نتایج جستجو برای: low noise
تعداد نتایج: 1359456 فیلتر نتایج به سال:
In this paper, analysis, simulation and design of a distributed amplifier (DA) with 0.13µm CMOS technology in the frequency range of 3-40 GHz is presented. Gain cell is a current reused circuit which is optimum in gain, noise figure, bandwidth and also power dissipation. To improve the noise performance in the frequency range of interest, a T-matching low pass filter LC network which is utilize...
− Some measuring systems are very sensitive on disturbances incoming from power supplies. If no accumulators are used for their power supply, which ensure a minimum signal noise and transmission jamming signal from power network, special power supplies have to be constructed for them. An example of a possible influence of a disturbance, which spreads along to the power supply on high pure sine-...
This report describes the design of a two-stage broadband low-noise-amplifier (LNA) for the frequency range from 3 GHz to 9 GHz, using GaAs MESFETs with an ft of 20 GHz. The passive components were implemented with microstrips. In the frequency band of operation, the achieved noise figure (NF) is within 0.5 dB from the minimum NF of a single transistor, the power gain is 15 dB, flat within 1 dB...
The noise of a resistive sample is a measurable physical property. The noise signature can depend on such variables as the materials used in preparing a sample and the method used to prepare it. A versatile experimental technique is needed to measure these noise signatures, one which can be applied to any form of resistive structure. In addition, many samples with unique physical properties, su...
Background and Objectives: Noise pollution in cities, as a widespread and worldwide problem, can cause adverse health effects such as hearing loss. Traffic noise, as the most important source of urban noise, can influence many jobsincluding shopkeepers. The aim of this study was simultaneous assessment of traffic noise pollution and hearing threshold level of shopkeepers in congested area of Be...
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