Keren LI


Two-Step Column-Parallel SAR/Single-Slope ADC for CMOS Image Sensors
Hejiu ZHANG Ningmei YU Nan LYU Keren LI 
Publication:   
Publication Date: 2018/02/01
Vol. E101-A  No. 2  pp. 434-437
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
A/D conversioncolumn-parallel ADCSAR/single-slope ADCCMOS image sensor
 Summary | Full Text:PDF(838.4KB)

Guided-Wave Propagation Characteristics of Fully-Integrated Coplanar-Waveguide Metamaterials with Distributed Loading
Jing GAO Lei ZHU Keren LI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/01/01
Vol. E91-C  No. 1  pp. 34-40
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category: Artificial and Nolinear Materials
Keyword: 
transmission line metamaterialscoplanar-waveguideperiodic structureguided-waveleft-handed and right-handed passbands
 Summary | Full Text:PDF(704.4KB)

Notch-Band Implemented UWB Bandpass Filter
Daisuke KURITA Keren LI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/12/01
Vol. E90-C  No. 12  pp. 2226-2231
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies for Microwave and Millimeter-wave Passive Devices)
Category: 
Keyword: 
UWBbandstop filternotch-bandbandpass filterin-line stub
 Summary | Full Text:PDF(1.1MB)

An Ultra-Wideband (UWB) Bandpass Filter Using Broadside-Coupled Structure and Lumped-Capacitor-Loaded Shunt Stub Resonators
Keren LI Yasuhisa YAMAMOTO Daisuke KURITA Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Vol. E90-C  No. 9  pp. 1736-1742
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices/Circuits
Keyword: 
UWBbandpass filterbroadside-coupledshunt stubattenuation polechip capacitor
 Summary | Full Text:PDF(889.7KB)

RF-CMOS Implementation of UWB Transceivers and Its Application to Video Transmission
Akifumi KASAMATSU Akio TANAKA Hiroshi KODAMA Satoru TANOI Yasuhiro KAIZAKI Juichi NAKADA Masami HAGIO Yoshiaki KURAISHI Keren LI Hitoshi UTAGAWA Toshiaki MATSUI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/09/01
Vol. E88-A  No. 9  pp. 2279-2286
Type of Manuscript:  Special Section PAPER (Special Section on Ultra Wideband Systems)
Category: Hardware
Keyword: 
UWBimplementationCMOSMMICvideo
 Summary | Full Text:PDF(1.3MB)

Miniaturization of Microstrip Line and Coplanar Waveguide for Microwave Integrated Circuits by Using Airbridge Technology
Keren LI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/07/25
Vol. E82-C  No. 7  pp. 1159-1165
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Passive Devices and Circuits
Keyword: 
airbridgeminiaturizationmicrostrip linecoplanar waveguideconformalmappingmicrowave integrated cicruits
 Summary | Full Text:PDF(794.9KB)

Characterization of Microstrip Lines with Various Cross-Sections of Strip Conductors in Microwave Integrated Circuits
Keren LI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/12/25
Vol. E81-C  No. 12  pp. 1845-1851
Type of Manuscript:  Special Section PAPER (Special Issue on Computational Electromagnetics)
Category: 
Keyword: 
microstrip linecross-section of strip conductorshape effectsboundary integral equation methodGreen's function
 Summary | Full Text:PDF(410.5KB)

Analysis of Microstrip Line with a Trapezoidal Dielectric Ridge in Multilayered Media by Partial-Boundary Element Method
Keren LI Kazuhiko ATSUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/10/25
Vol. E79-C  No. 10  pp. 1413-1419
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory-Foundations and Applications)
Category: 
Keyword: 
microstrip linetrapezoidal dielectric ridgemultilayered mediaMMICGreen's functionpartial-boundary element methodboundary integral
 Summary | Full Text:PDF(555.2KB)

Three-Dimensional Analytical Electrostatic Green's Functions for Shielded and Open Arbitrarily Multilayered Medium Structures and Their Application to Analysis of Microstrip Discontinuities
Keren LI Kazuhiko ATSUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/10/25
Vol. E78-C  No. 10  pp. 1366-1372
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
Green's functionmultilayered medium structurethree-dimensional electrostatic problemmicrostrip discontinuitymicrostrip open-endcomplex image charge
 Summary | Full Text:PDF(546.1KB)

Characterization of Single and Coupled Microstrip Lines Covered with Protective Dielectric Film
Kazuhiko ATSUKI Keren LI Shoichiro YAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1095-1099
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
microstrip linecoupled microstrip linemicrowave integrated circuitsmultilayered medium structureprotective dielectric filmpartial-boundary element methodGreen's function
 Summary | Full Text:PDF(424.6KB)

Characterization of Microstrip Lines Near Edge of Dielectric Substrate with Rectangular Boundary Division Method
Keren LI Kazuhiko ATSUKI Hitoshi YAJIMA Eikichi YAMASHITA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/06/25
Vol. E76-C  No. 6  pp. 977-984
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology for Advanced Functions and Size-Reductions)
Category: 
Keyword: 
microstrip linefinite-width of substrateFourier seriesspline functionsubstrate edge
 Summary | Full Text:PDF(600KB)