mA vs OIP3 Resistor Feedback

mA vs OIP3 Transformer Feedback

Current vs. P1dB measurements Red trace = P1dB approximation * 2 Black trace = P1dB approximation + 16 KN5L-2N5109 data using KN5L Amplifier referenced below SSA3021X Spectrum Analyzer OIP3 measurement process $1 = 49.9Ω resistor voltage $2 = |3rd| dBm AA7U data using W7IUV Amp design, Revision 6, with 2SC5551 and 2N5109 transistors OIP3 measurement process $1 = measured current mA $2 = Measured OIP3 dBm

KN5L Amplifier

KN5L Amplifier Schematic

Test Bench