{"created":"2023-05-15T12:35:43.999911+00:00","id":4764,"links":{},"metadata":{"_buckets":{"deposit":"e903c98c-91c0-4fac-b786-7282b95ff72c"},"_deposit":{"created_by":3,"id":"4764","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"4764"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00004764","sets":["31"]},"author_link":["4496","15327","3040","15328"],"item_10001_alternative_title_24":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"ダイチジョウ　ノ　セッチ　オユウスル　モノポール　アンテナ　ノ　リロン　カイセキ"},{"subitem_alternative_title":"Theoretical Analysis of a Monopole Antenna with Conducting Flat Disc above the Earth"}]},"item_10001_biblio_info_28":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-12-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicPageEnd":"2328","bibliographicPageStart":"2320","bibliographicVolumeNumber":"J82-B","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌. B, 通信"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"大地上の接地を有するモノポールアンテナを等価回路を用いて解析し，大地の 電気的特性の影響を考慮した電流分布，入力インピーダンス，指向性，アンテナ能率を アンテナ長，接地板の半径，周波数などをパラメータとして求めた． まず，平面波展開により，系をスペクトル領域の等価回路表現し， 回路方程式を解くことによって，Green関数を求めている． モーメント法による数値計算の結果から，入力インピーダンスとアンテナ 能率は接地板の半径の大きさに依存することがわかった． 接地板をもたない場合，アンテナ長が大きいほどアンテナ能率は高くなるが， 接地板をもつ場合，その半径を大きくしていくと，アンテナ長が大きいと アンテナ能率は小さくなり，アンテナ長が小さい場合は大きくなっていく． また，放射指向性はアンテナ長が長くなるほど指向性最大方向が水平に 近づき，接地板の半径が大きくなるほどビーム幅が大きくなるが， 周波数の影響をあまり受けないことがわかった．","subitem_description_type":"Other"}]},"item_10001_description_38":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{},{}],"names":[{"name":"Kikuma, Nobuyoshi"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13444697","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"書誌レコードID（NCID）","attribute_value_mlt":[{"subitem_source_identifier":"AA11325909","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"湯浅, 晶"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"板津, 大介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"稲垣, 直樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"菊間, 信良"},{"creatorName":"キクマ, ノブヨシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-01-24"}],"displaytype":"detail","filename":"J82-B_2320.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","license_note":"Copyright (c) 1999 IEICE　http://search.ieice.org/index.html","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文_fulltext","url":"https://nitech.repo.nii.ac.jp/record/4764/files/J82-B_2320.pdf"},"version_id":"0e455fca-facd-4e05-8102-82905b2dceb8"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"大地上の接地を有するモノポールアンテナの理論解析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"大地上の接地を有するモノポールアンテナの理論解析"}]},"item_type_id":"10001","owner":"3","path":["31"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-06-25"},"publish_date":"2013-06-25","publish_status":"0","recid":"4764","relation_version_is_last":true,"title":["大地上の接地を有するモノポールアンテナの理論解析"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-15T14:48:36.559306+00:00"}