نتایج جستجو برای: flicker noise
تعداد نتایج: 197323 فیلتر نتایج به سال:
A 65-nm CMOS receiver tailored for breast cancer diagnostic imaging is demonstrated for the first time. The receiver shows 31-dB conversion gain, NF dB, 28 dBm, IIP dBm and IIP dBm over a band from 1.75 to 15 GHz. A programmable injection-locked divider generates quadrature LO signals with a I/Q phase error over three octaves without requiring any calibration or tuning. The receiver shows a fli...
Fluctuations in diversity and extinction sizes are discussed and compared for two different, individual-based models of biological coevolution. Both models display power-law distributions for various quantities of evolutionary interest, such as the lifetimes of individual species, the quiet periods between evolutionary upheavals larger than a given cutoff, and the sizes of extinction events. Ti...
PURPOSE To study the slow and fast rod signals of the scotopic 15-Hz flicker ERG in patients carrying mutations in the NYX gene, which has been recently identified as the cause of the complete form of congenital stationary night blindness, CSNB1. METHODS Twenty eyes of 11 patients with CSNB1 who had nondetectable standard ERG rod b-waves were involved in the study. Scotopic ERG response ampli...
The spectrum of quantum fluctuations of the electromagnetic field produced by quantized matter is determined. It is found that in a wide range of practically important frequencies, the spectral density of fluctuations exhibits an inverse frequency dependence. The magnitude of fluctuations produced by a conducting sample has a Gaussian distribution around its mean value which is inversely propor...
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The basic stages of development of the theory of superconductivity are traced. Despite of remarkable successes of theory, the physical explanation of the phenomenon of superconductivity-of the not fading electrical current in dissipative medium-is not exists until now. In the present paper on the basis of works (Klimontovich, 1990abc, 1999) the physical explanations of this phenomenon is consid...
In this paper, we discuss the process, layout and device technologies of FinFET to obtain high RF and analog/mixed-signal performance circuits. The fin patterning due to Side-wall transfer (SWT) technique is useful to not only fabricate narrow fin line but also suppress the fin width variation comparing with ArF and EB lithography. The H2 annealing after Si etching is useful for not only to imp...
A 900MHz balanced harmonic mixer for direct conversion receivers is fabricated in a 0.35 μm standard digital CMOS process. The self-mixing-induced DC offset is about 44dB lower than that of the conventional mixer. The inputreferred offset is reduced to the noise level. Specific techniques on flicker noise reduction are also discussed. At 3V power supply and -15.4dBm LO power, it achieves 13 dB ...
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