Hiroyuki ITO


A Sub-1mW Class-C-VCO-Based Low Voltage PLL with Ultra-Low-Power Digitally-Calibrated ILFD in 65nm CMOS
Sho IKEDA Sang_yeop LEE Tatsuya KAMIMURA Hiroyuki ITO Noboru ISHIHARA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/06/01
Vol. E97-C  No. 6  pp. 495-504
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
injection-locked frequency dividerphase-locked loopClass-C VCOCMOSlow supply voltage
 Summary | Full Text:PDF(3.1MB)

Angular Resolution Improvement of Ocean Surface Current Radar Based on the Khatri-Rao Product Array Processing
Hiroyoshi YAMADA Naoki OZAWA Yoshio YAMAGUCHI Keizo HIRANO Hiroyuki ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/10/01
Vol. E96-B  No. 10  pp. 2469-2474
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012)
Category: Adaptive Array Antennas/MIMO
Keyword: 
ocean surface current radarDOA estimationKhatri-Rao productangular resolution improvement
 Summary | Full Text:PDF(1.5MB)

Router Power Reduction through Dynamic Performance Control Based on Traffic Predictions
Hiroyuki ITO Hiroshi HASEGAWA Ken-ichi SATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/10/01
Vol. E95-B  No. 10  pp. 3130-3138
Type of Manuscript:  PAPER
Category: Energy in Electronics Communications
Keyword: 
routerperformance controlenergy efficiency
 Summary | Full Text:PDF(1.7MB)

A Ring-VCO-Based Injection-Locked Frequency Multiplier with Novel Pulse Generation Technique in 65 nm CMOS
Sang_yeop LEE Norifumi KANEMARU Sho IKEDA Tatsuya KAMIMURA Satoru TANOI Hiroyuki ITO Noboru ISHIHARA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/10/01
Vol. E95-C  No. 10  pp. 1589-1597
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
injection locked frequency multiplierring VCOpulse injectionCMOS
 Summary | Full Text:PDF(1.8MB)

Low-Loss Distributed Constant Passive Devices Using Wafer-Level Chip Scale Package Technology
Hiroyuki ITO Hideyuki SUGITA Kenichi OKADA Tatsuya ITO Kazuhisa ITOI Masakazu SATO Ryozo YAMAUCHI Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/03/01
Vol. E90-C  No. 3  pp. 641-643
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
wafer-level chip scale packageRF CMOSpassive device
 Summary | Full Text:PDF(290KB)

RF Passive Components Using Metal Line on Si CMOS
Kazuya MASU Kenichi OKADA Hiroyuki ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/06/01
Vol. E89-C  No. 6  pp. 681-691
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
Si CMOSon-chip passiveinterconnecttransmission lineinductorvariable inductorreconfigurable RF circuit
 Summary | Full Text:PDF(1.6MB)

Wide Tuning Range LC-VCO Using Variable Inductor for Reconfigurable RF Circuit
Yoshiaki YOSHIHARA Hirotaka SUGAWARA Hiroyuki ITO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 507-512
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
VCOoscillatorvariable inductorreconfigurable RF circuit
 Summary | Full Text:PDF(525.6KB)

High Density Differential Transmission Line Structure on Si ULSI
Hiroyuki ITO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 942-948
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
differential transmission lineSi ULSIcrosstalkbus lineinterconnect density
 Summary | Full Text:PDF(641.4KB)