Intermodulation Analysis of Mathematical Amplifier

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This example uses a baseband-equivalent multitone signal as input to the Amplifier block. A Simulink® Slider Gain block enables you to vary the gain from 1 to 10.

The Input scope block displays the spectrum of the two-tone signal with gain set to the default 1.

The Output scope block shows the output spectrum of the two-tone input signal when the input signal passes through the Amplifier block, with the Method parameter set to Hyperbolic tangent. The example uses the default Amplifier block IIP3 (dBm) value of 30. It uses no AM/PM conversion. The example specifies thermal noise as Noise figure, for which it uses the default 3.01 dB.

To view the intermodulation performance at the output, double click the Slider Gain blocks and change the gain while the model is running.

See Also