{"_buckets": {"deposit": "3edc5a21-1548-4ea6-935a-8e14c6e9d86d"}, "_deposit": {"id": "1803", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "1803"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00001803", "sets": ["454", "425"]}, "author_link": ["5657", "5658", "5659", "5660", "5661"], "control_number": "1803", "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": "2407", "bibliographicPageStart": "2401", "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": "In the 300MHz to 3GHz range, probes used to measure specific absorption rate (SAR) of mobile communication devices are usually calibrated using a rectangular waveguide filled with tissue-equivalent liquid. Above 3GHz, however, this conventional calibration can be inaccurate because the diameter of the probe is comparable to the cross-sectional dimension of the waveguide. Therefore, an alternative method of SAR probe calibration based on another principle was needed and has been developed by the authors. In the proposed calibration method, the gain of the reference antenna in the liquid is first evaluated using the two-antenna method based on the Friis transmission formula in the conducting medium. Then the electric field intensity radiated by the reference antenna is related to the output voltage of the SAR probe at a given point in the liquid. However, the fields are significantly reduced in the liquid, and the gain is impossible to calibrate in the far-field region. To overcome this difficulty, the Friis transmission formula in the conducting medium must be extended to the near-field region. Here, we report results of simulations and experiments on estimated gain based on the extended Friis transmission formula, which holds in the near-field region, and test the validity of the new formula.", "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.9.2401", "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/110007541051", "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": "5657", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Akagawa, Takuhei", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "5658", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sato, Ken-ichi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "5659", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hamada, Lira", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "5660", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Watanabe, Soichi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "5661", "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", "download_preview_message": "", "file_order": 0, "filename": "110007541051.pdf", "filesize": [{"value": "1.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1300000.0, "url": {"label": "110007541051.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/1803/files/110007541051.pdf"}, "version_id": "955c897f-d029-41ed-bbe7-313475adce58"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Friis transmission formula", "subitem_subject_scheme": "Other"}, {"subitem_subject": "SAR probe calibration", "subitem_subject_scheme": "Other"}, {"subitem_subject": "conducting medium", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Fresnel approximation", "subitem_subject_scheme": "Other"}, {"subitem_subject": "far-field gain", "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": "A Method of Measuring Gain in Liquids Based on the Friis Transmission Formula in the Near-Field Region(Measurements,\u003cSpecial Section\u003e2006 International Symposium on Antennas and Propagation)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "A Method of Measuring Gain in Liquids Based on the Friis Transmission Formula in the Near-Field Region(Measurements,\u003cSpecial Section\u003e2006 International Symposium on Antennas and Propagation)", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["454", "425"], "permalink_uri": "http://hdl.handle.net/10191/25749", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2014-02-25"}, "publish_date": "2014-02-25", "publish_status": "0", "recid": "1803", "relation": {}, "relation_version_is_last": true, "title": ["A Method of Measuring Gain in Liquids Based on the Friis Transmission Formula in the Near-Field Region(Measurements,\u003cSpecial Section\u003e2006 International Symposium on Antennas and Propagation)"], "weko_shared_id": -1}