Ikuo AWAI


Proposal of a New Disk-Repeater System for Contactless Power Transfer
Yuichi SAWAHARA Yuya IKUTA Yangjun ZHANG Toshio ISHIZAKI Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/12/01
Vol. E98-B  No. 12  pp. 2370-2375
Type of Manuscript:  Special Section PAPER (Special Section of Position Papers Exploring Innovative Intelligence and Technologies in Communications, Part II)
Category: 
Keyword: 
Disk-repeatersimple structureelectric couplingtwo-dimensional arrangementcontactless power transfernon-resonant structure
 Summary | Full Text:PDF(2.5MB)

Wide Band Spurious Suppression of Multi-Strip Resonator BPF -- Comprehensive Way to Suppress Spurious Responses in BPFs --
Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 942-948
Type of Manuscript:  INVITED PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
spurious suppressionmulti-strip resonatorBPFLTCC structure
 Summary | Full Text:PDF(1MB)

Artificial Dielectric Resonator Made of Spherical Metal Particles
Ikuo AWAI Osamu MIZUE Arun Kumar SAHA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/01/01
Vol. E92-C  No. 1  pp. 72-76
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and its Application)
Category: 
Keyword: 
artificial dielectricresonatorpermittivitydiamagnetismspurious property
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Principles of Time Domain Calculus of Microwave Resonator Parameters
Ikuo AWAI Yangjun ZHANG Tetsuya ISHIDA Tsuyoshi SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/12/01
Vol. E90-C  No. 12  pp. 2198-2204
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies for Microwave and Millimeter-wave Passive Devices)
Category: 
Keyword: 
resonatortime domain calculationresonant frequencyexternal Qunloaded Qcoupling coefficient
 Summary | Full Text:PDF(929.7KB)

FOREWORD
Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/09/01
Vol. E89-C  No. 9  pp. 1265-1266
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(61.1KB)

Modal Analysis of Finite-Thickness Slab with Single-Negative Tensor Material Parameters
Masashi HOTTA Mitsuo HANO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/09/01
Vol. E89-C  No. 9  pp. 1283-1290
Type of Manuscript:  Special Section PAPER (Special Section on Metamaterials for Microwave and Millimeter-Wave Applications)
Category: 
Keyword: 
metamaterialanisotropysingle-negative materialtensor material parametermagnetostatic wave
 Summary | Full Text:PDF(856.3KB)

New Expressions for Coupling Coefficient between Resonators
Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2295-2301
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: Devices
Keyword: 
resonatorcoupling coefficientcoupled-mode theoryperturbation methodoverlap integralenergy exchangeresonant frequency
 Summary | Full Text:PDF(542.2KB)

Surface Waves along a Boundary of Single Negative Material
Masashi HOTTA Mitsuo HANO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/02/01
Vol. E88-C  No. 2  pp. 275-278
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
surface wavemetamaterialnegative permeabilitynegative permittivitydirectional coupler
 Summary | Full Text:PDF(329KB)

Artificial Dielectric Rectangular Resonator with Novel Anisotropic Permittivity and Its TE10δ Mode Waveguide Filter Application
Achmad MUNIR Noriaki HAMANAGA Hiroshi KUBO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/01/01
Vol. E88-C  No. 1  pp. 40-46
Type of Manuscript:  Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
Category: 
Keyword: 
anisotropic permittivityartificial dielectricsbandpass filtercoupling coefficientdielectric resonator
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Improvement of Unloaded Q of Dielectric Image Resonator
Kazuki IWASHITA Ikuo AWAI Hiroshi KUBO Atsushi SANADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/01/01
Vol. E88-C  No. 1  pp. 34-39
Type of Manuscript:  Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
Category: 
Keyword: 
dielectric image resonatorelectromagnetic field distributionresonant frequencyunloaded Q
 Summary | Full Text:PDF(898.5KB)

Unloaded Q of Image-Type Dielectric Resonator: Its New Packaging Method in a Metal Shield
Ikuo AWAI Hiroshi KUBO Yoshihiro ISHII Kazuki IWASHITA Atsushi SANADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1642-1648
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
dielectric resonatorimage-type resonatordielectric lossconductor lossunloaded Q
 Summary | Full Text:PDF(609.8KB)

High-Temperature Superconducting CPW Bandpass Filters Using Meander-Line Parallel-Circuited Resonators
Atsushi SANADA Takahiro HAMAMURA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1729-1736
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
high-temperature superconductorbandpass filtercoplanar waveguide (CPW)meander-linemetalorganic deposition
 Summary | Full Text:PDF(694.8KB)

Control of Spurious Property of a Dielectric Resonator by Its Division
Kazuki IWASHITA Ikuo AWAI Hiroshi KUBO Atsushi SANADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1759-1764
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
dielectric resonatordivisionspurious propertyanisotropy
 Summary | Full Text:PDF(1.2MB)

Pattern Synthesis from Dielectric Rod Waveguides with Variation Sections Considering Surface Variation Sizes
Hiroshi KUBO Masayuki MATSUSHITA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/02/01
Vol. E86-C  No. 2  pp. 184-191
Type of Manuscript:  Special Section PAPER (Special Issue on Circuit and Device Technology for High-Speed Wireless Communication)
Category: Antenna (Dielectric)
Keyword: 
dielectric antennaspattern synthesiswave source distributiongenetic algorithms
 Summary | Full Text:PDF(826.3KB)

