2N5109 Noise Figure Measurement

Breadboard

R1 set for 20mA Emitter Current R2 = 695Ω set for 10MHz Zin = 50Ω 10MHz VNWA Spectrum Analyzer NF=2.56dB Gain=15.74dB NF Spreadsheet VNWA DUT+SA NF Measurement Window Noise Figure measurement process

VNWA S11 and S21

VNWA S2P 12-term
2n5109-s2p-12-term.s2p

Schematic

HP Noise Figure Meter Verification

2N5109 +15.09 gain, 2.76 NF 2SC5551 +14.63 gain, 2.44 NF