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چکیده
In this paper, the significance of linearity for UWB front-end circuit is discussed. The effects of strong narrow band interferer on UWB signal are investigated. Wideband linearization techniques for UWB LNA are first proposed in this work. A high linearity UWB LNA is designed in TSMC 0.18μ CMOS process The simulation results show that the designed LNA exhibits very high IIP3 (6.9~13.8 dBm) while maintaining low noise figure (3~6 dB) over the design frequency range (3-5 GHz). Key-Words: Ultra-wideband, receiver, low noise amplifier (LNA), distortion, high linearity, RFIC, CMOS
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