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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Design Examples >
Nexxim RF Design Examples >
   Nonlinear Loadpull Amplifier Example >
       NLAMP with the LPC Demo File           

NLAMP with the LPC Demo File

The LPC format is an alternative to the LPD format.

1. Select the LPC_Demo circuit. The schematic appears:

The source has a characteristic impedance of 50 ohms, and the output port impedance has been set at (57.5949 - j32.887), matching one of the values in the LPC file.

2. Click on the NL AMP element and open its Properties:

The new loadpull_file is NLAMP_demo.lpc. The source frequency given by project variable freq3 is 1GHz, the frequency at which the file data were derived. A second, nearby frequency given by project variable freq4 is used in two-tone harmonic balance analysis. The sinusoidal sources and the analysis setups have been modified to use freq3 and freq4.

The model_switch is set for the frequency domain implementation. The time domain implementation gives the same results for this LPC file.

3. Right-click on Analysis in the Project window and select Analyze from the menu. This runs all four analyses.

4. When all four analyses have completed, click on the one tone Report:

5. Click on the loadpull Smith Contour Report:

6. Click on the power_sweep Report:

7. Click on the two tone Report:

8. When you are finished with the demo, you may save and close the project.

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