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A 3.1-5 GHz Ultra Wideband (UWB) CMOS low noise amplifier (LNA) with high gain and noise cancellation is presented. The LNA is composed of two stages-an input common-gate stage with a resonant load at 3.1 GHz, driving a common source stage with a resonant load of 5 GHz. Noise cancellation is achieved through the forward feedback technique, and an output buffer has been added for test purposes. The...
The candidate topologies for low-power, wideband LNAs are analyzed in this paper, and a novel LNA topology for the 3.1–5 GHz UWB frequency band is presented. The LNA uses subthreshold biasing and employs its Miller capacitance as part of a Butterworth-type bandpass filter for input impedance matching. The LNA achieves a power gain of 14.4 dB with S11 less than −10 dB across the 3.1–5 GHz frequency...
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