A 16–43 GHz low-noise amplifer with 2.5–4.0 dB noise figure

This paper presents an ultra-broadband low-noise amplifier (LNA) operating from 16 to 43 GHz in a 0.25 pm SiGe:C BiCMOS technology. Across this band, the LNA achieves simultaneous low-noise performance (2.5–4.0 dB) and power matching (S11 < −10 dB) using dual-LC tank matching. The measured minimal noise figure is 2.5 dB at 26 GHz with an average value of 3.25 (±0.75) dB from 16 to 44 GHz. The best gain is 10.5 dB at 26 GHz with a 3-dB gain bandwidth from 16 to 43 GHz (90% fractional bandwidth). The measured input 1-dB compression point and input IP3 are better than −8.5 dBm and 1.8 dBm over the 16–43 GHz band, respectively, for a total power consumption of 24 mW.

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