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Port with Defined Frequency at Tone N (Swept Power): PORTFNS



This signal source is superseded and should be replaced with one of the following: AC_V for voltage sources, AC_I for current sources, or PORT_SRC for ports, with the Signal parameter set to this signal type.

The period for tone 1 sources is the inverse of the specified simulation frequency; see “Frequency Sweep Control” for details.


Name Description Unit Type Default
P Port number   0
Z Termination impedance Resistance 50 ohm
Freq Frequency for tone N Frequency 1 GHz
PStart Swept power magnitude start DB Power 0 dBm
PStop Swept power magnitude stop DB Power 0 dBm
PStep Swept power magnitude step DB 0 dB
Tone Tone number for the signal   2
*NHarm Maximum number of harmonics for this tone   0
*NSamp Sampling rate for this tone   1
PIN_ID Name identifier for pin Text  

* indicates a secondary parameter

Parameter Details

NHarm & NSamp. Specify a value of zero to indicate that these parameters do not override the values specified for the Tone X Harmonics and Tone X Over sample in the project or document Harmonic Balance Options settings. (Choose Options > Default Circuit Options and click the AWR Sim tab.) This only applies when the Tone parameter is set to 1, 2, or 3 for the element. An error is issued if these parameters are set to zero for a source with Tone equal to 4 or more.

Implementation Details

PORTFNS is similar to PORTFN, but more general in that a power sweep may be specified. The available source power is swept in increments of PStep, starting at PStart and ending at PStop.

NOTE: If a sinusoidal nonlinear source like this one has the parameter Ang=0 and is ideally terminated, then a nonlinear measurement (for example, Pcomp or Vcomp) made at the fundamental output of that source will have an angle of -90deg. This discrepancy is consistent with the definition of the sine wave sources (as in SPICE), and the Fourier-based harmonic component measurements. To avoid confusion, always measure or calculate the gain, and plot its angle.

The port number P is set automatically. If PIN_ID is not empty, text displays on the pin when it is instantiated as a subcircuit.


This element does not have an assigned layout cell. You can assign artwork cells to any element. See “Assigning Artwork Cells to Layout of Schematic Elements” for details.

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