KUGA Nobuhiro

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Associate Professor

Date of Birth

1969

Research Fields, Keywords

Antenna, Microwace Circuits, Noise Measurement(Passive Intermodulation), Radiowave Propagation

Mail Address

E-mail address



Education 【 display / non-display

  •  
    -
    1997

    Yokohama National University

  •  
    -
    1992

    Yokohama National University

Degree 【 display / non-display

  • Doctor of Engineering - Yokohama National University

  • Master of Engineering - Yokohama National University

Campus Career 【 display / non-display

  • 2007.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2005.4
    -
    2007.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2004.4
    -
    2005.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Lecturer  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Mathematics, Physics, Electrical Engineering and Computer Science   Associate Professor  

  • 2011.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Mathematics, Physics, Electrical Engineering and Computer Science   Associate Professor  

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External Career 【 display / non-display

  • 2004.4
    -
    2013.9

    Tokyo Polytechnic University   Faculty of Engineering   Part-time Lecturer  

  • 1999.4
    -
    2004.3

    Tokyo Polytecnic University   Faculty of Engineering   Lecturer  

  • 1997.4
    -
    1999.3

    Hitachi Cable Ltd.  

Academic Society Affiliations 【 display / non-display

  • 1994.5
     
     
     

    IEEE

  • 1992.6
     
     
     

    The Institute of Electronics, Information and Communication Engineers

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    エレクトロニクス実装学会

Research Areas 【 display / non-display

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Communication and network engineering

 

Research Career 【 display / non-display

  • Study of Antennas for Mobile Communications

    Funded Research  

    Project Year:

  • Ceramic chip antenna for Wireless LAN

    Cooperative Research  

    Project Year:

  • Dual Polarized Active Antenna

    Grant-in-Aid for Scientific Research  

    Project Year:

  • Waveguide Slot Antenna array

    Funded Research  

    Project Year:

  • Study of Passive Intermodulation measurement on Microwave circuits.

    Cooperative Research  

    Project Year:

Thesis for a degree 【 display / non-display

  • A Study of Antennas for Mobile Communications

    Nobuhiro. Kuga

    1997.3

    Doctoral Thesis   Single Work  

  • 移動体通信用小型平面アンテナの研究

    久我 剛嗣

    1994.3

    Master Thesis   Single Work  

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    横浜国立大学

    移動体通信用各種移動端末用平面アンテナを考案し,それらの動作原理・基本特性を実験および数値解析により解析した。

Papers 【 display / non-display

  • Non-contact PIM measurement method using balanced transmission lines for impedance matched PIM measurement systems

    Ryunosuke Muroushi, Nobuhiro Kuga, Eiji Hanayama

    IEICE TRANSACTIONS ON COMMUNICATIONS   E106-B ( 12 )   1 - 8   2023.8  [Reviewed]

    DOI

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Single Work  

  • 非接触PIM測定における高強度IM源の物理的構造の影響評価

    肖琨, 室伏竜之介,久我 宣裕

    電子情報通信学会論文誌 B   2023.2  [Reviewed]

    DOI

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Single Work  

  • Residual Noise Identification for PIM Measurement Systems using Variable Low-PIM Termination

    Kuwata Masayoshi, Kuga Nobuhiro

    IEICE COMMUNICATIONS EXPRESS   advpub ( 0 )   772 - 777   2022.7  [Reviewed]

    DOI Web of Science CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人 電子情報通信学会   Joint Work  

    <p>In this letter, we propose the variable low-PIM termination composed of a voltage-controlled IM-source, a fixed attenuator, and a linear attenuator. The design method for evaluating PIM-level of the fixed attenuator is presented in order not to limit the variable range of entire termination. It is possible to maintain low-PIM performance in spite of using active voltage-controlled IM-source, whose IM level is extremely high. This termination is used for a dynamic residual noise identification for PIM measurement systems by observing the saturation value for voltage sweep. The validity is confirmed by experiments in 2GHz band.</p>

  • Non-Contact PIM-Source Localization for Array Antenna Using Near-Field Probes

    MURATA Kakeru, KUWATA Masayoshi, KUGA Nobuhiro

    J105-B ( 10 )   804 - 806   2022.5  [Reviewed]

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Single Work  

    A localization method of PIM source inherent in the array antenna is proposed. It is shown that the PIM source position can be estimated from the observed PIM level with changing excitation phase difference of each element, and the effectiveness of this method is validated experimentally.

