Takuichi HIRANO


Analysis of Effective Material Properties of Metal Dummy Fills in a CMOS Chip
Takuichi HIRANO Ning LI Kenichi OKADA 
Publication:   
Publication Date: 2017/05/01
Vol. E100-B  No. 5  pp. 793-798
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
dummy metal fillsCMOSeffective material propertypermittivitypermeabilitymillimeter-wave
 Summary | Full Text:PDF(2.2MB)

Rain Sensing Using Dual-Frequency Measurements from Small-Scale Millimeter-Wave Network
Hung V. LE Capsoni CARLO Nebuloni ROBERTO Luini LORENZO Takuichi HIRANO Toru TANIGUCHI Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/06/01
Vol. E98-B  No. 6  pp. 1040-1049
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
millimeter-wave networkrain attenuationdual-frequencyrain sensingrain rate estimation
 Summary | Full Text:PDF(4.4MB)

A 60-GHz CMOS Transmitter with Gain-Enhanced On-Chip Antenna for Short-Range Wireless Interconnections
Rui WU Wei DENG Shinji SATO Takuichi HIRANO Ning LI Takeshi INOUE Hitoshi SAKANE Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/04/01
Vol. E98-C  No. 4  pp. 304-314
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design---Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
60-GHz transmitterCMOSon-chip antennahelium-3 ion irradiationshort-rangehigh-data-rate
 Summary | Full Text:PDF(2.2MB)

Millimeter-Wave Propagation Characteristics and Localized Rain Effects in a Small-Scale University Campus Network in Tokyo
Hung V. LE Hasan Md. MOHIBUL Takuichi HIRANO Toru TANIGUCHI Akira YAMAGUCHI Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/05/01
Vol. E97-B  No. 5  pp. 1012-1021
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
millimeter-waverain attenuationlocalized rainspatial variability of rainfalldiversity
 Summary | Full Text:PDF(4.7MB)

A Wideband 16×16-Element Corporate-Feed Hollow-Waveguide Slot Array Antenna in the 60-GHz Band
Takashi TOMURA Jiro HIROKAWA Takuichi HIRANO Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 798-806
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
corporate feedmillimeter-wave bandwaveguide slot arraywideband
 Summary | Full Text:PDF(3.2MB)

Eigenmode Analysis of Propagation Constant for a Microstrip Line with Dummy Fills on a Si CMOS Substrate
Yuya ONO Takuichi HIRANO Kenichi OKADA Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/06/01
Vol. E94-C  No. 6  pp. 1008-1015
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
silicon CMOSmicrostrip linepropagation constantdummy filleigenmode analysisperiodic structuremillimeter wave
 Summary | Full Text:PDF(1.9MB)

Practical Slot Array Design by Method of Moments Using One Basis Function and Constant Correction Length
Jae-Ho LEE Takuichi HIRANO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 158-165
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
method of moments (MoM)slotted waveguide arrayslot correction lengthslot couplingnarrow and rectangular slot
 Summary | Full Text:PDF(1.7MB)

Design of 1 m2 Order Plasma Excitation Single-Layer Slotted Waveguide Array with Conducting Baffles and Quartz Glass Strips Using the GSM-MoM Analysis
Takuichi HIRANO Kimio SAKURAI Jiro HIROKAWA Makoto ANDO Tetsuya IDE Atsushi SASAKI Kazufumi AZUMA Yukihiko NAKATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/05/01
Vol. E89-B  No. 5  pp. 1627-1635
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
slotted waveguide arraysunit cellplasmageneralized scattering matrix methodmethod of momentsbaffles
 Summary | Full Text:PDF(1.4MB)

Large-Size Local-Domain Basis Functions with Phase Detour and Fresnel Zone Threshold for Sparse Reaction Matrix in the Method of Moments
Tetsu SHIJO Takuichi HIRANO Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2208-2215
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: EM Analysis
Keyword: 
method of momentsphysical opticsmethod of stationary phaseFresnel zone thresholdbasis functions
 Summary | Full Text:PDF(1.9MB)

A Design of a Leaky Waveguide Crossed-Slot Linear Array with a Matching Element by the Method of Moments with Numerical-Eigenmode Basis Functions
Takuichi HIRANO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1219-1226
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
crossed-slotslotted leaky waveguide arrayscircularly polarized wavefinite element methodmethod of momentseigenmode basis functions
 Summary | Full Text:PDF(1.5MB)

Analysis of a Waveguide with a Round-Ended Wide Straight Slot by the Method of Moments Using Numerical-Eigenmode Basis Functions
Miao ZHANG Takuichi HIRANO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2319-2326
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
round-ended slotwaveguidenumerical eigenmode basis functionsMethod of Momentsfinite element methodequivalent-area modification
 Summary | Full Text:PDF(1004.9KB)

A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot
Kaoru SUDO Takuichi HIRANO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/10/01
Vol. E86-B  No. 10  pp. 3063-3070
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
solar power satelliteradial line slot antennafeedercrossed slotmethod of momentsnumerical eigenmode basis function
 Summary | Full Text:PDF(1.6MB)