Full-Wave Finite-Difference Time-Domain Formulation for Gyromagnetic Ferrite Media Magnetized in Arbitrary Direction
Atsushi SANADA Kensuke OKUBO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 931-936
Type of Manuscript:  Special Section PAPER (Special Issue on Techniques for Constructing Microwave Simulators--Design and Analysis Tools for Electromagnetic Fields, Circuits, and Antennas--)
Category: Electromagnetics Simulation Techniques
Keyword: 
FDTD methodferritemicrowave
 Summary | Full Text:PDF(698.7KB)

Numerical and Experimental Investigation on Quality Factors of Coplanar Waveguide Resonators
Xiangying WU Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/12/25
Vol. E83-C  No. 12  pp. 1923-1929
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
CPW resonatorsSIR structurequality factorfield decay methodFDTD modeling of conductor loss
 Summary | Full Text:PDF(1.2MB)

Design of a Bandpass Filter with Multiple Attenuation Poles Based on Tapped Resonators
Kouji WADA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/07/25
Vol. E82-C  No. 7  pp. 1116-1122
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Passive Devices and Circuits
Keyword: 
multiple attenuation poleshalf-wavelength resonatortap-couplingbandpass filterfilter design
 Summary | Full Text:PDF(967.5KB)

A Study of a Laminated Band Elimination Filter Comprising Coupled-Line Resonators Using Low Temperature Co-Fired Ceramics
Hideyuki MIYAKE Shoichi KITAZAWA Toshio ISHIZAKI Koichi OGAWA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/07/25
Vol. E82-C  No. 7  pp. 1104-1109
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Passive Devices and Circuits
Keyword: 
band elimination filtercoupled-line resonatorslaminated filterLTCC
 Summary | Full Text:PDF(1.3MB)

Distributed Coupling of Dual-Modes in a Circular Resonator and Low-Profile Dielectric Disk Resonator BPF
Ikuo AWAI Arun Chandra KUNDU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/02/25
Vol. E82-C  No. 2  pp. 393-401
Type of Manuscript:  PAPER
Category: Microwave and Millimeter Wave Technology
Keyword: 
distributed couplingdual-modehigh permittivity dielectricdisk resonatorlow-profile filtertransmission line model
 Summary | Full Text:PDF(639.9KB)

Characteristics of Short-Ended Coplanar Waveguide Resonator with Low Spurious Response and Its Application to a Bandpass Filter
Kouji WADA Yasuo IWAMOTO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/01/25
Vol. E82-C  No. 1  pp. 126-132
Type of Manuscript:  PAPER
Category: Microwave and Millimeter Wave Technology
Keyword: 
coplanar waveguideshort-ended resonatorbandpass filterlow spurious response
 Summary | Full Text:PDF(981.6KB)

General Theory of a Circular Dual-Mode Resonator and Filter
Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/11/25
Vol. E81-C  No. 11  pp. 1757-1763
Type of Manuscript:  PAPER
Category: Microwave and Millimeter Wave Technology
Keyword: 
circular resonatordual modering resonatorattenuation poleeven and odd modes
 Summary | Full Text:PDF(451.2KB)

Superconducting Coplanar Filters with Attenuation Poles
Tomohiko KANEYUKI Haruichi KANAYA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/08/25
Vol. E81-C  No. 8  pp. 1366-1367
Type of Manuscript:  LETTER
Category: Microwave and Millimeter Wave Technology
Keyword: 
superconductorYBCO filmcoplanar waveguidebandpass filterattenuation pole
 Summary | Full Text:PDF(112.4KB)

Basic Characteristics of a Quarter-Wavelength CPW Resonator with Tap-Feed Structure and Its Application to a Bandpass Filter with Attenuation Poles
Kouji WADA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/06/25
Vol. E81-C  No. 6  pp. 924-933
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Module Technology)
Category: Passive Element
Keyword: 
coplanar waveguidequarter-wavelength resonatortap-feedcombline filter
 Summary | Full Text:PDF(724.2KB)

A Study on Vertically Installed Planar (VIP) Combline Bandpass Filters via 3D-FDTD Method
Chuandong ZHAO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/04/25
Vol. E81-C  No. 4  pp. 602-607
Type of Manuscript:  PAPER
Category: Components
Keyword: 
VIP structurecombline BPF3D-FDTDversatile bandwidth controlattenuation poles
 Summary | Full Text:PDF(461.6KB)

Numerical Analysis of Dielectric Rod Waveguide with Corrugation of Nonintegral-Ratio Period Waves
Hiroshi KUBO Kimihisa FUKUSHIMA Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/10/25
Vol. E78-C  No. 10  pp. 1402-1408
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
dielectric rod waveguidecorrugationradiation patternnumerical analysiselectromagnetic theorymicrowave and millimeter wave technology
 Summary | Full Text:PDF(557.1KB)

A Dual Mode Dielectric Waveguide Resonator and Its Application to Bandpass Filters
Ikuo AWAI Takeharu YAMASHITA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1018-1025
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
dual modedielectric waveguide resonatorhigh permittivitybandpass filter
 Summary | Full Text:PDF(499.8KB)