Researcher Database

HAGA Nozomi
Department of Electronics and Infomatics, Mathematics and Physics
Assistant Professor
Last Updated :2022/05/12

Researcher Profile and Settings

Researcher

  • Name

    HAGA Nozomi

Profile and Settings

  • Name

    Haga, Nozomi

Foreign language

  • Use in presentation

    English
  • Use in publication

    English

Education

  • Apr. 2007, Mar. 2012, Chiba University
  • Apr. 2003, Mar. 2007, Chiba University, Faculty of Engineering

Degree

  • Ph.D.

Association Memberships

  • The institute of Electronics
  • Information and Communication Engineers
  • The Institute of Electrical and Electronics Engineers
  • IEEE

Research Experience

  • Apr. 2013, 9999, Gunma University, Graduate School of Science and Technology
  • Apr. 2012, Mar. 2013, Gunma University
  • 2012, 2013, Graduate school of Engineering, Gunma University
  • 2013, - Faculty of Science and Technology, Gunma University

Research Activities

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electrical power engineering
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Communication and network engineering

Published Papers

  • Circuit modeling of a wireless power transfer system containing ferrite shields using an extended impedance expansion method, Nozomi Haga, Jerdvisanop Chakarothai, and Keisuke Konno, May 2022, IEEE Transactions on Microwave Theory and Techniques, 70, 5, 2872, 2881, Scientific journal
  • Circuit modeling of wireless power transfer system in the vicinity of perfectly conducting scatterer, Nozomi Haga, Jerdvisanop Chakarothai, and Keisuke Konno, Dec. 2020, IEICE Transactions on Communications, E103-B, 12, 1411, 1420, Scientific journal
  • Notes on EFIE-PMCHWT formulation for feeding gaps on printed conductors, Nozomi Haga, Keisuke Konno, and Jerdvisanop Chakarothai, Dec. 2020, IEEE Antennas and Wireless Propagation Letters, 19, 12, 2028, 2032, Scientific journal
  • Modal impedance expansion method using loop-star basis functions, Nozomi Haga and Masaharu Takahashi, Aug. 2019, IEEE Antennas and Wireless Propagation Letters, 18, 8, 1601, 1605, Scientific journal
  • Circuit modeling of a wireless power transfer system by eigenmode analysis based on the impedance expansion method, Nozomi Haga and Masaharu Takahashi, Feb. 2019, IEEE Transactions on Antennas and Propagation, 67, 2, 1233, 1245, Scientific journal
  • Analysis of a wireless power transfer system by the impedance expansion method using Fourier basis functions, Nozomi Haga and Masaharu Takahashi, Jul. 2018, IEICE Transactions on Communications, E101-B, 7, 1708, 1715, Scientific journal
  • Passive element approximation of equivalent circuits by the impedance expansion method, Nozomi Haga and Masaharu Takahashi, Apr. 2018, IEICE Transactions on Communications, E101-B, 4, 1069, 1075, Scientific journal
  • Circuit modeling technique for electrically-very-small devices based on Laurent series expansion of self-/mutual impedances, Nozomi Haga and Masaharu Takahashi, Feb. 2018, IEICE Transactions on Communications, E101-B, 2, 555, 563, Scientific journal
  • Statistical modeling of intrabody communication channels in various grounding conditions, Nozomi Haga, Yusaku Kasahara, and Kuniyuki Motojima, Jun. 2017, IEICE Communications Express, 6, 6, 319, 324, Scientific journal
  • Radiated noise analysis via human body for intra-body communication, Yuki Hayashida, Mari Hasegawa, Akito Suzuki, Mitsuru Shinagawa, Yuichi Kado, and Nozomi Haga, Jul. 2016, Measurement, 89, 159, 165, Scientific journal
  • Dynamic measurements of intrabody communication channels and their dependences on grounding conditions, Nozomi Haga, Yusaku Kasahara, and Kuniyuki Motojima, Jun. 2016, IEICE Transactions on Communications, E99-B, 6, 1380, 1385, Scientific journal
  • Equivalent-circuit expression of environmental noise electric fields in intrabody communication channels, Nozomi Haga, Kuniyuki Motojima, Mitsuru Shinagawa, and Yuichi Kado, Feb. 2016, IEEE Transactions on Electromagnetic Compatibility, 58, 1, 294, 306, Scientific journal
  • A note on signal paths in intrabody communication channels, Nozomi Haga, Kuniyuki Motojima, Mitsuru Shinagawa, and Yuichi Kado, Jun. 2015, IEICE Electronics Express, 12, 12, 20150402, Scientific journal
  • Received noise voltage of wearable transceiver in the presence of fluorescent lamps using high-frequency electronic ballasts, Nozomi Haga, Kuniyuki Motojima, Mitsuru Shinagawa, and Yuichi Kado, Nov. 2014, IEICE Electronics Express, 11, 21, 20140920, Scientific journal
  • System of equations describing charges of multiple conductors immersed in electrostatic fields, Nozomi Haga, Kuniyuki Motojima, Mitsuru Shinagawa, and Yuichi Kado, Oct. 2014, IEICE Electronics Express, 11, 19, 20140803, Scientific journal
  • Stochastic relation between anomalous propagation in the line-of-sight VHF radio band and occurrences of earthquakes, Kuniyuki Motojima and Nozomi Haga, Aug. 2014, Natural Hazards and Earth System Sciences, 14, 8, 2119, 2124, Scientific journal
  • Equivalent circuit of intrabody communication channels inducing conduction currents inside the human body, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, May 2013, IEEE Transactions on Antennas and Propagation, 61, 5, 2807, 2816, Scientific journal
  • Evaluations of body-centric wireless communication channels in a range from 3 MHz to 3 GHz, Koichi Ito, Nozomi Haga, Masaharu Takahashi, and Kazuyuki Saito, Jul. 2012, Proceedings of the IEEE, 100, 7, 2356, 2363, Scientific journal
  • Proper derivation of equivalent-circuit expressions of intra-body communication channels using quasi-static field, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, Jan. 2012, IEICE Transactions on Communications, E95-B, 1, 51, 59, Scientific journal
  • Characteristics of cavity slot antenna for body-area networks, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, Apr. 2009, IEEE Transactions on Antennas and Propagation, 57, 4, 837, 843, Scientific journal

