Mitsuhiro SHIMOZAWA


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

A 15GHz-Band 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-Band Massive MIMO in 5G
Koji TSUTSUMI Takaya MARUYAMA Wataru YAMAMOTO Takanobu FUJIWARA Tatsuya HAGIWARA Ichiro SOMADA Eiji TANIGUCHI Mitsuhiro SHIMOZAWA 
Publication:   
Publication Date: 2017/10/01
Vol. E100-C  No. 10  pp. 825-832
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
massive MIMOactive phased array antennahigh SHFphase shiftersvariable gain amplifiersCMOS integrated circuits
 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

0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio
Shintaro SHINJO Fumiki ONOMA Koji TSUTSUMI Noriharu SUEMATSU Mitsuhiro SHIMOZAWA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3701-3710
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Wideband RF Systems
Keyword: 
microwaveMMIC transmittersMMIC mixersmobile communicationmodulationwireless LAN
 Summary | Full Text:PDF

A 2 to 5 GHz-Band Self Frequency Dividing Quadrature Mixer Using Current Re-Use Configuration
Eiji TANIGUCHI Mitsuhiro SHIMOZAWA Noriharu SUEMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3711-3716
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Wideband RF Systems
Keyword: 
SiSiGeMMICRFICmixerconverterdirect conversion receivercognitive radio
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A Balanced Even Harmonic Quadrature Mixer Using Anti Parallel Diode Pairs
Mitsuhiro SHIMOZAWA Noriharu SUEMATSU Kenji ITOH Yoji ISOTA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Vol. E89-C  No. 12  pp. 1821-1828
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Microwave Techniques)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
microwavemixerharmonic mixerdirect conversion receiver
 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

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