ip3_out()
This measurement determines the output third-order intercept point (in dBm) at the system output port
Syntax
y = ip3_out(vOut, fundFreq, imFreq, zRef, Mix)
Arguments
| Name | Description | Range | Type | Default | Required |
|---|---|---|---|---|---|
| vOut | signal voltage at the output port | [0, ∞) | real, complex | yes | |
| fundFreq | harmonic frequency indices for the fundamental frequency | (-∞, ∞) | integer array | yes | |
| imFreq | harmonic frequency indices for the intermodulation frequency | (-∞, ∞) | integer array | yes | |
| zRef | reference impedance | (-∞, ∞) | real, complex | 50.0 | no |
| Mix | consists of all possible vectors of harmonic frequency (mixing terms) in the analysis † | (-∞, ∞) | integer array | no | |
| † It is required whenever the first argument is a spectrum obtained from an expression that operates on the voltage and/or current spectrums | |||||
Examples
y = ip3_out(vOut, {1, 0}, {2, -1}, 50)
Defined in
$HPEESOF_DIR/expressions/ael/rf_system_fun.ael
See Also
Notes/Equations
To measure the third-order intercept point, you must setup a Harmonic Balance simulation with the input signal driving the circuit in the linear range. Input power is typically set 10 dB below the 1 dB gain compression point. If you simulate the circuit in the nonlinear region, the calculated results will be incorrect.
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