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RFLib Mixer Verilog-A model IIP3 simulation Issues

RFQuery over 13 years ago

Hi,

I was simulating the Mixer model in Verilog-a given in rfLib.

It is terminated with ports of 50 ohm at its input and output.

I did PSS and PAC simulation to find the IIP3 of the Mixer. I used Mixer Gain=20dB, LO power=10 dBm, Input Resistance = 50 Ohm, Output Resistance=50 Ohm Input referred IIP3=13dBm, All Isolation (from LO-RF...etc) = 50dB.

But the IIP3 curve is NOT giving the desired IIP3 = 13 dBm. The 1st Harmonic curve is almost Flat. I have attached the waveform file

RFQuery over 13 years ago

I am also attaching theNetlist file.
- input_scs.txt
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RFQuery over 13 years ago

The schematic file is attached
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adriancb over 13 years ago

Hi,
Have you ever received any feedback on this thread?Thanks.
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