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Masaharu TAKAHASHI

A Non-Connected Decoupling Method for Three Element MIMO Antennas by Using Short Stubs Takuya MIYASAKA Hiroshi SATO Masaharu TAKAHASHI
Publication: Publication Date: 2019/11/01 Vol. E102-B No. 11 pp. 2167-2173 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: MIMO, decoupling, mutual coupling, short stub,
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Localization Method Using Received Signal Strength for Wireless Power Transmission of the Capsule Endoscope Daijiro HIYOSHI Masaharu TAKAHASHI
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1660-1667 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: capsule endoscope, position estimation, received signal strength, wireless power transmission,
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A Dual-Band Decoupling Method of 2 Elements MIMO Antennas by Using a Short Stub and a Branch Element Takuya MIYASAKA Hiroshi SATO Masaharu TAKAHASHI
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1763-1770 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: MIMO, CA, decoupling, dual-band, short stub,
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Analysis of a Wireless Power Transfer System by the Impedance Expansion Method Using Fourier Basis Functions Nozomi HAGA Masaharu TAKAHASHI
Publication: Publication Date: 2018/07/01 Vol. E101-B No. 7 pp. 1708-1715 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: wireless power transfer, method of moments, impedance expansion method, Fourier basis functions,
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Passive Element Approximation of Equivalent Circuits by the Impedance Expansion Method Nozomi HAGA Masaharu TAKAHASHI
Publication: Publication Date: 2018/04/01 Vol. E101-B No. 4 pp. 1069-1075 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: equivalent-circuit modeling, method of moments, impedance expansion method,
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Circuit Modeling Technique for Electrically-Very-Small Devices Based on Laurent Series Expansion of Self-/Mutual Impedances Nozomi HAGA Masaharu TAKAHASHI
Publication: Publication Date: 2018/02/01 Vol. E101-B No. 2 pp. 555-563 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: equivalent circuit modeling, method of moments, impedance expansion method,
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Small Antennas Used in the Vicinity of Human Body Koichi ITO Masaharu TAKAHASHI Kazuyuki SAITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2016/01/01 Vol. E99-B No. 1 pp. 9-18 Type of Manuscript: INVITED PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014) Category: Antennas and Propagation Keyword: wearable antenna, implantable antenna, body-centric wireless communications, RFID, hyperthermia, medical device, human body, phantom,
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Variability of Specific Absorption Rate of Human Body for Various Configurations of Tablet Computer in Vicinity of Abdomen Akihiro TATENO Tomoaki NAGAOKA Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/07/01 Vol. E98-B No. 7 pp. 1173-1181 Type of Manuscript: Special Section PAPER (Special Section on Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'14/Tokyo) Category: Keyword: specific absorption rate (SAR), wireless radio terminals, numerical models of human, finite-difference time-domain (FDTD) method,
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Specific Absorption Rates and Temperature Elevations due to Wireless Radio Terminals in Proximity to a Fetus at Gestational Ages of 13, 18, and 26 Weeks Akihiro TATENO Shimpei AKIMOTO Tomoaki NAGAOKA Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/10/01 Vol. E97-B No. 10 pp. 2175-2183 Type of Manuscript: PAPER Category: Electromagnetic Compatibility(EMC) Keyword: fetus, specific absorption rate (SAR), temperature elevation, wireless radio terminals, finite-difference time-domain (FDTD) method,
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Magnetic Field Homogeneity of Birdcage Coil for 4T MRI System with No Lumped Circuit Elements Ryotaro SUGA Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/04/01 Vol. E97-B No. 4 pp. 791-797 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: magnetic resonance imaging (MRI), birdcage coil, finite-difference time-domain (FDTD) method, biological tissue-equivalent phantom,
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Design of Miniature Implantable Tag Antenna for Radio-Frequency Identification System at 2.45GHz and Received Power Analysis HoYu LIN Masaharu TAKAHASHI Kazuyuki SAITO Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/01/01 Vol. E97-B No. 1 pp. 129-136 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: RFID, in-body wireless communication, implantable tag antenna, human body phantom, received power,
