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Kunio SAWAYA

Forward-Nulling Passive Millimeter Wave Imaging Using Cooling Dielectric Tube Hiroyasu SATO Kohei KURIYAMA Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2012/10/01 Vol. E95-C No. 10 pp. 1627-1634 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies) Category: Keyword: passive millimeter wave imaging (PMMW), incoherent, cooling dielectric tube, parabolic cylinder, noise source,
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Statistical Analysis of Huge-Scale Periodic Array Antenna Including Randomly Distributed Faulty Elements Keisuke KONNO Qiang CHEN Kunio SAWAYA Toshihiro SEZAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/10/01 Vol. E94-C No. 10 pp. 1611-1617 Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology) Category: Microwave and Millimeter-Wave Antennas Keyword: Method of Moments (MoM), impedance extension method (IEM), local admittance compensation (LAC), array antenna,
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High Gain Antipodal Fermi Antenna with Low Cross Polarization Hiroyasu SATO Yukiko TAKAGI Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/08/01 Vol. E94-B No. 8 pp. 2292-2297 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: tapered slot antenna, TSA, Fermi antenna, broadband antenna, UWB antenna,
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Numerical Analysis on MIMO Performance of the Modulated Scattering Antenna Array in Indoor Environment Lin WANG Qiang CHEN Qiaowei YUAN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/06/01 Vol. E94-B No. 6 pp. 1752-1756 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: array antenna, modulation, mobile handsets, nonlinear circuits, Volterra series, MoM, MIMO,
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Ultra-Wideband Array Antenna Utilizing Novel Scanning System with Tapped Delay Lines for Short Range Radar Fuminori SAKAI Kazuo OHTA Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/05/01 Vol. E94-B No. 5 pp. 1194-1200 Type of Manuscript: Special Section PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies) Category: Antennas and Antenna Measurement Keyword: array antenna, delay line, impulse, scanning antenna, ultra-wideband,
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Three-Dimensional Electromagnetic Scattering Analysis Using Constrained Interpolation Profile Method Jerdvisanop CHAKAROTHAI Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/10/01 Vol. E93-B No. 10 pp. 2619-2628 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009) Category: Electromagnetic Analysis Keyword: electromagnetic scattering analysis, scattering cross section, CIP method, FDTD method, Mie,
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Quantitative Evaluation for Computational Cost of CG-FMM on Typical Wiregrid Models Keisuke KONNO Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/10/01 Vol. E93-B No. 10 pp. 2611-2618 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009) Category: Electromagnetic Analysis Keyword: Method of Moments (MoM), conjugate gradient, fast multipole method,
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Experimental Study on MIMO Performance of Modulated Scattering Antenna Array in Indoor Environment Lin WANG Qiang CHEN Qiaowei YUAN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/03/01 Vol. E93-B No. 3 pp. 679-684 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: antenna, antenna array, modulation, wireless communications, mobile handset, MIMO,
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Analysis of Huge-Scale Periodic Array Antenna Using Impedance Extension Method Keisuke KONNO Qiang CHEN Kunio SAWAYA Toshihiro SEZAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/12/01 Vol. E92-B No. 12 pp. 3869-3874 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: Method of Moments(MoM), impedance extension method, huge periodic array antenna,
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Impedance Analysis of Printed Antenna on Three-Dimensional High-Permittivity Dielectric Substrate Using Mixed-Domain MoM Amin SAEEDFAR Hiroyasu SATO Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/06/01 Vol. E92-B No. 6 pp. 2352-2355 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: volume integral equation, mixed-domain MoM, dielectric substrate, printed antenna, legendre expansion, FDTD method,
