEI Teruyuki SHIMURA Tadashi TAKAGI Yukio IKEDA Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/11/25
Vol. E82-C  No. 11  pp. 1913-1920
Type of Manuscript:  Special Section PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: RF Power Devices
Keyword: 
microwaveamplifierefficiencylayoutheterojunction bipolar transistormultifinger
 Summary | Full Text:PDF

A Distortion Analysis Method for FET Amplifiers Using Novel Frequency-Dependent Complex Power Series Model
Kenichi HORIGUCHI Kazuhisa YAMAUCHI Kazutomi MORI Masatoshi NAKAYAMA Yukio IKEDA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/05/25
Vol. E82-C  No. 5  pp. 737-743
Type of Manuscript:  Special Section PAPER (Special Issue on Low Distortion Technology for Microwave Devices and Circuits)
Category: 
Keyword: 
distortionanalysisFET amplifiersfrequency characteristicscomplex power seriesnonlinear
 Summary | Full Text:PDF

A Calculation Method of Large-Signal Characteristics of Multi-Stage Power Amplifier Modules Using Source-Pull and Load-Pull Data
Kazutomi MORI Yasushi ITOH Katsuya KOMURO Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/06/25
Vol. E81-C  No. 6  pp. 904-910
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Module Technology)
Category: Semiconductor Devices and Amplifiers
Keyword: 
microwavesolid state power amplifiermulti-stage power amplifiercalculation method
 Summary | Full Text:PDF

Improvement of Adjacent Channel Leakage Power and Intermodulation Distortion by Using a GaAs FET Linearizer with a Large Source Inductance
Kazutomi MORI Kazuhisa YAMAUCHI Masatoshi NAKAYAMA Yasushi ITOH Tadashi TAKAGI Hidetoshi KUREBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/06/25
Vol. E80-C  No. 6  pp. 775-781
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
Category: 
Keyword: 
microwaveamplifierlinearizerintermodulation distortionadjacent chamel leakage power
 Summary | Full Text:PDF

High Efficiency AlGaAs/GaAs Power HBTs at a Low Supply Voltage for Digital Cellular Phones
Teruyuki SHIMURA Takeshi MIURA Yutaka UNEME Hirofumi NAKANO Ryo HATTORI Mutsuyuki OTSUBO Kazutomi MORI Akira INOUE Noriyuki TANINO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/06/25
Vol. E80-C  No. 6  pp. 740-745
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
Category: 
Keyword: 
heterojunction bipolar transistordigital cellular phoneindividual thermal shuntemitter air-bridgebias mode
 Summary | Full Text:PDF

Direct Efficiency and Power Calculation Method and Its Application to Low Voltage High Efficiency Power Amplifier
Kazutomi MORI Masatoshi NAKAYAMA Yasushi ITOH Satoshi MURAKAMI Yasuharu NAKAJIMA Tadashi TAKAGI Yasuo MITSUI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9  pp. 1229-1236
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
calculation methodamplifierMMIChigh efficiencyhigh powerlow-voltage
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