A Review of 5G Power Amplifier Design at cm-Wave and mm-Wave Frequencies

Figure 8

Schematic of the 28 GHz PA in 28 nm bulk CMOS: (a) two-stage transformer-coupled design; (b) push-pull stage with capacitive neutralization capacitor (cross-coupled) and single-ended source degeneration inductor [28], © 2017 IEEE.

(a)

(b)