{"created":"2021-03-01T06:05:28.982522+00:00","id":1802,"links":{},"metadata":{"_buckets":{"deposit":"b36767d1-0b3f-4cdb-ad82-74f668dec021"},"_deposit":{"id":"1802","owners":[],"pid":{"revision_id":0,"type":"depid","value":"1802"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00001802","sets":["423:424:425","453:454"]},"author_link":["5654","5655","5656"],"control_number":"1802","item_1627363077551":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2007-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageEnd":"2400","bibliographicPageStart":"2394","bibliographicVolumeNumber":"E90-B","bibliographic_titles":[{"bibliographic_title":"IEICE transactions on communications","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The reflection method is an accurate and simple method for measuring the radiation efficiency of a small antenna. However, it takes too long and has the disadvantage of underestimating the efficiency due to resonance in the cavity formed by the straight waveguide and two sliding shorts. To reduce the measurement time, one sliding short can be fixed while the other one is moved. To improve the accuracy of this technique, we can set the antenna to be measured at the center of the two sliding shorts or at a local anti-node of the standing wave in the waveguide. When one of the sliding shorts is fixed, the measured efficiency becomes negative at certain frequencies. We examine these reductions in efficiency using an equivalent transmission line model for the reflection method. We also derive analytical expressions for the overall efficiency in the above cases and verify new procedures that enable measurements to be performed without any drops in the measured efficiency.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_5_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1093/ietcom/e90-b.9.2394","subitem_relation_type_select":"DOI"}}]},"item_5_relation_31":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110007541050","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (C) 2007 IEICE"},{"subitem_rights":"本文データは学協会の許諾に基づきCiNiiから複製したものである"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA10826261","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0916-8516","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ishii, Nozomu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"5654","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Katagiri, Yasuo","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"5655","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Miyakawa, Michio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"5656","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":"2019-07-29"}],"displaytype":"detail","filename":"110007541050.pdf","filesize":[{"value":"858.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"110007541050.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/1802/files/110007541050.pdf"},"version_id":"366dd5a2-f226-4fb7-86ab-0fce39480594"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"radiation efficiency","subitem_subject_scheme":"Other"},{"subitem_subject":"reflection method","subitem_subject_scheme":"Other"},{"subitem_subject":"transmission line model","subitem_subject_scheme":"Other"},{"subitem_subject":"waveguide","subitem_subject_scheme":"Other"},{"subitem_subject":"sliding short","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Analysis of the Reflection Method for Measuring the Radiation Efficiency Using the Transmission Line Model(Measurements,<Special Section>2006 International Symposium on Antennas and Propagation)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Analysis of the Reflection Method for Measuring the Radiation Efficiency Using the Transmission Line Model(Measurements,<Special Section>2006 International Symposium on Antennas and Propagation)","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2014-02-25"},"publish_date":"2014-02-25","publish_status":"0","recid":"1802","relation_version_is_last":true,"title":["Analysis of the Reflection Method for Measuring the Radiation Efficiency Using the Transmission Line Model(Measurements,<Special Section>2006 International Symposium on Antennas and Propagation)"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-15T03:34:42.117528+00:00"}