  • A Microstrip Line Non-Contact Connector Whose Connected Lines Need Not Change Their Structure

    MUROFUSHI Ryunosuke, KUGA Nobuhiro, HANAYAMA Eiji

    J105-B ( 10 )   802 - 803   2022.1  [Reviewed]

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Joint Work  

    A microstrip line non-contact connector whose connected lines need not change their structure has been proposed in this paper. The operation of the proposed connector has been confirmed by both simulation and experiment.

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Review Papers 【 display / non-display

  • 電波吸収体のPIM特性

    久我 宣裕

    工業材料   Vol.67 ( 8 )   50 - 53   2019.8

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Publisher:アシザワ・ファインテック株式会社   Single Work  

  • 反射板を用いた部分球面走査放射効率測定

    2006年電子情報通信学会通信ソサエティ大会講演論文集   B ( B-1-143 )   B - 1-143   2006.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Joint Work  

  • 鉛フリーはんだ鍍金された導体材料の受動相互変調ひずみ特性

    2006年電子情報通信学会エレクトロニクスソサエティ大会講演論文集   C2 ( CS-5-1 )   CS - 5-1   2006.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Joint Work  

  • 金属材料で発生する相互変調ひずみの温度依存性

    2006年電子情報通信学会エレクトロニクスソサエティ大会講演論文集   C ( CS-5-2 )   CS - 5-2   2006.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Joint Work  

  • 先端短絡伝送線路を用いたマイクロ波電気接点のPIM特性評価

    2006年電子情報通信学会エレクトロニクスソサエティ大会講演論文集   C ( CS-5-3 )   CS - 5-3   2006.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Joint Work  

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Works 【 display / non-display

  • アンテナ・無線ハンドブック オーム社

    2006.11

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    Work type:Other  

    分担執筆

  • 「フォトニック結晶研究の現状と将来展望」(財)光産業技術振興協会

    2000

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    Work type:Other  

Industrial Property Rights 【 display / non-display

  • 受動相互変調ひずみの測定方法および測定システム

    久我宣裕,山本泰之,土井充,遠藤充哲

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    Applicant:国立大学法人 横浜国立大学

    Application no:PCT/JP2007/053438  Date applied:2007.3

    Country of applicant:Foreign country  

  • 放射効率測定装置

    久我宣裕,新井宏之

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    Applicant:横浜国立大学

    Application no:2006-241872  Date applied:2006.9

    Country of applicant:Domestic  

  • アンテナ装置

    久我宣裕,新井宏之,玉置亮太郎,柳尾幸二,酒井信智

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    Applicant:三菱マテリアル,横浜国立大学

    Application no:2006-004546  Date applied:2006.1.12

    Announcement no:2007-189385  Date announced:2007.7.26

    Patent/Registration no:4709015  Date issued:2011.3.25

    Country of applicant:Domestic  

  • プリント基板型モノポールアンテナ

    久我宣裕,新井宏之,矢野敏明

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    Applicant:国立大学法人 横浜国立大学, 日本無線

    Application no:特願2005-302706  Date applied:2005.10.18

    Announcement no:特開2007-116232  Date announced:2007.5.1

    Patent/Registration no:3941069  Date issued:2007.4.13

    Country of applicant:Domestic  

  • 分配器および方法、プラズマ処理装置および方法、並びに、LCDの製造方法

    大見忠弘,後藤尚久,久我宣裕,廣江 昭彦

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    Applicant:東京エレクトロン,大見忠弘,後藤尚久

    Application no:特願2006-510833  Date applied:2004.3.10

    Patent/Registration no:特許第4134226  Date issued:2008.6.6

    Country of applicant:Domestic  

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Presentations 【 display / non-display

