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MIXER P1dB simulation

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Henry-cool

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Hi

I am designing Double balanced Up-Conversion Mixer.

When you usually simulate P1dB in MIXER, you use one tone or two tone

as an input stimulus singal?

According to one tone or two tone input, P1dB result is changed 5~6dB or more.

Pls let me know it.
 

You use one tone for the compression point. The reason you got a lower value for two tones is that their peak voltages add.
 

Thank you for the reply.

I have another question.

How do I simulate LO-to-RF leakage or LO-to-IF leakage?

Pls let me know the method or related materials.

Thanks.
 

These leakages are caused by two things. One is the parasitic coupling of traces. This is hard to estimate or model. The other is from the parasitic capacitances and mismatch between component parts. You might try raising and lowering part parameters by a few percent.
 

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