| 噪声系数分析仪浅析 |
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| 引用本文： | 魏凤英. 噪声系数分析仪浅析[J]. 无线电工程, 2006, 36(8): 37-39 |
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| 作者姓名： | 魏凤英 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 论述了噪声系数分析仪的工作原理和噪声系数最基本的测量方法——Y因子法。介绍了噪声系数分析仪常见故障的维修方法及其关键技术。尤其是HP8970B噪声分析仪,送生产厂家维修,费用比较昂贵。摸索出了一套简便高效的维修方法,用自行设计的放大器有关电路替代原件,成功地进行了修复,对此进行了重点介绍。
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| 关 键 词： | 噪声系数 混频 Y因子 扩频 |
| 收稿时间： | 2006-02-06 |
| 修稿时间： | 2006-02-06 |
Analysis of the Noise Factor Analyzer |
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| WEI Feng-ying. Analysis of the Noise Factor Analyzer[J]. Radio Engineering of China, 2006, 36(8): 37-39 |
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| Authors: | WEI Feng-ying |
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| Affiliation: | The 54th Researoh of CETC, Shijiazhuang Hebei 050081, China |
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| Abstract: | The noise factor analyzer’s operation principle and the basic noise factor measurement method, Y factor method, are described. Repairing methods and key techniques of the familiar faults of the noise factor analyzer are introduced. Especially, if HP8970B noise factor analyzer is sent to the manufacturer for repair, the cost is relatively expensive, so a simple and effective repairing method is researched, the amplifier related circuit designed by myself is used to replace the original part, so the instrument is restored successfully, which is highlighted in the paper. |
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| Keywords: | noise factor frequency mixing Y factor spread spectrum |
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