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Generation of Controllable Heating Patterns for Interstitial Microwave Hyperthermia by Coaxial-Dipole Antennas Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2013/09/01 Vol. E96-C No. 9 pp. 1178-1183 Type of Manuscript: PAPER Category: Electromagnetic Theory Keyword: hyperthermia, microwave heating, internal heating, controllable heating pattern, array applicator,
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Development of RFID Antenna for Detection of Urination Hiromasa NAKAJIMA Masaharu TAKAHASHI Kazuyuki SAITO Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/09/01 Vol. E96-B No. 9 pp. 2244-2250 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: biological tissue-equivalent solid phantom, paper diaper, radio frequency identification (RFID), urination, finite-difference time-domain (FDTD) method,
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Small Multi-Band Antenna with Tuning Function for Body-Centric Wireless Communications Chia-Hsien LIN Zhengyi LI Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/10/01 Vol. E95-B No. 10 pp. 3074-3080 Type of Manuscript: Special Section PAPER (Special Section on Medical Information Communication Technology for Disaster Recovery and Human Health Care Support) Category: Keyword: body-centric wireless communications (BCWCs), planar inverted-F antenna (PIFA), industrial-scientific-medical (ISM), WiMAX,
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Experimental Evaluation of SAR around an Implanted Cardiac Pacemaker Caused by Mobile Radio Terminal Yuta ENDO Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/06/01 Vol. E95-B No. 6 pp. 2129-2132 Type of Manuscript: LETTER Category: Electromagnetic Compatibility(EMC) Keyword: implanted cardiac pacemaker, SAR, phantom, FDTD, PIFA,
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Proper Derivation of Equivalent-Circuit Expressions of Intra-Body Communication Channels Using Quasi-Static Field Nozomi HAGA Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/01/01 Vol. E95-B No. 1 pp. 51-59 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010) Category: Antennas Keyword: intra-body communications, quasi-static approximation, equivalent circuit, boundary value problem,
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Small Wearable Antenna with Folded Ground for Body-Centric Wireless Communications Zhengyi LI Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/01/01 Vol. E95-B No. 1 pp. 109-112 Type of Manuscript: Special Section LETTER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010) Category: Antennas Keyword: wearable antenna, folded ground, body-centric wireless communications, planar inverted-F antenna,
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Theoretical Estimation of Scattering Waves in Transverse Section of Upper Body for On-Body Wireless Communications Changyong SEO Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/10/01 Vol. E93-B No. 10 pp. 2601-2610 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: lossy-dielectric circular cylinder, on-body wireless communications, scattering waves,
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Simple Switched-Beam Array Antenna System for Mobile Satellite Communications BASARI M. Fauzan E. PURNOMO Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/12/01 Vol. E92-B No. 12 pp. 3861-3868 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: antenna system, ETS-VIII, satellite-tracking, microstrip patch array antenna, outdoor measurement,
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Realization of Simple Antenna System Using ETS-VIII Satellite for Land Vehicle Communications BASARI M. Fauzan E. PURNOMO Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/11/01 Vol. E92-B No. 11 pp. 3375-3383 Type of Manuscript: Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008) Category: Keyword: antenna system, land vehicle satellite communication, ETS-VIII, satellite-tracking, field experiment,
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SAR Computation inside Fetus by RF Coil during MR Imaging Employing Realistic Numerical Pregnant Woman Model Satoru KIKUCHI Kazuyuki SAITO Masaharu TAKAHASHI Koichi ITO Hiroo IKEHIRA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/02/01 Vol. E92-B No. 2 pp. 431-439 Type of Manuscript: Special Section PAPER (Special Section on Medical Information and Communications Technologies) Category: Keyword: magnetic resonance imaging (MRI), birdcage coil, pregnant woman, fetus, specific absorption rate (SAR),
