特点:低噪声和高功率增益。
特点:高功率增益,低噪声输出,非常低的。
Features: High power gain, low noise figure, very low intermodulation distortion.
当振幅调制为灰尘颗粒时,功率增益谱出现起伏,并且产生尖峰。
As the modulation of amplitude is dust particle, the fluctuation and peaks are shown in the power gain spectrum.
以分贝为单位的功率增益等于10乘以以 10为基的功率增益的对数值。
The power gain in decibels is equal to 10 times the logarithm base 10 of the power gain.
对低噪声放大器设计时,主要围绕正向功率增益、噪声系数、线性度、功耗等主要性能指标进行设计。
We designed the LNA according to the performance index of its forward power gain, noise figure, linearity, power consumption and so on.
计算了受激电子喇曼散射的功率增益系数并测量了红外输出随染料激光频率调谐的变化,其结果符合较好;
The calculation for the power gain factors and the measurment for the infrared output as a function of a dye laser tunning are made and both results are in good agreement.
对低噪声放大器的基本要求是:噪声系数低、足够的功率增益、工作稳定性可靠、足够的带宽和大的动态范围等。
The basic requirements of the LNA include: low noise figure, enough power gain, reliable work stability, sufficient bandwidth and the wide dynamic range.
对已经被用二增益放大的数字接收信号进行接收和积分,从而计算接收信号功率值。
A digital reception signal which has been amplified by the second gain is received and integrated to calculate a reception signal power value.
在发送方向,收发信机向功率放大器提供射频信号,功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。
In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.
着重论述了硅微波功率晶体管内匹配网络的设计方法,对内匹配网络的功率均分特性、带宽特性,增益性能做了分析研究。
In this paper, design of intermatching network of Si microwave power transister is emphasized. The properties of power, bandwidth and power gain are analyzed.
达林顿晶体管增益大、可靠性高,尤其在大功率应用中更加简便。
Darlington transistor is more convenience in power amplification areas because of its high power gain and high reliability.
在双信道情况下,输入脉冲重叠时的输出功率和增益变得更陡峭。
In the condition of two-channel, when input pulses overlap, the output power and gain become steeper.
为了使数据可靠地传输,链路设计中往往盲目加大发射机功率,提高天线增益来提高系统的余量。
For the purpose of reliable transmission, the system margin is increased blindly through enhancing the transmitter power or the antenna gain in link design.
为研究高功率电磁脉冲的测量技术,提出一种应用标准增益喇叭天线和宽带数字示波器进行电磁脉冲辐射电场测量的方法。
In order to study the measurement technique of high power electromagnetic pulse, standard gain horn and wideband digital oscilloscope are adopted to measure the electromagnetic pulse waveform.
本文针对行波管的增益频率特性曲线呈钟形的问题,介绍并使用了微带功率均衡器的优化设计方法,并给出了实际应用结果。
This paper describes techniques for the design of microstrip power equalizer to solve the problem of the gain characteristics appears the bell shape with frequency.
对双向抽运拉曼光纤放大器(RFA)的噪声特性、增益饱和及抽运功率转换效率进行了详细研究。
The noise, gain saturation and pump power conversation efficiency of bidirectionally pumped Raman fiber amplifier (RFA) are investigated in detail.
光放大材料是光放大器的重要组成部分,它决定光放大器的光放大功率及平坦增益带宽。
Materials with light amplification is a main part of light amplifier, which determine the power efficiency and flat gain bandwidth of light amplifier.
详细讨论了重迭因子对增益、泵浦阈值功率的影响。
Effects of overlapping factors on the gain and pumping threshold power are discussed in detail.
通过数值分析的方法推导出光纤参量放大饱和信号增益和信号输出功率的数学表达式。
Two very pithy and powerful analytical expressions for saturated signal gain and signal output power of fiber optical parametric amplifiers are educed with numerical analysis.
本文通过数值分析研究了L D抽运方式对双包层光纤激光器增益特性及光纤内光功率分布的影响。
The gain character and power density distribution in the active fiber of double clad fiber laser (DCFL) with different pump modes are investigated by means of numerical analysis.
文中求得了相应的电子群聚、注一波互作用功率及增益的表达式,并进行了讨论。
We also derive out some useful expressions, such as electron bunching, beam-wave interaction power and gain, and carry out some discussions.
用该模型对MGL- 84型激光器的增益、输出功率和效率进行了计算,其结果与实验结果较吻合。
Calculations of the small signal gain and output power of MGL-84 lasers are made with the model and the calculating results are in agreement with the experiment.
提出了一种用小功率宽带光源较精确测量光纤放大器小信号增益谱的方法。
In this paper, a method evaluating small signal gain spectrum of optical fiber amplifier only using a small power broadband light source was proposed.
该功放具有工作频带宽,增益大,输出功率高等特点。
The wide frequency bandwidth, big gain, and high out put power were required.
增益调制器作为功率因数校正电路的核心电路,通过控制输入电流来得到一个高的功率因数。
As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.
分析讨论了气压、流速、气比、放电比功率对饱和强度及小信号增益的影响。
We have analysed and discussed the effects of the changes of pressure, flow velocity, gas composition and the discharge specific power on saturation intensity and small-signal gain coefficient.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式,分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
增益控制机构允许对输出发射功率电平的精确调整。
A gain control mechanism allows for accurate adjustment of the output transmit power level.
增益控制机构允许对输出发射功率电平的精确调整。
A gain control mechanism allows for accurate adjustment of the output transmit power level.
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