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Simultaneous Measurement of Antenna Gain and Complex Permittivity of Liquid in Near-Field Region Using Weighted Regression
http://hdl.handle.net/10191/25731
http://hdl.handle.net/10191/25731e79ac035-3c25-4620-9f36-cdf91d892b23
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
E91-B_6_1831-1837.pdf (527.4 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-02-25 | |||||
| タイトル | ||||||
| タイトル | Simultaneous Measurement of Antenna Gain and Complex Permittivity of Liquid in Near-Field Region Using Weighted Regression | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | SAR | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | near-field region | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | absolute gain | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Friis transmission equation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | least square method | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Ishii, Nozomu
× Ishii, Nozomu× Shiga, Hiroki× Ikarashi, Naoto× Sato, Ken-ichi× Hamada, Lira× Watanabe, Soichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | As a technique for calibrating electric-field probes used in standardized SAR (Specific Absorption Rate) assessment, we have studied the technique using the Friis transmission formula in the tissue-equivalent liquid. It is difficult to measure power transmission between two reference antennas in the far-field region due to large attenuation in the liquid. This means that the conventional Friis transmission formula cannot be applied to our measurement so that we developed an extension of this formula that is valid in the near-field region. In this paper, the method of weighted least squares is introduced to reduce the effect of the noise in the measurement system when the gain of the antenna operated in the liquid is determined by the curve-fitting technique. And we examine how to choose the fitting range to reduce the uncertainty of the estimated gain. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : IEICE transactions on communications 巻 E91-B, 号 6, p. 1831-1837, 発行日 2008-06 |
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| 出版者 | ||||||
| 出版者 | 電子情報通信学会 | |||||
| 言語 | ja | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0916-8516 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10826261 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://doi.org/10.1093/ietcom/e91-b.6.1831 | |||||
| 権利 | ||||||
| 権利情報 | Copyright (C) 2008 IEICE | |||||
| 権利 | ||||||
| 権利情報 | 本文データは学協会の許諾に基づき電子情報通信学会のサイトから複製したものである | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| 異版である | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://search.ieice.org/ | |||||
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Cite as
Ishii, Nozomu, Shiga, Hiroki, Ikarashi, Naoto, Sato, Ken-ichi, Hamada, Lira, Watanabe, Soichi, 2008, Simultaneous Measurement of Antenna Gain and Complex Permittivity of Liquid in Near-Field Region Using Weighted Regression: 電子情報通信学会, 1831–1837 p.
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