{"created":"2023-06-19T09:12:51.448544+00:00","id":24770,"links":{},"metadata":{"_buckets":{"deposit":"b5f9f8a8-dec8-44ad-a691-9e2ad836cc24"},"_deposit":{"created_by":1,"id":"24770","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"24770"},"status":"published"},"_oai":{"id":"oai:kumadai.repo.nii.ac.jp:00024770","sets":["426:427"]},"author_link":["167357","111362"],"item_18_alternative_title_22":{"attribute_name":"その他の言語のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Broadband circularly polarized antenna using metamaterials."}]},"item_18_alternative_title_23":{"attribute_name":"タイトル（ヨミ）","attribute_value_mlt":[{"subitem_alternative_title":"メタマテリアル オ モチイタ アタラシイ コウタイイキ エン ヘンパ アンテナ ト ソノ アレーカ オヨビ カヘン トクセイカ"}]},"item_18_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-05-31","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_18_creator_3":{"attribute_name":"別言語の著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"福迫, 武","creatorNameLang":"ja"},{"creatorName":"フクサコ, タケシ","creatorNameLang":"ja-Kana"},{"creatorName":"Fukusako, Takeshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"福迫","familyNameLang":"ja"},{"familyName":"フクサコ","familyNameLang":"ja-Kana"},{"familyName":"Fukusako","familyNameLang":"en"}],"givenNames":[{"givenName":"武","givenNameLang":"ja"},{"givenName":"タケシ","givenNameLang":"ja-Kana"},{"givenName":"Takeshi","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"167357","nameIdentifierScheme":"WEKO"}]}]},"item_18_description_17":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf"}]},"item_18_description_46":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"研究報告書","subitem_description_type":"Other"}]},"item_18_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"広帯域な円偏波アンテナの実現を目指し，そのアレー化をも目指した．まずは，平面基板上に作成されたワイドスロットアンテナにＬ字形のプローブを組み合わせることで，中心周波数の４０％の帯域で円偏波が実現できるアンテナを提案した．しかし，正面方向以外の角度では，交差偏波が強くなり，その改良型として，Ｌ字形の曲がり部分を容量で結合し，ほぼ完全で対称な正方形の形をしたスロットアンテナを提案し，広い放射角度において十分な円偏波を４０％程度の周波数帯域で実現できることをしめした．次に，背面板を用い\nて且つ低姿勢なアンテナをめざし，背後に人工磁気導体特性をしめる人工グラウンドの使用を提案した．これを用いたマイクロストリップアンテナの構造を提案し，低姿勢で２４％とマイクロストリップアンテナには見られない広帯域な円偏波特性を実現した．さらにこの構造のアレー化について検討した．","subitem_description_type":"Other"},{"subitem_description":"The author has tried 3 types of circularly polarized broad antennas. In the first structure, a wide-slot antenna using L-shaped probe has been proposed. This\nantenna has very simple and unique structure but the azimuth range of circular\npolarization (CP) is narrow. To improve this, a square slot antenna using separated\nLprobes has been proposed. This antenna shows broadband axial ratio and wide azimuth range of CP. Finally to realize a low-profile circularly polarized broadband antenna, a patch antenna using artificial ground structure has been proposed. This antenna shows 40% of CP bandwidth at 6 GHz. Finally this antenna is arrayed, and the coupling is investigated.","subitem_description_type":"Other"}]},"item_18_publisher_36":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"熊本大学"}]},"item_18_subject_20":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"501.49","subitem_subject_scheme":"NDC"}]},"item_18_text_18":{"attribute_name":"形態","attribute_value_mlt":[{"subitem_text_value":"439828 bytes"}]},"item_18_text_47":{"attribute_name":"資源タイプ・ローカル","attribute_value_mlt":[{"subitem_text_value":"研究報告書"}]},"item_18_text_48":{"attribute_name":"資源タイプ・NII","attribute_value_mlt":[{"subitem_text_value":"Research Paper"}]},"item_18_text_49":{"attribute_name":"資源タイプ・DCMI","attribute_value_mlt":[{"subitem_text_value":"text"}]},"item_18_text_50":{"attribute_name":"資源タイプ・ローカル表示コード","attribute_value_mlt":[{"subitem_text_value":"06"}]},"item_18_text_78":{"attribute_name":"コメント","attribute_value_mlt":[{"subitem_text_value":"平成19～21年度科学研究費補助金(基盤研究(C))研究成果報告書　課題番号：19560388"}]},"item_18_text_80":{"attribute_name":"科研費番号","attribute_value_mlt":[{"subitem_text_value":"19560388"}]},"item_18_version_type_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"福迫, 武"}],"nameIdentifiers":[{"nameIdentifier":"111362","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-03-02"}],"displaytype":"detail","filename":"KaC19560388.pdf","filesize":[{"value":"439.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KaC19560388.pdf","url":"https://kumadai.repo.nii.ac.jp/record/24770/files/KaC19560388.pdf"},"version_id":"cf614814-b857-494f-b2b3-2edbfd526546"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"情報通信工学","subitem_subject_scheme":"Other"},{"subitem_subject":"先端的通信","subitem_subject_scheme":"Other"},{"subitem_subject":"広帯域アンテナ","subitem_subject_scheme":"Other"},{"subitem_subject":"円偏波","subitem_subject_scheme":"Other"},{"subitem_subject":"メタマテリアル","subitem_subject_scheme":"Other"}]},"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":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"メタマテリアルを用いた新しい広帯域円偏波アンテナとそのアレー化および可変特性化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"メタマテリアルを用いた新しい広帯域円偏波アンテナとそのアレー化および可変特性化"}]},"item_type_id":"18","owner":"1","path":["427"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-06-08"},"publish_date":"2011-06-08","publish_status":"0","recid":"24770","relation_version_is_last":true,"title":["メタマテリアルを用いた新しい広帯域円偏波アンテナとそのアレー化および可変特性化"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-09-14T06:58:55.422620+00:00"}