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This paper proposes a 0-33.3Mb/s front-end of the energy detector for 3.1-4.8-GHz impulse-radio ultra-wideband (IR-UWB). Fully differential architecture with the non-coherent on-off-keying (OOK) modulation is adopted. Targeting at -98dBm sensitivity, the low noise amplifier (LNA) is designed to achieve <;3.5dB noise figure, <;-10dB S11, and >15dB gain. Interleaved integrating scheme relaxes...
This paper analyzes architectures of the low noise amplifier (LNA) for orthogonal-frequency-division-multiplexing ultra-wideband (OFDM-UWB) application. Until now, most UWB LNA implementations are focusing how to realize a single LNA covering the whole frequency band. In this work three popular wide-band LNA architectures are compared to a proposed parallel LNA architecture in which different amplifiers...
This paper analyzes the architecture of wideband low noise amplifier (LNA) for multi-band orthogonal frequency division multiplexing modulation (MB-OFDM) ultra-wideband (UWB) system. Noise matching and input impedance matching are compared among different LNA architectures. Power consumption and area for different kinds of LNA architectures are also compared through the figure of merit (FOM).
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