Keyword : high efficiency


4.5-/4.9-GHz-Band Selective High-Efficiency GaN HEMT Power Amplifier by Characteristic Impedance Switching
Kazuki MASHIMO Ryo ISHIKAWA Kazuhiko HONJO 
Publication:   
Publication Date: 2018/10/01
Vol. E101-C  No. 10 ; pp. 751-758
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
power amplifierhigh efficiencyband selectiveGaN HEMTPIN diode
 Summary | Full Text:PDF(2.2MB)

Experimental Design Method for High-Efficiency Microwave Power Amplifiers Based on a Low-Frequency Active Harmonic Load-Pull Technique
Ryo ISHIKAWA Yoichiro TAKAYAMA Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/10/01
Vol. E99-C  No. 10 ; pp. 1147-1155
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
high efficiencypower amplifieractive load-pullharmonic tuning
 Summary | Full Text:PDF(1.4MB)

A Current Mode Buck/Boost DC-DC Converter With Automatic Mode Transition and Light Load Efficiency Enhancement
Yanzhao MA Shaoxi WANG Shengbing ZHANG Xiaoya FAN Ran ZHENG 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/06/01
Vol. E98-C  No. 6 ; pp. 496-503
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
automatic mode transitionbuck/boostcurrent modehigh efficiency
 Summary | Full Text:PDF(3.9MB)

A Digitally-Controlled SMPS Using a Novel High-Resolution DPWM Generator Based on a Pseudo Relaxation-Oscillation Technique
Ji-Hoon LIM Won-Young JUNG Yong-Ju KIM Inchae SONG Jae-Kyung WEE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/02/01
Vol. E96-C  No. 2 ; pp. 277-284
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
switching mode power supply (SMPS)digital pulse width modulation (DPWM)over/under-shoothigh efficiency
 Summary | Full Text:PDF(2.5MB)

A High Efficiency Hybrid Step-Up/Step-Down DC-DC Converter Using Digital Dither for Smooth Transition
Yanzhao MA Hongyi WANG Guican CHEN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12 ; pp. 2685-2692
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Circuit Design
Keyword: 
digital ditherhigh efficiencysmooth transitionstep-up/step-down
 Summary | Full Text:PDF(886.5KB)

A High-Efficiency Circularly-Polarized Aperture Array Antenna with a Corporate-Feed Circuit in the 60 GHz Band
Yohei MIURA Jiro HIROKAWA Makoto ANDO Kazufumi IGARASHI Goro YOSHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10 ; pp. 1618-1625
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Microwave and Millimeter-Wave Antennas
Keyword: 
array antennacorporate-feedcircular polarized wavehigh efficiency
 Summary | Full Text:PDF(1.9MB)

Design and Modeling of a High Efficiency Step-Up/Step-Down DC-DC Converter with Smooth Transition
Yanzhao MA Hongyi WANG Guican CHEN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2 ; pp. 646-652
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
constant time buck-boost (CTBB) modestep-up/step-downhigh efficiencysmooth transition
 Summary | Full Text:PDF(1.2MB)

Highly Accurate and Efficient Current-Mode PWM CMOS DC-DC Buck Converter with On-Chip Current-Sensing
Kuo-Hsing CHENG Chia-Wei SU Hsin-Hsin KO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/12/01
Vol. E91-C  No. 12 ; pp. 1941-1950
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
buck convertercurrent-mode controlPWMcurrent-sensinghigh efficiencyhigh accurate
 Summary | Full Text:PDF(2.2MB)

Experimental Verification of Lumped Element Circuit Synthesis Method for Class-F Microwave Amplifier Using InGaP/GaAs HBT
Kiyoshi AIKAWA Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12 ; pp. 2382-2384
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
microwave class-F amplifierhigh efficiencylumped elemnt
 Summary | Full Text:PDF(316.5KB)

Improved Hybrid-Parallel Single Stage PFC Converter
Chunfeng JIN Tamotsu NINOMIYA Shin NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2 ; pp. 745-750
Type of Manuscript:  PAPER
Category: Energy in Electronics Communications
Keyword: 
single stage AC-DC covnerterIEC61000-3-2 class DDCMhigh efficiencyworld wide range
 Summary | Full Text:PDF(1.1MB)

Highly Efficient Electron Emissions from Single-Crystalline CVD Diamond Surfaces
Toshimichi ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/05/01
Vol. E86-C  No. 5 ; pp. 797-802
Type of Manuscript:  Special Section PAPER (Special Issue on Field Electron Emission from Carbon Materials)
Category: 
Keyword: 
CVD diamondelectron emissionimpact ionizationhigh efficiency
 Summary | Full Text:PDF(531.2KB)

A High-Efficiency Linear Power Amplifier with a Novel Output Power Control Technique
Yo YAMAGUCHI Masahiro MURAGUCHI Tadao NAKAGAWA Masashi NAKATSUGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/06/25
Vol. E81-C  No. 6 ; pp. 892-897
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Module Technology)
Category: Semiconductor Devices and Amplifiers
Keyword: 
high efficiencylinearoutput power controlpower amplifiermobile communication
 Summary | Full Text:PDF(457.1KB)

A Small-Sized 10 W Module for 1.5 GHz Portable DMCA Radios Using New Power Divider/Combiner
Masahiro MAEDA Morio NAKAMURA Shigeru MORIMOTO Hiroyuki MASATO Yorito OTA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/06/25
Vol. E80-C  No. 6 ; pp. 751-756
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
Category: 
Keyword: 
GaAspower modulehigh frequencypower divider/combinerFETisolationsecond-harmonic controlsmall sizehigh powerhigh efficiencylow supply voltagemobile radioDMCA
 Summary | Full Text:PDF(459.9KB)

A Low Distortion and High Efficiency Paralleled Power Amplifier without an Isolator in Wide Range of Load Impedances
Hikaru IKEDA Hiroaki KOSUGI Tomoki UWANO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/06/25
Vol. E80-C  No. 6 ; pp. 763-767
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
Category: 
Keyword: 
microwave amplifierlow distortionhigh efficiencyparalleled amplifierπ/4-DQPSK
 Summary | Full Text:PDF(363.3KB)

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(721KB)

A High Efficiency GaAs Power Amplifier of 4.6 V Operation for 1.5 GHz Digital Cellular Phone Systems
Akihisa SUGIMURA Kazuki TATEOKA Hidetoshi FURUKAWA Kunihiko KANAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9 ; pp. 1237-1240
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
GaAs FETpower amplifier modulehigh efficiencyadjacent channel leakage powerπ/4-shift OPSK signal
 Summary | Full Text:PDF(380.6KB)