Books etc

  • Antennas and Propagation for Body-Centric Wireless Communications, Second Edition, Artech House, 2012, ISBN: 9781608073764

Presentations

  • Impedance expansion method ---a circuit modeling technique for electrically-very-small wireless systems---, Nozomi Haga, International Conference on Technology and Social Science 2018, Apr. 2018, English, International conference
  • Analysis of a wireless power transfer system using the impedance expansion method, Nozomi Haga, International Conference on Mechanical, Electrical and Medical Intelligent System 2017, Nov. 2017, English, International conference
  • Circuit modeling of a wireless power transfer system using the impedance expansion method, Nozomi Haga, International Conference on Mechanical, Electrical and Medical Intelligent System 2017, Nov. 2017, English, International conference
  • Equivalent-circuit modeling of electrically-very-small wireless systems, Nozomi Haga, International Conference on Technology and Social Science 2017, May 2017, English, International conference
  • Statistical model of intrabody communication channels, Nozomi Haga, Yusaku Kasahara, and Kuniyuki Motojima, International Conference on Technology and Social Science 2017, May 2017, English, International conference
  • Dynamic characteristics of intrabody communication channels, Nozomi Haga, Yusaku Kasahara, and Kuniyuki Motojima, 2016 International Symposium on Antennas and Propagation (ISAP 2016), pp. 988-989, Oct. 2016, English, International conference
  • Noise measurement via human body for intra-body communication, Yuki Hayashida, Mari Hasegawa, Akito Suzuki, Mitsuru Shinagawa, Yuichi Kado, and Nozomi Haga, 10th EAI International Conference on Body Area Networks (BodyNets'15), pp. 216-220, Sep. 2015, English, International conference
  • Capacitance model of embedded transceiver for intra-body communication, Yuki Hayashida, Ryo Sugiyama, Yusuke Ido, Akito Suzuki, Yasuaki Takizawa, Mitsuru Shinagawa, Yuichi Kado, and Nozomi Haga, 9th International Conference on Body Area Networks (BodyNets '14), pp. 222-228, Sep. 2014, English, International conference
  • Stochastic relation between the line-of-sight VHF propagation and earthquakes, Kuniyuki Motojima and Nozomi Haga, 2014 International Symposium on Electromagnetic Compatibility (EMC'14/Tokyo), pp. 151-154, May 2014, English, International conference
  • Noise sources in equivalent circuits of intrabody communication channels, Nozomi Haga and Kuniyuki Motojima, 2013 International Workshop on Antenna Technology (iWAT2013), pp. 267-270, Mar. 2013, English, International conference
  • Equivalent circuit of intra-body communication channels based on a lossy conductor model, Nozomi Haga and Koichi Ito, 2012 International Symposium on Antennas and Propagation (ISAP 2012), pp. 672-675, Oct. 2012, English, International conference
  • Frequency dependence of power transmission efficiencies between wearable antennas, Koichi Ito, Nozomi Haga, Masaharu Takahashi, and Kazuyuki Saito, 2012 International Workshop on Antenna Technology (iWAT2012), pp. 148-151, Mar. 2012, English, International conference
  • Design of a helical folded dipole antenna for biomedical implants, Hayato Mizuno, Masaharu Takahashi, Kazuyuki Saito, Nozomi Haga, and Koichi Ito, 5th European Conference on Antennas and Propagation (EuCAP 2011), pp. 3640-3643, Apr. 2011, English, International conference
  • Fundamental characteristics of electrodes for intra-body communications, Nozomi Haga and Koichi Ito, 5th European Conference on Antennas and Propagation (EuCAP 2011), pp. 3779-3782, Apr. 2011, English, International conference
  • Basic characteristics of wearable antennas for body-centric wireless communications, Koichi Ito and Nozomi Haga, 2010 Loughborough Antennas and Propagation Conference (LAPC 2010), pp. 42-47, Nov. 2010, English, International conference
