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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
https://shonan-it.repo.nii.ac.jp/records/2000223
https://shonan-it.repo.nii.ac.jp/records/2000223fbadb60a-464e-4cd0-8310-225bb14a50dc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
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 (395 KB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-08-21 | |||||
| タイトル | ||||||
| タイトル | 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 | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | vector modulator | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | variable gain amplifier | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | 180° hybrid | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | 90° hybrid | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Wilkinson power divider | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | phase shift | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
ITO, Yasushi
× ITO, Yasushi× 伊藤, 康之 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 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. | |||||
| 言語 | en | |||||
| 書誌情報 |
ja : 湘南工科大学紀要 en : MEMOIRS OF SHONAN INSTITIUTE OF TECHNOLOGY 巻 46, 号 1, p. 19-24, 発行日 2012-03-31 |
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| 出版者 | ||||||
| 出版者 | 湘南工科大学 | |||||
| 言語 | ja | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 09192549 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN10400308 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
