Tadashi TAKAGI


1/2fs Direct RF Under Sampling Receiver for Multi Channel Satellite Systems
Daliso BANDA Mizuki MOTOYOSHI Tomokazu KOIZUMI Osamu WADA Tuan Thanh TA Suguru KAMEDA Noriharu SUEMATSU Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/07/01
Vol. E98-C  No. 7  pp. 669-676
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
RF samplingSoftware Radiosampling mixerdirect RFRFICsatellite communication
 Summary | Full Text:PDF

A Calibrationless Si-CMOS 5-bit Baseband Phase Shifter Using a Fixed-Gain-Amplifier Matrix
Tuan Thanh TA Shoichi TANIFUJI Suguru KAMEDA Noriharu SUEMATSU Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/10/01
Vol. E96-C  No. 10  pp. 1322-1329
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
baseband phase shifterbroadband communicationmillimeter wavephased array antenna
 Summary | Full Text:PDF

Measured Downlink Throughput Performance of MBWA System in Urban Area
Suguru KAMEDA Hiroshi OGUMA Noboru IZUKA Yasuyoshi ASANO Yoshiharu YAMAZAKI Noriharu SUEMATSU Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/01/01
Vol. E96-B  No. 1  pp. 329-334
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
MBWAFH-OFDMAFLASH-OFDMfield trial
 Summary | Full Text:PDF

60-GHz Band Copper Ball Vertical Interconnection for MMW 3-D System-in-Package Front-End Modules
Satoshi YOSHIDA Shoichi TANIFUJI Suguru KAMEDA Noriharu SUEMATSU Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/07/01
Vol. E95-C  No. 7  pp. 1276-1284
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
millimeter-wave60-GHz bandsystem-in-packagevertical interconnectioncopper ballsWPAN
 Summary | Full Text:PDF

A 60 GHz-Band 3-Dimensional System-in-Package Transmitter Module with Integrated Antenna
Noriharu SUEMATSU Satoshi YOSHIDA Shoichi TANIFUJI Suguru KAMEDA Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/07/01
Vol. E95-C  No. 7  pp. 1141-1146
Type of Manuscript:  INVITED PAPER (Special Section on Recent Trends of Microwave Systems and Their Fundamental Technologies)
Category: 
Keyword: 
moduleRFICMMICantenna integrationmillimeter-waveSiPstud bump
 Summary | Full Text:PDF

Proposal of Heterogeneous Wireless Network with Handover in Application Layer: Feasibility Study Based on Field Trial Results
Suguru KAMEDA Hiroshi OGUMA Noboru IZUKA Fumihiro YAMAGATA Yasuyoshi ASANO Yoshiharu YAMAZAKI Shoichi TANIFUJI Noriharu SUEMATSU Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1152-1160
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
heterogeneous wireless networksWLANMBWAhandover
 Summary | Full Text:PDF

A 5 GHz Band Low Noise and Wide Tuning Range Si-CMOS VCO with a Novel Varactors Pair Circuit
Tuan Thanh TA Suguru KAMEDA Tadashi TAKAGI Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 755-762
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
5 GHzsilicon complementary metal oxide semiconductor (Si-CMOS)voltage controlled oscillator (VCO)low noisewide tuning range
 Summary | Full Text:PDF

Efficiency Enhancement of a Digital Predistortion Doherty Amplifier Transmitter Using a Virtual Open Stub Technique
Kenichi HORIGUCHI Satoru ISHIZAKA Masatoshi NAKAYAMA Ryoji HAYASHI Yoji ISOTA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Vol. E90-C  No. 9  pp. 1670-1677
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Devices/Circuits
Keyword: 
power amplifiermicrowave Doherty amplifierefficiencyorthogonal frequency division multiplexing (OFDM)predistortion
 Summary | Full Text:PDF

An Even Harmonic Quadrature Mixer with a Simple Filter Configuration and an Integrated LTCC Module for W-CDMA Direct Conversion Receiver
Mitsuhiro SHIMOZAWA Kenichi MAEDA Eiji TANIGUCHI Keiichi SADAHIRO Takayuki IKUSHIMA Tamotsu NISHINO Noriharu SUEMATSU Kenji ITOH Yoji ISOTA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/04/01
Vol. E89-C  No. 4  pp. 473-481
Type of Manuscript:  Special Section PAPER (Special Section on Advanced RF Technologies for Compact Wireless Equipment and Mobile Phones)
Category: 
Keyword: 
direct conversion receiverLTCCmodulequadrature mixerharmonic mixer
 Summary | Full Text:PDF

