| 高性能隔离分配放大器研制与测量 |
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| 引用本文： | 王丹妮,王文利,边玉敬.高性能隔离分配放大器研制与测量[J].电子测量技术,2000(4):5-7. |
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| 作者姓名： | 王丹妮 王文利 边玉敬 |
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| 作者单位： | 中国科学院陕西天文台 |
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| 摘 要： | 文中论述现代精密时频系统对隔离发配放大器的技术要求及其重要作用。介绍为改进守时系统标准频率分配了系统而研制的一个高性能隔能分配放大器。对于５ＭＨｚ信号，该分配放大器的反向隔离度和路间隔离度均优于１１５ｄＢ（５ＭＨｚ）；相位噪声在１Ｈｚ达到－１３５ｄＢｃ／Ｈｚ．噪声本底为１５０ｄＢｃ／Ｈｚ；插入秒稳损失达到１０＾－１３量级。在１３ｄＢｍ输出情况下，谐波小于－４０ｄＢｃ。对该分配放大器主要性能测试涉及
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| 关 键 词： | 分配放大器 隔离度 测量 精密时频系统 |
A High Performance Isolation Distribution Amplifier and its Measurement |
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| Wang Danni Wang Wenli Bian Yujing.A High Performance Isolation Distribution Amplifier and its Measurement[J].Electronic Measurement Technology,2000(4):5-7. |
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| Authors: | Wang Danni Wang Wenli Bian Yujing |
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| Affiliation: | Wang Danni Wang Wenli Bian Yujing |
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| Abstract: | The importance of the isolation distribution amplifier in many modern precision time and Frequency systems is discussd. A high performance isolation distribution amplifier used to improve our frequency distribution subsystems is presented. The following performances were achieved: Input---output Isolation: 120dB, Channel--- channel Isolation: 115dB,
Phase noise(5MHz): -135dBc/Hz(at 1Hz), Noise floor: - 150dBc/Hz, Harmonics: <-40dBc. The relative measurement methods to the distribution amplifier are presented. |
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| Keywords: | Distribution Amplifier Isolation Measurement |
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