Norton Amplifier

Reference
Test Bench
Vcc = 12VDC
2N2219A
2xFT50-43 1:11:4 turn Transformer
Ie = 13.3mA



Step Attenuator = 0dB
Pin = -28dBm
Gain = 10.7dB



Step Attenuator = 20dB
Pin = -5dBm
Gain = 11dB
IP3 = 33.6dBm



Step Attenuator = 0dB
Combiner input ports terminated with 50Ω loads
Average = -95.47dBm




Step Attenuator = 0dB
Step Attenuator input port terminated with 50Ω load
Average = -97.74dBm



VNWA S21, Through Calibrated for Direct Gain Display
Pin ~= -17dBm (VNWA Port 1 power)



Transformer Evaluation
VNWA S11 Input Z and S21 Gain


2 x FT50-43 1:11:4 Turn


FT50-43 1:11:4 Turn


FT50-43 2:22:8 Turn



FT50-43 11:4 Turn Transformer Measurement

  • Load = 710Ω Measured
  • VNWA OSL Calibration using 710Ω Load


SimSmith Transformer Model with Ferrite Loss

D1 Text 
//Ferrite
$data=file[]; // Fair-Rite File
mui;Hi;
$mup = $data.R;
$mupp = $data.X;
$Ls = Hi * ($mup/mui);
$Xs = 2*Pi * G.MHz * 1M * $Ls;
$Q = $mup / $mupp;
$Rs = $Xs / $Q;
Rp = ($Q^2 + 1) * $Rs;
R1.ohms = Rp;
A.Hr = Hi;
A.Hl = 14.0625 * Hi;



FB-43-1502 1:5:3 Turn Transformer Measurement


VNWA S11 Transformer Measurement

  • Load = 349.3Ω Measured
  • VNWA OSL Calibration using 349.3Ω Load


SimSmith Transformer Model with Ferrite Loss