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Accuracy and Stability Enhancement of Hybrid-Domain MoM Solution for Volume Scattering Problems Using Legendre Expansion Amin SAEEDFAR Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/12/01 Vol. E91-B No. 12 pp. 4062-4066 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: tensor-volume integral equation, hybrid-domain MoM, legendre polynomials,
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Current Estimation on Multi-Layer Printed Circuit Board with Lumped Circuits by Near-Field Measurement Sumito KATO Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/11/01 Vol. E91-B No. 11 pp. 3788-3791 Type of Manuscript: LETTER Category: Electromagnetic Compatibility(EMC) Keyword: measurement, current distribution, near-field, PCB, lumped circuit,
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Experimental Study on MUSIC-Based DOA Estimation by Using Universal Steering Vector Qiaowei YUAN Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/05/01 Vol. E91-B No. 5 pp. 1575-1580 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: MUSIC, direction of arrival, array antenna, array element pattern, mutual coupling, steering vector, MoM,
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Numerical and Experimental Impedance Analyses of Dipole Antenna in the Vicinity of Deionized Water at Different Temperatures Amin SAEEDFAR Hiroyasu SATO Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/03/01 Vol. E91-B No. 3 pp. 963-967 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: tensor-volume integral equation, Pocklington's integral equation, mixed-domain MoM, high-permittivity scatterers, FDTD method,
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Numerical Investigation of Channel Capacity of Indoor MIMO System Xiao Peng YANG Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/09/01 Vol. E90-B No. 9 pp. 2338-2343 Type of Manuscript: Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation) Category: Propagation Keyword: MIMO, channel capacity, indoor channel, hybrid methods, reflection coefficient, effective multipaths,
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SAR Investigation of Array Antennas for Mobile Handsets Qiang CHEN Yasunori KOMUKAI Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/06/01 Vol. E90-B No. 6 pp. 1354-1356 Type of Manuscript: Special Section LETTER (Special Section on 2nd Pan-Pacific EMC Joint Meeting--PPEMC'06--) Category: Keyword: antennas, arrays, mobile antennas, mobile communication, SAR, biological effects of electromagnetic radiation,
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Investigation of Wall Effect on Indoor MIMO Channel Capacity by Using MoM-FDTD Hybrid Technique Xiao Peng YANG Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/05/01 Vol. E90-B No. 5 pp. 1201-1207 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: MIMO, channel capacity, hybrid method, MoM, FDTD, Ricean K factor, effective degrees of freedom (EDOF),
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Preconditioners for CG-FMM-FFT Implementation in EM Analysis of Large-Scale Periodic Array Antennas Huiqing ZHAI Qiaowei YUAN Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/03/01 Vol. E90-B No. 3 pp. 707-710 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: large-scale periodic array antenna, method of moments (MoM), fast multipole method (FMM), fast Fourier transform (FFT), preconditioner,
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Effects of Wall Reflection on Indoor MIMO Channel Capacity Xiao Peng YANG Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/03/01 Vol. E90-B No. 3 pp. 704-706 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: MIMO, channel capacity, indoor channel, hybrid method, reflection coefficient,
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Improved Solution of Tensor-Volume Integral Equation Using Mixed-Domain MoM with Polynomial Expansion Amin SAEEDFAR Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/03/01 Vol. E90-B No. 3 pp. 607-620 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: Tensor-Volume Integral Equation, mixed-domain MoM, dielectric scatterer, thin-wire antenna, polynomial expansion,
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Numerical Analysis of Wall Material Effect on Indoor MIMO Channel Capacity Xiao Peng YANG Qiang CHEN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/10/01 Vol. E89-B No. 10 pp. 2949-2951 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: MIMO, channel capacity, indoor channel, hybrid method, Ricean K factor, effective degrees of freedom (EDOF),
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Analysis of Large-Scale Periodic Array Antennas by CG-FFT Combined with Equivalent Sub-Array Preconditioner Huiqing ZHAI Qiang CHEN Qiaowei YUAN Kunio SAWAYA Changhong LIANG
