noise figure

The modified average population inversion iteration method is proposed for calculating the gain and noise figure of erbium-doped fiber amplifiers.

提出了改进的平均粒子数反转度迭代算法来数值计算掺铒光纤放大器的增益和噪声系数。

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Determination of GaAs Microwave FET Noise Figure and Available Power Gain

GaAs FET噪声系数和资用功率增益的测定

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Features: High power gain, low noise figure, very low intermodulation distortion.

特点: 高功率增益, 低噪声输出, 非常低的互调失真.

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A Research into the Effect of Funnel MCP on the Relationship Between Current Gain and Noise Figure

扩口微通道板对电流增益和噪声因子关系的影响

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Features: High gain bandwidth product, small output capacitance, low noise figure.

特点: 产品增益带宽高, 输出电容小, 噪声系数低.

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The LNA choose the cascade structure to minish the noise figure and improve the gain.

该放大器芯片采用了共源共栅结构降低噪声，提高了增益。

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As is known to us, the mm-wave system's T/ R front end is the key module that have heavily influence on the quality of transmitting signal and receiver's noise figure, sensitivity and output SNR.

众所周知，毫米波系统收发前端设计的好坏将直接影响毫米波发射信号的质量，接收机噪声系数，灵明度和输出信噪比等指标。

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Finally, achievements of conversion gain, Linearity and noise figure of CMOS mixers are summarized and compared.

最后, 总结了CMOS混频器有关转换增益 、 线性度以及噪声系数的成果报道.

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Optical fibre amplifiers-Basic specification-Part 3-1 : Test methods for noise figure parameters ; Optical spectrum analyzer.

光纤放大器基本规范.第 3-1 部分: 噪音 计算参数.光谱分解器.

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High temperature superconductors microwave devices provide the advantages of lower insertion loss and lower noise figure.

高温超导微波器件具有极低损耗和极低噪声的优良特性.

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Features: High gain bandwidth, small output capacitance, low noise figure.

特点: 特征频率高,共基极输出电容小, 噪声系数低.

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By means of the formulae derived from device physics of HBT, the influence of device parameters on the minimum noise figure is also represented.

同时通过基于异质结双极晶体管器件物理的公式，给出了器件参数对器件最小噪声系数的影响。

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Then the LNB is manufactured, and the gain and the noise figure are measured by noise meter. The best scheme is determined with testing and modifying again and again.

通过噪声仪测量LNB噪声和增益，并反复调试和修改，确定最优方案。

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In the paper, an improved method for the simultaneous determination of GaAs FET noise figure and available power gain is given a method for the design of loss matching network and quantitative analysis of its loss is also presented.

本文给出了可同时测量GaAs FET噪声系数和资用功率增益的改进方法，以及对有耗匹配网络设计和损耗的定量分析方法。

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