نتایج جستجو برای: low noise
تعداد نتایج: 1359456 فیلتر نتایج به سال:
A complete procedure for the design of W-band low noise amplifier in MMIC technology is presented. The design is based on a simultaneously power and noise matched technique. For implementing the method, scalable bilateral transistor model parameters should be first extracted. The model is also used for transmission line utilized in the amplifier circuit. In the presented method, input/output ma...
Introduction: Low frequency sound is one of the most important sources of sound in the environment. Some individual differences such as extraversion, neuroticism, and sound sensitivity are factors that influence the effect of sound on cognitive functions. The purpose of this study was to investigate the effect of personality type (introversion/extraversion) on cognitive Performances in the pres...
A novel low noise trans-impedance amplifier is proposed using low cost 0.18 µm CMOS technology. A resistive-capacitive feedback is used to extend the bandwidth of the amplifier. As the structure is inductor less, it is suitable for low cost integrated optical interconnects. In this paper Improved Particle Swarm Optimization have applied to determine optimal trans-resistance and noise of propose...
background: acoustic noise is one of the universal pollutants of modern society. although the high level of noise adverse effects on human hearing has been known for many years, non-auditory effects of noise such as effects on cognition, learning, memory and reading, especially on children, have been less considered. factors which have negative impact on these features can also have a negative ...
Substrate noise generated by digital circuits on mixed-signal ICs can disturb the sensitiveanalog/RF circuits, such as Low Noise Amplifier (LNA), sharing the same substrate. This paperinvestigates the adverse impact of the substrate noise on a high frequency cascode LNA laid out on alightly doped substrate. By studying the major noise coupling mechanisms, a new and efficientmodeling method is p...
Introduction: One of the main causes of urban noise pollution is traffic noise, which causes a variety of physical and mental effects, sleep disorders, hearing loss, and quality of life. The purpose of this study was to assess the noise pollution caused by traffic and its effects on sleep disorders and the people’s quality of life in Shiraz city. Methods: This descriptive and analytic ...
Background: Acoustic noise is one of the universal pollutants of modern society. Although the high level of noise adverse effects on human hearing has been known for many years, non-auditory effects of noise such as effects on cognition, learning, memory and reading, especially on children, have been less considered. Factors which have negative impact on these features can also have a negat...
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