A Millimeter-Wave Pulse Transmitter with a Harmonic Mixer
Kenji KAWAKAMI Hiroshi IKEMATSU Koichi MATSUO Naohisa UEHARA Moriyasu MIYAZAKI Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/10/01
Vol. E88-C  No. 10  pp. 1947-1951
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies on Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
Category: 
Keyword: 
millimeter-wavepulse transmitterharmonic mixer
 Summary | Full Text:PDF

A Compact Ku-Band 5-Bit MMIC Phase Shifter
Morishige HIEDA Kenichi MIYAGUCHI Hitoshi KURUSU Hiroshi IKEMATSU Yoshitada IYAMA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/12/01
Vol. E86-C  No. 12  pp. 2437-2444
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
Category: Active(Phase Shifter)
Keyword: 
monolithic microwave integrated circuit (MMIC)phase shifter
 Summary | Full Text:PDF

A C-Ku Band 5-Bit MMIC Phase Shifter Using Optimized Reflective Series/Parallel LC Circuits
Kenichi MIYAGUCHI Morishige HIEDA Yukinobu TARUI Mikio HATAMOTO Koh KANAYA Yoshitada IYAMA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/12/01
Vol. E86-C  No. 12  pp. 2429-2436
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
Category: Active(Phase Shifter)
Keyword: 
microwavephase shiftermonolithic microwave integrated circuit (MMIC)reflective circuitbroad-band
 Summary | Full Text:PDF

A 270 GHz-Band Planer Type MMIC Image Rejection SIS Mixer
Morishige HIEDA Tetsuya TAKAMI Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1458-1463
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
SISmixerimage rejection
 Summary | Full Text:PDF

Feedforward Power Amplifier Control Method Using Weight Divided Adaptive Algorithm
Kenichi HORIGUCHI Atsushi OKAMURA Masatoshi NAKAYAMA Yukio IKEDA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1494-1500
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
normalized least mean squareadaptive algorithmfeedforwardpower amplifiermicrowave
 Summary | Full Text:PDF

An Even Harmonic Mixer Using Self-Biased Anti-Parallel Diode Pair
Mitsuhiro SHIMOZAWA Takatoshi KATSURA Kenichi MAEDA Eiji TANIGUCHI Takayuki IKUSHIMA Noriharu SUEMATSU Kenji ITOH Yoji ISOTA Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1464-1471
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
microwavemixerharmonic mixeranti-parallel diode pairself-bias
 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

A High Efficiency Bias Condition Optimized Feedforward Power Amplifier with a Series Diode Linearizer
Kenichi HORIGUCHI Masatoshi NAKAYAMA Yuji SAKAI Kazuyuki TOTANI Haruyasu SENDA Yukio IKEDA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 1973-1980
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
feedforward power amplifierspre-distortionbias conditionsoptimizationbase station
 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
 Summary | Full Text:PDF

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

Si Substrate Resistivity Design for On-Chip Matching Circuit Based on Electro-Magnetic Simulation
Masayoshi ONO Noriharu SUEMATSU Shunji KUBO Kensuke NAKAJIMA Yoshitada IYAMA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 923-930
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: Electromagnetics Simulation Techniques
Keyword: 
Si-MMICelectromagnetic simulationhigh resistivity Si substratelow noise amplifierspiral inductor
 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

Intermodulation Distortion of Low Noise Silicon BJT and MOSFET Fabricated in BiCMOS Process
Noriharu SUEMATSU Masayoshi ONO Shunji KUBO Mikio UESUGI Kouichi HASEGAWA Kenji HIROSHIGE Yoshitada IYAMA Tadashi TAKAGI Osami ISHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/05/25
Vol. E82-C  No. 5  pp. 692-698
Type of Manuscript:  Special Section PAPER (Special Issue on Low Distortion Technology for Microwave Devices and Circuits)
Category: 
Keyword: 
distortionlow noiseBJTCMOSmobile communicationSi-MMIC
 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 1. 9 GHz Single-Chip RF Front-End GaAs MMIC with Low-Distortion Cascode FET Mixer
Masatoshi NAKAYAMA Kenichi HORIGUCHI Kazuya YAMAMOTO Yutaka YOSHII Shigeru SUGIYAMA Noriharu SUEMATSU Tadashi TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/05/25
Vol. E82-C  No. 5  pp. 717-724
Type of Manuscript:  Special Section PAPER (Special Issue on Low Distortion Technology for Microwave Devices and Circuits)
Category: 
Keyword: 
GaAs MMICsingle-chip front-endmixercascode FETlow distortion
 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