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/03/01 Vol. E89-B No. 3 pp. 922-928 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: large-scale periodic phased arrays, method of moments (MoM), block Toeplitz matrices, conjugate-gradient fast Fourier transform (CG-FFT), preconditioner of iterative method,
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Estimation of Multiple Coherent Source Locations by Using SPM Method Combined with Signal Subspace Fitting Technique Yuzo YOSHIMOTO Kazumasa TAIRA Kunio SAWAYA Risaburo SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/08/01 Vol. E88-B No. 8 pp. 3164-3169 Type of Manuscript: Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility) Category: Measurements Keyword: EMC, electric field, SPM method, WSF method, calibration, estimation of electromagnetic source location,
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Experimental Study on Compensation of Array Element Pattern of Collinear Dipole Array Sensor Kyosuke AWAI Kazumasa TAIRA Kunio SAWAYA Risaburo SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/08/01 Vol. E88-B No. 8 pp. 3314-3316 Type of Manuscript: Special Section LETTER (Special Section of 2004 International Symposium on Electromagnetic Compatibility) Category: Keyword: array sensor, array element pattern, mutual coupling, compensation factor, estimation of electromagnetic source location,
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Estimation of Short Range Multiple Coherent Source Location by Using MUSIC Algorithm Takashi KATO Kazumasa TAIRA Kunio SAWAYA Risaburo SATO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/08/01 Vol. E88-B No. 8 pp. 3317-3320 Type of Manuscript: Special Section LETTER (Special Section of 2004 International Symposium on Electromagnetic Compatibility) Category: Keyword: MUSIC algorithm, estimation of source location, direction of arrival, multiple coherent sources,
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Series-Fed Beam-Scanning Antenna Employing Multi-Stage Configured Microstrip Antennas with Tunable Reactance Devices Naoki HONMA Tomohiro SEKI Kenjiro NISHIKAWA Koichi TSUNEKAWA Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/06/01 Vol. E88-B No. 6 pp. 2297-2304 Type of Manuscript: Special Section PAPER (Special Section on 2004 International Symposium on Antennas and Propagation) Category: Keyword: tunable reactance device, microstrip antenna, beam scanning, multi-stage, traveling wave,
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Convergence of SOR in MoM Analysis of Array Antenna Qiang CHEN Qiaowei YUAN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/05/01 Vol. E88-B No. 5 pp. 2220-2223 Type of Manuscript: LETTER Category: Antennas and Propagation Keyword: antenna, array antennas, method of moments, matrix equation, SOR, iterative method,
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Antenna Design by Using Method of Moments Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/05/01 Vol. E88-B No. 5 pp. 1766-1773 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation Researches--Selected Papers Translated from the IEICE Transactions on Communications (Japanese Edition)--) Category: INVITED Keyword: method of moments, electromagnetic field, antenna, numerical analysis, scattering,
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Reduction of the Induction Field on Overhead Transmission Lines Caused by Resonance with an MF Broadcast Wave by Using the Method of Selecting Grounding Points Takayuki SASAMORI Teruo TOBANA Kohshi ABE Kunio SAWAYA Saburo ADACHI Kohji ARITA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/09/01 Vol. E86-B No. 9 pp. 2745-2752 Type of Manuscript: PAPER Category: Electromagnetic Compatibility(EMC) Keyword: MF radio induction on grounded power line, EMI, method of moments,
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FOREWORD Kunio SAWAYA Takayasu SHIOKAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/03/01 Vol. E86-B No. 3 pp. 891-891 Type of Manuscript: FOREWORD Category: Keyword:
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Review of Research and Development on Linear Antennas Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/03/01 Vol. E86-B No. 3 pp. 892-899 Type of Manuscript: INVITED PAPER (Special Issue on Historical Review of Antenna Systems in Japan) Category: Keyword: Yagi-Uda antenna, self-complementary antenna, loop antenna, spiral antenna, helical antenna,