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A Circular Aperture Array Configuration with a Small Antenna Radius Takanori NORO Yasuhiro KAZAMA Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/09/01 Vol. E90-B No. 9 pp. 2271-2279 Type of Manuscript: Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation) Category: Antennas Keyword: array configuration, uniform arrangement, patch antennas helical antennas,
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Circularly Polarized Printed Antenna Combining Slots and Patch Toshimitsu TANAKA Tamotsu HOUZEN Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/03/01 Vol. E90-B No. 3 pp. 621-629 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: dual-band, patch antenna, slot antenna, circular polarization, electromagnetically coupled microstrip line feed,
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Simple Modeling of an Abdomen of Pregnant Women and Its Application to SAR Estimation Hiroki KAWAI Koichi ITO Masaharu TAKAHASHI Kazuyuki SAITO Takuya UEDA Masayoshi SAITO Hisao ITO Hisao OSADA Yoshio KOYANAGI Koichi OGAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/12/01 Vol. E89-B No. 12 pp. 3401-3410 Type of Manuscript: PAPER Category: Electromagnetic Compatibility(EMC) Keyword: fetus, pregnant women, amniotic fluid, SAR, FDTD method,
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Circularly Polarized Rounded-Off Triangular Microstrip Line Array Antenna David DELAUNE Josaphat Tetuko SRI SUMANTYO Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/04/01 Vol. E89-B No. 4 pp. 1372-1381 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: microstrip line antenna, circular polarization, triangular shape, rounded vertex, array configuration, beam-switching, mobile satellite communications,
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Biological Tissue-Equivalent Agar-Based Solid Phantoms and SAR Estimation Using the Thermographic Method in the Range of 3-6 GHz Teruo ONISHI Ryo ISHIDO Takuya TAKIMOTO Kazuyuki SAITO Shinji UEBAYASHI Masaharu TAKAHASHI Koichi ITO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/09/01 Vol. E88-B No. 9 pp. 3733-3741 Type of Manuscript: PAPER Category: Electromagnetic Compatibility(EMC) Keyword: solid phantom, broadband, FDTD method, SAR, thermographic method, heat conduction equation,
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Study on the Transmission Mechanism for Wearable Device Using the Human Body as a Transmission Channel Katsuyuki FUJII Masaharu TAKAHASHI Koichi ITO Keisuke HACHISUKA Yusuke TERAUCHI Yoshinori KISHI Ken SASAKI Kiyoshi ITAO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/06/01 Vol. E88-B No. 6 pp. 2401-2410 Type of Manuscript: Special Section PAPER (Special Section on 2004 International Symposium on Antennas and Propagation) Category: Keyword: personal area network, intra-body communication, human body, phantom, FDTD,
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Data Compression by Context Sorting Hidetoshi YOKOO Masaharu TAKAHASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1996/05/25 Vol. E79-A No. 5 pp. 681-686 Type of Manuscript: PAPER Category: Information Theory and Coding Theory Keyword: data compression, context sorting, universal coding, rank coding,
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Slot Design of a Concentric Array Radial Line Slot Antenna with Matching Slot Pairs Masao UENO Seiji HOSONO Masaharu TAKAHASHI Kimio SAKURAI Makoto ANDO Naohisa GOTO Yasuhiko YOSHIDA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1996/01/25 Vol. E79-B No. 1 pp. 70-76 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: antennas, array, RLSA, CA-RLSA, matching slot pair,
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Enhancement of Band-Edge Gain in Radial Line Slot Antennas Using the Power Divider--A Wide-Band Radial Line Slot Antenna-- Tetsuya YAMAMOTO Masaharu TAKAHASHI Makoto ANDO Naohisa GOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1995/03/25 Vol. E78-B No. 3 pp. 398-406 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: RLSA, planar antenna, hybrid structure, power divider, wide-band, waveguide, long line effect,
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An Analysis of the Rotational Symmetry of the Inner Field of Radial Line Slot Antennas Masaharu TAKAHASHI Makoto ANDO Naohisa GOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1994/10/25 Vol. E77-B No. 10 pp. 1256-1263 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: RLSA, radial waveguide, planar antenna, method of moment, rotational symmetry, inner field,
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Aperture Illumination Control in Radial Line Slot Antennas Masaharu TAKAHASHI Jun-ichi TAKADA Makoto ANDO Naohisa GOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/07/25 Vol. E76-B No. 7 pp. 777-783 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: RLSA, planar antenna, BS, wave-guide array, radial wave-guide,
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