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Copyright (c) by IEICE
Hiroaki SEKI
Design and Measurements of Two-Gain-Mode GaAs-BiFET MMIC Power Amplifier Modules with Small Phase Discontinuity for WCDMA Data Communications
Kazuya YAMAMOTO
Miyo MIYASHITA
Kenji MUKAI
Shigeru FUJIWARA
Satoshi SUZUKI
Hiroaki SEKI
Publication:
Publication Date:
2018/01/01
Vol.
E101-C
No.
1
pp.
65-77
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
WCDMA
,
MMIC
,
step attenuator
,
two gain modes
,
directional coupler
,
heterojunction bipolar transistors (HBTs)
,
Summary
|
Full Text:PDF
Experimental Study on CDMA GaAs HBT MMIC Power Amplifier Layout Design for Reducing Turn-On Delay in Transient Response
Kazuya YAMAMOTO
Miyo MIYASHITA
Takayuki MATSUZUKA
Tomoyuki ASADA
Kazunobu FUJII
Satoshi SUZUKI
Teruyuki SHIMURA
Hiroaki SEKI
Publication:
Publication Date:
2017/06/01
Vol.
E100-C
No.
6
pp.
618-631
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
heterojunction bipolar transistors (HBTs)
,
MMIC
,
CDMA
,
parallel-amplifier-chain topology
,
transient response
,
thermal coupling
,
Summary
|
Full Text:PDF
Design and Measurements of Building Blocks Supporting a 1.9-GHz-Band BiFET MMIC Power Amplifier for WCDMA Handsets
Kazuya YAMAMOTO
Takayuki MATSUZUKA
Miyo MIYASHITA
Kenichi HORIGUCHI
Shigeo YAMABE
Satoshi SUZUKI
Hiroaki SEKI
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2016/07/01
Vol.
E99-C
No.
7
pp.
837-848
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
MMIC
,
reference voltage generator
,
ESD protection
,
three power modes
,
heterojunction bipolar transistors (HBTs)
,
WCDMA
,
Summary
|
Full Text:PDF
A Current-Mirror-Based GaAs-HBT RF Power Detector Suitable for Base Terminal Monitoring in an HBT Power Stage
Kazuya YAMAMOTO
Hitoshi KURUSU
Miyo MIYASHTA
Satoshi SUZUKI
Hiroaki SEKI
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2015/12/01
Vol.
E98-C
No.
12
pp.
1150-1160
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
power detector
,
current-mirror circuits
,
heterojunction bipolar transistors (HBTs)
,
WiMAX
,
MMIC
,
Summary
|
Full Text:PDF
0.8-/1.5-GHz-Band WCDMA HBT MMIC Power Amplifiers with an Analog Bias Control Scheme
Kazuya YAMAMOTO
Takayuki MATSUZUKA
Miyo MIYASHITA
Kenichi MAEDA
Satoshi SUZUKI
Hiroaki SEKI
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2015/09/01
Vol.
E98-C
No.
9
pp.
934-945
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
analog bias control
,
emitter follower
,
current injection
,
heterojunction bipolar transistors (HBTs)
,
WCDMA
,
Summary
|
Full Text:PDF
A 3.5-GHz-Band GaAs HBT Stage-Bypass-Type Step-Gain Amplifier Using Base-Collector Diode Switches and Its Application to a WiMAX HBT MMIC Power Amplifier Module
Kazuya YAMAMOTO
Miyo MIYASHITA
Hitoshi KURUSU
Yoshinobu SASAKI
Satoshi SUZUKI
Hiroaki SEKI
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2015/07/01
Vol.
E98-C
No.
7
pp.
716-728
Type of Manuscript:
PAPER
Category:
Microwaves, Millimeter-Waves
Keyword:
step gain control
,
diode switches
,
heterojunction bipolar transistors (HBTs)
,
WiMAX
,
MMIC
,
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:
microwave
,
power amplifier
,
heterojunction bipolar transistor (HBT)
,
inductor base feed
,
resistor base feed
,
Summary
|
Full Text:PDF