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Accurate Source Model for MoM Analysis of Linear Antennas by Using Sinusoidal Reaction Matching Technique Qiang CHEN Qiaowei YUAN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/02/01 Vol. E86-B No. 2 pp. 870-872 Type of Manuscript: LETTER Category: Antenna and Propagation Keyword: method of moment, source model, feed, linear antenna,
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Fast Algorithm for Solving Matrix Equation in MoM Analysis of Large-Scale Array Antennas Qiang CHEN Qiaowei YUAN Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2002/11/01 Vol. E85-B No. 11 pp. 2482-2488 Type of Manuscript: PAPER Category: Antenna and Propagation Keyword: antenna, antenna array, moment method, matrix equation, iterative method,
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Numerical Techniques for Analysis of Electromagnetic Problems Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2000/03/20 Vol. E83-B No. 3 pp. 444-452 Type of Manuscript: INVITED PAPER (Special Issue on Recent Progress in Electromagnetic Compatibility Technology) Category: Keyword: method of moment, thin wire approximation, wire/surface junction, dielectric body, finite difference time domain method, dispersive medium, absorbing boundary condition,
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Measurement of Power Absorption by Human Model in the Vicinity of Antennas Qiang CHEN Takayuki SHINOHE Kazuhisa IGARI Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1997/05/20 Vol. E80-B No. 5 pp. 709-711 Type of Manuscript: Special Section LETTER (Special Issue on EMC/EMI Problems in Microwave Frequency Range) Category: Keyword: absorption of electromagnetic power, radiation efficiency, antenna, measurement, EMC,
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FOREWORD Yoji NAGASAWA Kunio SAWAYA Yoshio KAMI Kohji KOSHIJI Youji KOTSUKA Takashi SHINOZUKA Masao TAKI Toshio NOJIMA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1997/05/20 Vol. E80-B No. 5 pp. 643-644 Type of Manuscript: FOREWORD Category: Keyword:
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FOREWORD Kunio SAWAYA Koichi ITO Fujio AMEMIYA Kazuhiro IINUMA Takuro KISHIMOTO Koichi SHIMIZU Itsuo YAMAURA Toshio WAKABAYASHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1995/06/20 Vol. E78-B No. 6 pp. 787-788 Type of Manuscript: FOREWORD Category: Keyword:
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Relationship between SAR of Eyeball and Position of Feeding Point of MRI Antenna Hisaaki OCHI Etsuji YAMAMOTO Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1995/06/20 Vol. E78-B No. 6 pp. 859-861 Type of Manuscript: Special Section LETTER (Special Issue on Medical Applications of Electromagnetic Techniques) Category: Keyword: MRI antenna, realistic head model, SAR, sensitivity,
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A Method for Measuring Surface Impedance of Superconductor and Dielectric Characteristics of Substrate by Using Strip Line Resonator Akira TAKETOMI Kunio SAWAYA Saburo ADACHI Shigetoshi OHSHIMA Norihiko YAOI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 1994/08/20 Vol. E77-C No. 8 pp. 1234-1241 Type of Manuscript: Special Section PAPER (Special Section on Superconducting Devices) Category: HTS Keyword: surface impedance, microstrip line resonator, dielectric constant, loss tangent,
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Effect of Dimension of Conducting Box on Radiation Pattern of a Monopole Antenna for Portable Telephone Ryo YAMAGUCHI Kunio SAWAYA Yoshiyuki FUJINO Saburo ADACHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/12/20 Vol. E76-B No. 12 pp. 1526-1531 Type of Manuscript: Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation) Category: Keyword: mobile communication, portable telephone, Galerkin-moment method, Fourier series expansion, monopole antenna,
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Analysis of MRI Slotted Tube Resonator Having a Shield of Conducting Circular Cylinder Qiang CHEN Kunio SAWAYA Saburo ADACHI Hisaaki OCHI Etsuji YAMAMOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/05/20 Vol. E76-B No. 5 pp. 553-560 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: MRI, NMR, slotted tube resonator, shield, antenna, probe,
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FOREWORD Kenichi KAGOSHIMA Takayasu SHIOKAWA Masaharu FUJITA Kunio SAWAYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1991/10/20 Vol. E74-B No. 10 pp. 3189-3190 Type of Manuscript: FOREWORD Category: Keyword:
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