Results 1 to 10 of about 1,101 (197)
Study on cascade noise figure of receivers with down converter
Dianzi Jishu Yingyong, 2021 According to the definition of noise figure，this paper deduces the cascade noise figure formula of receivers with mixers. By using this formula，it is easy to calculate and analysis the system noise figure affected by the device noise figure, gain and ...
Zhang Guangxian
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Noise Figure of a Balanced Amplifier [PDF]
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018 Noise figure expression of a balanced amplifier built with lossy divider and combiner and two imperfectly noise-matched component amplifiers is derived analytically using the method of noise waves in terms of the noise parameters of the amplifiers. We present analytical expressions for the three noise parameters of the balanced amplifier.
Akif Alperen Coskun, Abdullah Atalar
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Noise Figure Characteristics of Erbium Doped Fiber Amplifiers at single and multiple amplified stage [PDF]
مجلة التربية والعلم, 2012 In this study, an Erbium Doped Fiber Amplifier (EDFAs) simulation program has been written in Matlab to characterize Noise Figure variations of a forward pumped EDFAs operating in C band (1525-1565 nm) as functions of Er3+ fiber length, injected pump ...
Ragheed M. Ibrahim +2 more
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Sensitivity Analysis of the Simply Noise-matched Receiving Coil for NMR Experiments
Measurement Science Review, 2020 The article analyzes the sensitivity of unmatched receiving coil for the NMR scanner. Receiver of the scanner was investigated from the point of view of noise features. Theory of the noise figure has been modified to utilize the receiver for digitization
Andris Peter, Frollo Ivan
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Influence of local oscillator phase noise on noise figure of wideband receiver
Dianzi Jishu Yingyong, 2020 Based on the analysis of the influence of wide-band local oscillator with different phase noise on the received noise figure of the wideband receiver, a wideband mixer is used to actually test to obtain the phase noise of the mixer IF signal, through the
Li Xiaqin
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Balun LNA Thermal Noise Analysis and Balancing With Common-Source Degeneration Resistor
IEEE Access, 2020 The Balun low noise amplifier (LNA) is an LNA that exploits a combination of a common-source (CS) and a common-gate (CG) transistors, which cancels the noise and distortion of the CG stage.
Qusai M. Abubaker, Lutfi Albasha
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Design of BDS-3 RDSS low noise amplifier based on millimeter wave tube
Dianzi Jishu Yingyong, 2020 The existing Beidou signal receiver has a low-noise amplifier scheme in the S-band, and the noise figure is between 1.5 dB～1.7 dB under the condition of meeting the gain requirements and the noise performance can be further optimized.
Huang Shijin, Lai Songlin, Wang Yunan
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Influence of current reuse LNA circuit parameters on its noise figure [PDF]
Serbian Journal of Electrical Engineering, 2009 A 2.4 GHz low noise amplifier (LNA) with a bias current reuse technique is proposed in this work. To obtain the optimum noise figure (NF) value, dependence of NF on its most influential LNA parameters has been analyzed. Taking into account the LNA design
Radić Jelena +2 more
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Practical Noise Model of an Active Electronically Scanning Array
International Journal of Antennas and Propagation, 2023 Active electronically scanning arrays are now widely used in radar and communication systems. The noise characteristics are critical to the system signal-to-noise ratio, thus modeling of the antenna array noise is useful.
Jian Mi, Kan Wang, Zhao Li, Hongbing Sun
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Effect of Bismuth Doping on Noise Figure of Er-Doped Silica Fiber
IEEE Photonics Journal, 2023 We investigate the spectral and amplification characteristics of Bi/Er co-doped fiber (BEDF) and Er-doped fiber (EDF), prepared by atomic layer deposition (ALD).
Weizhu Ji +7 more
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