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- radio noise figure 无线电噪声指数
- Features: Small reverse transfer capacitance, low noise figure. 特点:反向传输电容小,低噪声。
- It uses noise-canceling technique for low noise figure (NF). 该放大器使用了杂讯抵消的技术，以达到低杂讯指标。
- What they found, however, was a background hiss of radio noise, reminiscent of the hiss noticed by Dr Penzias and Dr Wilson. 但是，他们却发现了射电噪声的一种背景杂音，这让人联想到彭齐亚斯博士和威尔逊博士当时注意到的嘶声。
- The noise figure of the tuner is 5.3dB, and the dynamic range of AGC control is more than 50dB. 制作的UHF电子调谐器噪声系数为5.;3分贝;自动增益控制能力达50分贝以上
- The typical value of the DSB noise figure of the mixer diode is 4.8 dB at 35 GHz,which ac-cord with the prospection. 研制出的混频管在35GHz时双边带噪声系数为4.;8db;接近预期结果
- Lowest noise figure of a RF transistor is not normally where the input is perfectly matched. 射频晶体管的最低噪声系数通常不在输入完全匹配的地方。
- For atmospheric radio noise is the main interferential factor, the minimum-mean-error multiuser detector is employed in South China Sea for background noise and near-far problem. 以我国的南海海域为例，其背景噪声主要是大气噪声，针对背景噪声相对较强的远近效应现象，提出利用最小均方误差多用户检测技术的方法，并对其互相关函数进行了理论分析和计算。
- The HEMT fabricated using this structure demon-strates a noise figure of 0. 76 dB and a gain of 6.5dB at 1? GHz. 用该结构材料制作的HEMT器件在12GHz下;噪声系数0.;76dB;相关增益6
- The impact of gain, noise figure, and stability on RF CMOS image-reject LNA has been studied. 此篇文章将深入的探讨影像抑制金属氧化型低杂讯放大器的增益、杂讯指数和稳定度。
- 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。
- 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。
- The measured results of the LNA show that the gain is 27 dB and the noise figure is smaller than 2 dB. 极小化的结构，使其易于与系统整合，使超宽频系统可朝向高度整合小型化的目标。
- The measured 1-dB gain compression point was -12 dBm, and simulated noise figure was 4.06 dB at 60 GHz. 缩小化的对偶巴伦是使用并电容在电路中的输入、输出或终止端。
- 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。
- Without the radiotelescope, we didn't know that radio noises came from far in space. 没有射电望远镜,我们不知道无线电波来自遥远的太空。
- The technical requirements include channel selection, noise figure and radiation emission limits. 技术要求包括频道选择、噪声系数和辐射发射限值。
- ATF-34143 is also used to realize a low noise amplifier. The gain and noise figure of the LNA are about 14dB and 1.0 dB respectively. 低噪声放大器是采用ATF-34143设计的，增益约14dB，噪声系数1.;0dB。
- The Substrate meterial is domestic RT-Duroid 5880.The mixers with IF amplifier have the DSB noise figure of 5.0dB and 5.3dB respectively. 介质材料采用国产的仿RT-Duroid 5880。 经测试两种混频器包括中放在内的DSB噪声系数分别为5.;0dB和5
- Finally, we applied this modified cascode amplifier to the thermal noise canceling structure to achieve low noise figure and impedance matching. 最后应用这个宽频放大器到热杂讯消除技术架构来设计达到低杂讯与阻抗匹配。
