弱い相対論的電子ビームを用いた大口径W-band表面波発振器による大強度マイクロ波の発振特性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2017/03/01

タイトル(英語): Characteristic of Generation of Intense Microwave in Oversized W-band Surface Wave Oscillator Driven by Weakly Relativistic Electron Beam

著者名: 安中　裕大（新潟大学大学院自然科学研究科），山家　清之（新潟大学大学院自然科学研究科），小椋　一夫（新潟大学大学院自然科学研究科）

著者名(英語): Yuta Annaka (Graduate School of Science and Technology, Niigata University), Kiyoyuki Yambe (Graduate School of Science and Technology, Niigata University), Kazuo Ogura (Graduate School of Science and Technology, Niigata University)

キーワード: 大口径表面波発振器，後進波発振器，進行波管，弱い相対論的電子ビーム，表面波，高次モード　　oversized surface wave oscillator，backward wave oscillator，traveling wave tube，weakly relativistic electron beam，surface wave，higher order mode

要約(英語): We studied an oversized W-band (75 - 110 GHz) surface wave oscillator driven by a weakly relativistic electron beam. Surface wave is formed on slow wave structure (SWS) with rectangular corrugations and has an upper-cutoff frequency of about 100 GHz. To excite the surface wave, an annular electron beam is generated by a disc type cold cathode with beam energy between about 10 and 80 keV. The oscillator is driven in the backward wave oscillator (BWO) region for beam energy less than 30 keV and in the traveling wave tube (TWT) region for beam energy more than 30 keV. In the BWO region, microwaves are generated due to Cherenkov interaction between electron beam and surface wave in the W-band. In the TWT region, two types of microwaves are generated. One is due to the W-band surface wave as in the case of the BWO region. The other is due to higher order modes above 140 GHz.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.137 No.3 （2017）

本誌掲載ページ: 165-170 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/137/3/137_165/_article/-char/ja/