Nadia Gargouri

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In this paper, we present a graphical optimization method in order to optimize the CMOS Ring oscillators. The design constraints equations of phase noise, tuning range, power consumption and start-up condition are presented in the same plan to find the optimal sizing of all components of CMOS ring oscillators. The optimized ring oscillator characteristics a(More)
This paper presents a voltage controlled ring oscillator (VCO) with a simpler temperature compensation circuit to produce a stable 4 GHz oscillation frequency. The proposed temperature compensation circuit is able to achieve a 89.25 % reduction in the variation of the center frequency of the uncompensated VCO and 108 ppm/°C temperature stability.(More)
Ultra wide band systems are considered as one of the most exciting technologies due to its capability of transmitting data over a wide frequency spectrum with very low power and high data rates. In any UWB receiver the low noise amplifier is the first stage. The LNA plays a crucial role in the whole reception chain. In this paper, we examine the performance(More)
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