A Transformer-neutralized 0.6 V V DD 17–29 GHz LNA and its application to an RF front-end
Tóm tắt
A low-noise (LNA) amplifier that combines transformer-neutralization with bandwidth enhancement is introduced to enable a compact design capable of operating from a widely scalable supply voltage. A supply-voltage scalable 17–29 GHz ultra-wideband (UWB) multi-stage LNA prototype employing a single transistor between V
DD
and ground in all stages, and using the aforementioned techniques, is fabricated in 130 nm CMOS. The LNA achieves 15.4 dB (18 dB) peak gain, 5.5 dB (4.7 dB) minimum NF and −12 dBm (−11 dBm) worst case IIP3 while consuming 6 mW (15 mW) power while operating with a 0.6 V (1.2 V) supply voltage. A 17–27 GHz quadrature receiver prototype employing a modified version of this LNA is also fabricated, with potential applications in wireless sensor and vehicular radar applications. The receiver achieves 22.2 dB (25.4 dB) of peak conversion gain, 8.7 dB (5.7 dB) minimum NF and −17 dBm (−15 dBm) worst case IIP3 while consuming 10.2 mW (24 mW) power from a 0.6 V (1.2 V) V
DD
.
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