Mariem Bouraoui, I. Barraj, Amel Neifar, M. Masmoudi
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An Ultra-Wideband noise-reduction LNA With Variable Gain for Wireless Wake-up Receivers
The design of an ultra-wideband low-noise amplifier for wake-up receiver applications is discussed in this article. The LNA circuit is developed for the 3–9 GHz frequency ranges using RF-TSMC CMOS 0.18µm. To lower the noise figure, substrate resistance is added. The improved LNA achieves a low noise figure of 1.66 dB, which is 47% better than the original circuit, and a maximum power gain of 21.02 dB over the operating frequency range. The designed LNA dissipates 12.3mW at 1V.
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