{"created":"2024-08-21T01:36:03.761398+00:00","id":2000223,"links":{},"metadata":{"_buckets":{"deposit":"99683b72-dd44-4ff6-9698-a02c503716b7"},"_deposit":{"created_by":14,"id":"2000223","owner":"14","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"2000223"},"status":"published"},"_oai":{"id":"oai:shonan-it.repo.nii.ac.jp:02000223","sets":["1724133071054:1724198863641"]},"author_link":["2091","2090"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-03-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"24","bibliographicPageStart":"19","bibliographicVolumeNumber":"46","bibliographic_titles":[{"bibliographic_title":"湘南工科大学紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"MEMOIRS OF SHONAN INSTITIUTE OF TECHNOLOGY","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"An L-band SiGe HBT vector modulator has been developed for the next generation wireless radios using active phased array antennas and adaptive beam forming networks. It employs 180°/90° hybrids for achieving quadrature phase shifting, four variable gain amplifiers for controlling gain, and Wilkinson power dividers for combining vectors. The amplitudes of two of the four signal paths with a phase off set of 90° are weighed and combined to obtain a full 360° phase shifting. High stability and small amplitude/phase errors can be expected since the 180°/90° hybrids and Wilkinson power dividers provide high isolation between ports. A collector drive is used for switching amplifiers to achieve high impedance and low insertion loss. Lumped elements are employed in the design of the 180°/90° hybrids and Wilkinson power dividers for achieving a miniaturized size. Lookup tables of the control voltages are generated from calibrating four signal paths. This lookup table can be easily extended to the electrical, environmental or process changes. The vector modulator shows a maximum gain error of less than 1dB and a maximum phase error of less than 2° for a full 360° phase shifting at 1GHz.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"湘南工科大学","subitem_publisher_language":"ja"}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10400308","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"09192549","subitem_source_identifier_type":"PISSN"}]},"item_10002_version_type_20":{"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":"ITO, Yasushi","creatorNameLang":"en"}],"familyNames":[{"familyName":"ITO","familyNameLang":"en"}],"givenNames":[{"givenName":"Yasushi","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2091","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤, 康之","creatorNameLang":"ja"},{"creatorName":"イトウ, ヤスシ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"伊藤","familyNameLang":"ja"},{"familyName":"イトウ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"康之","givenNameLang":"ja"},{"givenName":"ヤスシ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"2090","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":"2024-08-21"}],"displaytype":"detail","filename":"19-24_伊藤康之_An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°90° Hybrids and Wilkinson Power Dividers for High Stability and Small AmplitudePhase Errors.pdf","filesize":[{"value":"395 KB"}],"format":"application/pdf","licensetype":"license_11","url":{"label":"An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°/90° Hybrids and Wilkinson Power Dividers for High Stability and Small Amplitude/Phase Errors","url":"https://shonan-it.repo.nii.ac.jp/record/2000223/files/19-24_伊藤康之_An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°90° Hybrids and Wilkinson Power Dividers for High Stability and Small AmplitudePhase Errors.pdf"},"version_id":"d459469f-ddef-4726-9873-3ccbb43ccbb9"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"vector modulator","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"variable gain amplifier","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"180° hybrid","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"90° hybrid","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Wilkinson power divider","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"phase shift","subitem_subject_language":"en","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°/90° Hybrids and Wilkinson Power Dividers for High Stability and Small Amplitude/Phase Errors","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°/90° Hybrids and Wilkinson Power Dividers for High Stability and Small Amplitude/Phase Errors","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"14","path":["1724198863641"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-08-21"},"publish_date":"2024-08-21","publish_status":"0","recid":"2000223","relation_version_is_last":true,"title":["An L-Band SiGe HBT Vector Modulator Using Lumped-Element 180°/90° Hybrids and Wilkinson Power Dividers for High Stability and Small Amplitude/Phase Errors"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2024-08-21T07:14:25.946399+00:00"}