Two-stage Cascode Class-AB RF PA driver: parameter optimization

  Two-stage Cascode Class-AB RF PA Driver targeting 5G n78 (3.5 GHz) in TSMC 28nm RF CMOS

Difference between this html TSMC 28nm RF CMOS and TSMC N3E jsx closed-form 

SMITH Chart,  Explain Smith Chart, S-parameters (read it if you are not familiar with these concepts.)

Build Sub 6 GHz Power Amplifier Optimizer with Die Synced

share, artifact (Closed-Form)

benchmark

impedance match

2-stage RF PA driver 

paper, level of physics

artifact

Optimizer with Load-Pull Contours (analytical)

Optimizer with Load-Pull Contours (MNA mixed) share

Newton DC+ Multi-Harmonic Balance log

the design (2 by 2, 2 by 2 re-styled, Thermal model), log, ∠Γ_3f₀ phase (deg) · open=0, -170 deg

margin-first build, Thermal model

design choices

ASAP7 json1 json2 json3 share, benchmark prompt recipes

ASAP7 Class-F (auto-load)

dual attractors

basin transitions

GaN, "Calibrated for 0.25 µm GaN-on-SiC RF process (Wolfspeed G2 / WIN NP25 class)" for base station

artifact (topology change, single device)