  • 電磁波曝露されたDCファンにおけるIM源特定に関する検討

    安藤佑悟・久我宣裕

    電子情報通信学会エレクトロニクスソサイティ 総合大会 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    安藤佑悟・久我宣裕, 電磁波曝露されたDCファンにおけるIM源特定に関する検討,」 信学エレソ大 C-2-34,2019年3月

  • 間隙付きループ装荷パッチアンテナの放射効率の円偏波放射特性依存性評価

    髙山侑紀・久我宣裕

    電子情報通信学会エレクトロニクスソサイティ 総合大会 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    髙山侑紀・久我宣裕, 「 間隙付きループ装荷パッチアンテナの放射効率の円偏波放射特性依存性評価,」信学通ソ大 B-1-107, 2019年3月

  • 板状ループアンテナを用いた板状磁性体の材料定数測定

    石井佑典・久我宣裕

    電子情報通信学会エレクトロニクスソサイティ 総合大会 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    石井佑典・久我宣裕,「板状ループアンテナを用いた板状磁性体の材料定数測定,」信学エレソ大 C-2-36, 2019年3月

  • ギャップ付ループとパッチ素子を用いた狭幅円偏波アンテナ

    髙山侑紀 久我宣裕

    電子情報通信学会 研究発表会 

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    Event date: 2018.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    髙山侑紀 久我宣裕,「ギャップ付ループとパッチ素子を用いた狭幅円偏波アンテナ,」信学技報, vol. 118, no. 310, AP2018-106, pp. 23-28, 2018年11月

  • Non-contact PIM Measurement of Large Samples using a Small Anechoic Box

    Hirotaka Suzuki, Nobuhiro Kuga

    URSI Asia-Pacific Radio Science Conference (URSI AP-RASC) 2016 

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    Event date: 2016.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Seoul, South Korea  

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Preferred joint research theme 【 display / non-display

  • アンテナ,伝送線路,コネクタ等受動回路における受動相互変調歪(PIM)評価技術,測定

  • 各種アンテナの研究開発,理論解析

Past of Collaboration and Commissioned Research 【 display / non-display

  • 平面型円偏波アレーアンテナの開発

    Funded Research offered by Enterprises  

    Project Year: 2002  -  2004 

  • 次世代無線通信用アンテナの開発

    Cooperative Research within Japan  

    Project Year: 2002  -  2003 

  • 移動体通信用アンテナの小型化,高性能化

    Funded Research offered by Enterprises  

    Project Year: 2002  -   

  • 偏波共用アクティブアンテナの研究

    Funded Research on Investiment  

    Project Year: 2001  -  2003 

  • 各種受動装置における受動相互変調歪の評価法および低減法

    Cooperative Research within Japan  

    Project Year: 1999  -  2003 

 

Charge of on-campus class subject 【 display / non-display

  • 2023   Electronic Circuits Ⅱ

    College of Engineering Science

  • 2023   Advanced Electrical and Computer Engineering

    College of Engineering Science

  • 2023   Analog Circuit Design

    College of Engineering Science

  • 2023   Laboratory Ⅰ for Electrical and Computer Engineering

    College of Engineering Science

  • 2023   Laboratory D for Electrical and Computer Engineering

    College of Engineering Science

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Committee Memberships 【 display / non-display

  • 機構デバイス研究専門委員会

    2012.5 - 2015.4  副委員長

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    Committee type:Other 

  • 機構デバイス研究専門委員会

    2010.5 - 2012.4  幹事

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    Committee type:Other 

  • アンテナ伝搬研究会専門委員会

    2008.5 - 2012.4  専門委員

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    Committee type:Other 

  • 機構デバイス研究会専門委員会

    2008.5 - 2010.4  専門委員

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    Committee type:Other 

  • 『Special Section on 2006 International Symposium on Antennas and Propagation』英文論文小特集編集委員会

    2006.12 - 2007.9  編集委員

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    Committee type:Other 

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