SAKAKIBARA Kunio

写真a

Affiliation Department etc.

Department of Electrical and Mechanical Engineering
Department of Electrical and Mechanical Engineering

Title

Professor

Research Fields, Keywords

Antenna Engineering

Graduate School

  • 1993.04
    -
    1996.03

    Tokyo Institute of Technology  Graduate School, Division of Science and Engineering  Dept. of Electrical and Electronic EngineerinDoctor's Course  Completed

  • 1991.04
    -
    1993.03

    Tokyo Institute of Technology  Graduate School, Division of Science and Engineering  Dept. of Electrical and Electronic EngineerinMaster's Course  Completed

Degree

  • Tokyo Institute of Technology -  Doctor of Engineering

External Career

  • 2000.11
    -
    2001.05

    University of Ulm   Guest Researcher  

  • 1996.04
    -
    2002.09

    TOYOTA Central Research and Development Laboratories Inc.   Researcher  

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Communication/Network engineering

 

Thesis for a degree

  • Study of Single Layer Slotted Waveguide Arrays

    榊原 久二男 

      1996.03

    8   1

Papers

  • Millimeter-Wave Topside Waveguide-to-Microstrip Transition in Multilayer Substrate

    Yuki Ishikawa, Kunio Sakakibara, Yuta Suzuki, Nobuyoshi Kikuma

    IEEE Microwave and Wireless Components Letters ( IEEE )  28 ( 5 ) 380 - 382   2018.03  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Effect of Wall-Surrounded Slot on Stepped Narrow Wall for Bandwidth Enhancement of Partially Parallel-Feeding Waveguide Traveling-Wave Array

    Yuichi Hirayama, Kunio Sakakibara, Haruki Umemura, Katsuhiro Miyazaki, Nobuyoshi Kikuma

    IEEE Transactions on Antennas and Propagation   65 ( 8 ) 3976 - 3985   2017.05  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • RF Performance of Layer-Structured Broadband Passive Millimeter-Wave Imaging System

    Kunio Sakakibara, Kunihiko Ohkawa, Yutaka Aoki, and Nobuyoshi Kikuma

    International Journal of Antennas and Propagation ( Hindawi Publishing Corporation )  2016   2015.12  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    Low profile and simple configuration are advantageous for RF module in passive millimeter-wave imaging system. High sensitivity over broad operation bandwidth is also necessary to detect right information from weak signal. We propose a broadband layer-structured module with low profile, simple structure, and ease of manufacture. This module is composed of a lens antenna and a detector module that consists of a detector circuit and a broadband microstrip-to-waveguide transition. The module forms a layer structure as a printed substrate with detector circuit is fixed between two metal plates with horn antennas and back-short waveguides. We developed a broadband passive millimeter-wave imaging module composed of a lens antenna and a detector module in this work. The gain and the antenna efficiency were measured, and the broadband operation was observed for the lens antenna. For the detector module, peak sensitivity was 8100 V/W. Furthermore, the detector module recognized a difference in the absorber’s temperature. The designs of the lens antenna and the detector module are presented and the RF performances of these components are reported. Finally, passive millimeter-wave imaging of a car, a human, and a metal plate in clothes is demonstrated in this paper.

  • Low-Sidelobe Design of Microstrip Comb-Line Antennas Using Stub-Integrated Radiating Elements in the Millimeter-Wave Band

    S. Sugawa, K. Sakakibara, N. Kikuma, H. Hirayama

    IEEE Transactions on Antennas and Propagation   60 ( 10 ) 4699 - 4709   2012.10  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    A novel radiating element with a matching circuit was developed for comb-line antennas of traveling-wave operation. In the design of low-sidelobe traveling-wave array antennas, large coupling is required for array elements of the comb-line antenna around the input port. Furthermore, the traveling-wave arrays, whose number of elements is small, also require large coupling because the radiation power for each array element is assigned to be much larger. However, wide radiating elements for large coupling perform poor impedance matching characteristics and radiate large cross polarization. Thus, we proposed a novel radiating element with matching stub in parallel to the radiating element to realize strong radiating power, low reflection, and low cross-polarization, simultaneously. The simulated and measured performances of low-sidelobe 14-element and 6-element antennas were demonstrated in this paper.

  • Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas

    S. Yano, K. Sakakibara, N. Kikuma, and H. Hirayama

    IEICE Transactions on Communications   E95-B ( 1 ) 34 - 40   2012.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Broadband Millimeter-Wave Microstrip Comb-Line Antenna Using Corporate Feeding System with Center-Connecting

    A. Kunita, K. Sakakibara, N. Kikuma, and H. Hirayama

    IEICE Transactions on Communications   E95-B ( 1 ) 41 - 50   2012.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Transition from Waveguide to Two Microstrip Lines with Slot Radiators in the Millimeter-Wave Band

    Kazuyuki Seo, Kunio Sakakibara, Nobuyoshi Kikuma

    IEICE Transactions on Communications   E94-B ( 5 ) 1184 - 1193   2011.05  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Millimeter-wave Microstrip Comb-line Antenna Using Reflection-canceling Slit Structure

    Y. Hayashi, K. Sakakibara, M. Nanjo, S. Sugawa, N. Kikuma, and H. Hirayama

    IEEE Transactions on Antennas and Propagation   59 ( 2 ) 398 - 406   2011.02  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Narrow-Wall-Slotted Hollow-Waveguide Array Antenna Using Partially Parallel Feeding System in Millimeter-Wave Band

    Y. Ikeno, K. Sakakibara, N. Kikuma, H. Hirayama

    IEICE Transactions on Communications   E93-B ( 10 ) 2545 - 2553   2010.10  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Narrow-Wall-Connected Microstrip-to-Waveguide Transition Using V-Shaped Patch Element in Millimeter-Wave Band

    K. Seo, K. Sakakibara, N. Kikuma

    IEICE Transactions on Communications   E93-B ( 10 ) 2523 - 2530   2010.10  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

display all >>

Books

  • Millimeter-wave Application Technologies

    (Part: Supervision Book )

    S&T Publishing Inc.  2018.08 ISBN: 978-4-907002-73-2

  • Microwave and Millimeter Wave Technology

    Igor Minin 他 (Part: Multiple Authorship )

    InTech  2010.03 ISBN: 978-953-7619-66-4

  • Radar Technology

    Guy Kouemou 他 (Part: Multiple Authorship )

    In-Tech  2009.12 ISBN: 978-953-307-029-2

Presentations

  • Recent Antenna Development of Automotive Millimeter-wave Radar Systems

    Kunio Sakakibara

    2018 IEEE International RF & Microwave Conference (RFM2018)  (Penang, Malaysia)  2018.12  -  2018.12  IEEE

  • Bandwidth Enhancement of Traveling-wave Microstrip Array Fed from Both Ends

    Hiroya Tanabe, Kunio Sakakibara, Nobuyoshi Kikuma

    IEICE Technical Committee on Antennas and Propagation  2018.11  -  2018.11  IEICE

  • Design of Multi-layer Transmit-phased-array with Varactor Diodes Using Matrix Calculation for Two-dimensional Beam-scanning

    Tomihiro Ikegami, Kunio Sakakibara, Shota Ino, Nobuyoshi Kikuma

    IEICE Technical Committee on Antennas and Propagation  (Okinawa Industry Support Center (Naha, Okinawa))  2018.11  -  2018.11  IEICE

  • Measured Performance of Broadband Frequency Selective Surface to Reduce Return Loss of Dielectric Plate Designed by Matrix Analysis of Equivalent Circuit

    Tomihiro Ikegami, Kunio Sakakibara, Shota Ino, Nobuyoshi Kikuma

    2018 Asia-Pacific Microwave Conference (APMC2018)  (Kyoto, Japan)  2018.11  -  2018.11  IEICE

  • E-Plane Beam-Forming Performance of Rotman-Lens in Multi-Layer Substrate

    Yosuke Otsuka, Shugo Yamauchi, Kunio Sakakibara, Nobuyoshi Kikuma, Kojiro Iwasa

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

  • Design of Frequency Selective Surface Loaded to Multilayer Dielectric Plate for Loss Reduction over Wide Incident Angle

    Shota Ino, Tomihiro Ikegami, Kunio Sakakibara, Nobuyoshi Kikuma, Toshikazu Hori

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

  • Design of Arbitrary Linear Polarization in Traveling Array of Microstrip Comb-Line Antenna Using Rounded Radiating Elements

    Ryosuke Kojima, Kunio Sakakibara, Nobuyoshi Kikuma

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

  • Design of Spatial Power Combining Circuit Using Taper Waveguide for High-Power Generation in Terahertz Band

    Kazuaki Niwa, Kunio Sakakibara, Nobuyoshi Kikuma

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

  • Double-Layer Waveguide Planar Array Antenna Composed of Narrow-Wall Cavity-Backed 2x2-Element Sub-Arrays Fed by E-Plane Feeding Circuit

    Haruna Yokoi, Kunio Sakakibara, Nobuyoshi Kikuma

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

  • Bandwidth Extension of Planar Microstrip-to-Waveguide Transition by Via-Hole Arrangement

    Thanh Tuan Nguyen, Kunio Sakakibara, Nobuyoshi Kikuma

    2018 International Symposium on Antennas and Propagation (ISAP 2018)  (Busan, Korea)  2018.10  -  2018.10 

display all >>

 
 

Academic Activity

  • 2016.12
    -
    Now

    Institute of Electrical and Electronics Engineering  

  • 2009.01
    -
    2010.12

    Institute of Electrical and Electronics Engineering   IEEE APS Nagoya Chapter Treasurer

  • 2007.01
    -
    2008.12

    Institute of Electrical and Electronics Engineering   IEEE APS Nagoya Chapter Secretary