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タイトル低背型アイソレータの開発
タイトルヨミテイハイガタ アイソレータ ノ カイハツ
タイトル別表記Development of an isolator with low height
作成者山本, 節夫
大城, 和宣
栗巣, 普揮
松浦, 満
三上, 秀人
藤井, 重男
作成者ヨミヤマモト, セツオ
オオシロ, カズノリ
クリス, ヒロキ
マツウラ, ミツル
ミカミ, ヒデト
フジイ, シゲオ
作成者別表記Yamamoto, Setsuo
Kurisu, Hiroki
作成者所属山口大学大学院理工学研究科(工学)
内容記述(抄録等)An isolator with a height of 1 mm, approximately two-thirds that of the conventional isolators now on the market, was successfully developed. The isolator consists of a thin YIG ferrite platelet, a silver microstrip Y-junction as a transmission line, a ferrite permanent magnet platelet for generating a magnetic bias field, and an iron yoke as a part of a magnetic circuit. The thickness of the YIG ferrite platelet, the ferrite magnet platelet, and the iron yoke was reduced to less than 0.3 mm to achieve a total device height of 1 mm. The transmission characteristics of the isolator were analyzed, using the finite element method. The simulated transmission characteristics of the designed isolator showed non-reciprocal operation at 5 GHz with an insertion loss of 0.65 dB, and an isolation over 20 dB. A thin YIG ferrite platelet with a ferromagnetic resonance width (delta H) of 5.6 kA/m was fabricated by a novel sintering method using a pulsed current under uniaxial pressurization followed by flash annealing. The fabricated isolator successfully operated at 5 GHz with an insertion loss of 0.7 dB and an isolation of 23 dB, which are acceptable transmission characteristics for practical use.
本文言語jpn
著者キーワードisolator
microstrip Y-junction
YIG ferrite
non-reciprocal transmission
low height
資料タイプtext
出版者日本応用磁気学会
出版者ヨミニホン オウヨウ ジキ ガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0285-0192
NCIDAN0031390X
掲載誌名日本応用磁気学会誌
掲載誌名別表記Journal of Magnetics Society of Japan
29
2
開始ページ66
終了ページ71
発行日2005
関連情報URL(IsPartOf)http://www.wdc-jp.com/msj/journal/index.html
著者版/出版社版その他
リポジトリID2008010349
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010349