Eiji TANIGUCHI


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

Adaptively Phase-Shift Controlled Self-Injection Locked VCO
Masaomi TSURU Kengo KAWASAKI Koji TSUTSUMI Eiji TANIGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/07/01
Vol. E98-C  No. 7  pp. 677-684
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
self-injection locked oscillatorphase noisedelay linesphase-shift control
 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
 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

A 2 GHz-Band Even Harmonic Type SiGe-MMIC Direct Conversion CECCTP Mixer
Eiji TANIGUCHI Kenichi MAEDA Chiemi SAWAUMI Noriharu SUEMATSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/07/01
Vol. E85-C  No. 7  pp. 1412-1418
Type of Manuscript:  Special Section PAPER (Special Issue on Silicon RF Device & Integrated Circuit Technologies)
Category: 
Keyword: 
microwavemixerheterojunction bipolar transistor (HBT)SiGe
 Summary | Full Text:PDF