An ultra-wide-band 3.110.6GHz LNA design in 0.18?m SiGe BiCMOS
A two-stage monolithic ultra-wide-band (UWB) low-noise-amplifier (LNA) designed for MB-OFDM in 0.18?m SiGe BiCMOS process is presented. With an optimized configuration combining advantages of RES-feedback and LC-ladder matching structure, the adjustable wide input matching is got and noise figure (NF) is controlled to a relevant low status. The measured S21 is from 7.6 to 14.2dB over the 311GHz operating band, NF is from 3.2dB to 4.8dB. With a 2.5V power supply, the LNA has an overall power consumption of 14.5mW.
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