A New GaAs Negative Voltage Generator for a Power Amplifier Applied to a Single-Chip T/R-MMIC Front-End
Kazuya YAMAMOTO Kosei MAEMURA Nobuyuki KASAI Yutaka YOSHII Yukio MIYAZAKI Masatoshi NAKAYAMA Noriko OGATA Tadashi TAKAGI Mutsuyuki OTSUBO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/12/25
Vol. E79-C  No. 12  pp. 1741-1750
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
negative voltage generatorGaAs MESFETpower amplifireMMIC front-end
 Summary | Full Text:PDF

A Q-Band High Gain, Low Noise Variable Gain Amplifier Using Dual Gate AlGaAs/InGaAs Pseudomorphic HEMTs
Takuo KASHIWA Takayuki KATOH Naohito YOSHIDA Hiroyuki MINAMI Toshiaki KITANO Makio KOMARU Noriyuki TANINO Tadashi TAKAGI Osamu ISHIHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/04/25
Vol. E79-C  No. 4  pp. 573-579
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
millimeter-wavelow noise figureMMICdual gategain control
 Summary | Full Text:PDF

GaAs 10 Gb/s 64:1 Multiplexer/Demultiplexer Chip Sets
Masaaki SHIMADA Norio HIGASHISAKA Akira OHTA Kenji HOSOGI Kazuo KUBO Noriyuki TANINO Tadashi TAKAGI Fuminobu HIDANI Osamu ISHIHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/04/25
Vol. E79-C  No. 4  pp. 503-511
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed LSIs)
Category: 
Keyword: 
multiplexerdemultiplexerGaAs10 Gb/sSCFLDCFL
 Summary | Full Text:PDF

Millimeter-Wave Monolithic AlGaAs/InGaAs/GaAs Pseudomorphic HEMT Low Noise Amplifier Modules for Advanced Microwave Scanning Radiometer
Kazuhiko NAKAHARA Yasushi ITOH Yoshie HORIIE Takeshi SAKURA Naohito YOSHIDA Takayuki KATOH Tadashi TAKAGI Yasuo MITSUI Yasuyuki ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9  pp. 1210-1215
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
amplifierlow noiseMMICmillimeter-waveHEMT
 Summary | Full Text:PDF

A Wideband Monolithic Lossy Match Power Amplifier Having an LPF/HPF-Combined Interstage Network
Mitsuru MOCHIZUKI Yasushi ITOH Masatoshi NII Tadashi TAKAGI Yasuo MITSUI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9  pp. 1252-1254
Type of Manuscript:  Special Section LETTER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
amplifierpowerwidebandmonolithic
 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
 Summary | Full Text:PDF

Analysis of High Power Amplifier Instability due to f0/2 Loop Oscillation
Tadashi TAKAGI Mitsuru MOCHIZUKI Yukinobu TARUI Yasushi ITOH Seiichi TSUJI Yasuo MITSUI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 936-943
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
amplifierhigh powerinstabilityloop oscillationanalysis
 Summary | Full Text:PDF

Intermodulation and Noise Power Ratio Analysis of Multiple-Carrier Amplifiers Using Discrete Fourier Transform
Tadashi TAKAGI Satoshi OGURA Yukio IKEDA Noriharu SUEMATSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/06/25
Vol. E77-C  No. 6  pp. 935-941
Type of Manuscript:  Special Section PAPER (Special Issue on Measurement Techniques for Microwave/Millimeter Wave)
Category: 
Keyword: 
intermodulationnoise power ratioanalysismeasurementmultiple carrieramplifier
 Summary | Full Text:PDF

Wideband High Power Amplifier Design Using Novel Band-Pass Filters with FET's Parasitic Reactances
Yasushi ITOH Tadashi TAKAGI Hiroyuki MASUNO Masaki KOHNO Tsutomu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/06/25
Vol. E76-C  No. 6  pp. 938-943
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology for Advanced Functions and Size-Reductions)
Category: 
Keyword: 
amplifierwidebandhigh powerHEMTbandpass filter
 Summary | Full Text:PDF

A Millimeter-Wave Monolithic High Power Amplifier Using a Novel Tandem FET
Tadashi TAKAGI Kiyoharu SEINO Takuo KASHIWA Tsutomu HASHIMOTO Fumio TAKEDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/06/25
Vol. E75-C  No. 6  pp. 669-673
Type of Manuscript:  Special Section PAPER (Special Issue on MMIC Technology)
Category: 
Keyword: 
millimeter-wavehigh power amplifierMMICtandem FET
 Summary | Full Text:PDF