  • Analysis of electrodes for body-centric communications, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, 2010 International Symposium on Antennas and Propagation (ISAP 2010), Nov. 2010, English, International conference
  • Frequency dependence of gains between wearable antennas, Nozomi Haga and Koichi Ito, 2010 Asia-Pacific Radio Science Conference (AP-RASC'10), Sep. 2010, English, International conference
  • Wearable antennas for body-centric wireless communications, Koichi Ito and Nozomi Haga, International Conference on Applications of Electromagnetism and Student Innovation Competition Awards (AEM2C 2010), pp. 129-133, Aug. 2010, English, International conference
  • Link characteristics between wearable antenna and receivers equipped on external objects at MHz band, Koichi Ito, Ryotaro Suga, Nozomi Haga, Masaharu Takahashi, and Kazuyuki Saito, 4th European Conference on Antennas and Propagation (EuCAP 2010), Apr. 2010, English, International conference
  • Frequency dependence of on-body channels with top-loaded monopole antennas in the range of HF to UHF, Nozomi Haga and Koichi Ito, Asia-Pacific Microwave Conference 2009 (APMC 2009), pp. 2208-2211, Dec. 2009, English, International conference
  • Numerical simulations of on-body channel in the frequency range of 2.5 MHz to 2.5 GHz, Nozomi Haga, Koichi Ito, Masaharu Takahashi, and Kazuyuki Saito, 2009 International Symposium on Antennas and Propagation (ISAP 2009), pp. 508-511, Oct. 2009, English, International conference
  • Fundamental study on a perturbed patch antenna on small ground plane aimed at multi polarization and matching stability on WBAN applications, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, 2009 International Workshop on Antenna Technology (iWAT 2009), p. 206, Mar. 2009, English, International conference
  • Electric field distributions around the human body with a small antenna in the frequency range of 2.5 MHz to 2.5 GHz, Koichi Ito, Nozomi Haga, Masaharu Takahashi, and Kazuyuki Saito, 2009 International Workshop on Antenna Technology (iWAT 2009), Special Session 6-5, Mar. 2009, English, International conference
  • A cavity-backed slot antenna for on-body BAN devices, Nozomi Haga, Kazuyuki Saito, Masaharu Takahashi, and Koichi Ito, 2008 International Workshop on Antenna Technology (iWAT 2008), pp. 510-513, Mar. 2008, English, International conference

Awards

  • Distinguished Contributions Award, IEICE Communications Society, Sep. 2020, Japan society
  • Young Engineer Award, Nozomi Haga, IEEE Antennas and Propagation Society Japan, Dec. 2018, International society
  • Distinguished Contributions Award, IEICE Communications Society, Sep. 2018, Japan society
  • Young Researcher Award, Nozomi Haga, IEICE Technical Committee on Wireless Power Transfer, Mar. 2018, Japan society
  • Young Researcher Award, Nozomi Haga, IEICE Technical Committee on Antennas and Propagation, Mar. 2012, Japan society

Research Projects

Academic Contribution

  • 2020 International Symposium on Antennas and Propagation, Academic society etc, The Communication Society of the Institute of Electronics, Information and Communication Engineers, 25 Jan. 2021, 28 Jan. 2021, International academic contribution
  • 2019 Asian Wireless Power Transfer Workshop, Academic society etc, Technical Committee on Wireless Power Transfer of IEICE Communication Society, 31 Oct. 2019, 02 Nov. 2019, Xi'an, China, International academic contribution
  • 2018 Asian Wireless Power Transfer Workshop, Academic society etc, Technical Committee on Wireless Power Transfer of IEICE Communication Society, 02 Nov. 2018, 04 Nov. 2018, Sendai, Japan, International academic contribution
  • International Conference on Technology and Social Science 2018, Academic society etc, The NPO e-JIKEI Network Promotion Institute, 18 Apr. 2018, 20 Apr. 2018, Kiryu, Japan, International academic contribution


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