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Nonlinear Loadpull Amplifier Example

Nonlinear Loadpull Amplifier Example

The nonlinear loadpull amplifier component (NLAMP) uses data-driven loadpull values to generate a behavioral amplifier model. The user supplies the loadpull data in the LPD format (from Focus Microwaves, Inc.) The data gives the output power for a range of output impedances at constant input power and at a given frequency. To predict the non-linear behavior of the amplifier the current version also provides the third order intermodulation products. The second-order IMD products are not provided.

The NLAMP component supports one-tone and two-tone harmonic balance simulation, including a sweep of input power. You can use Nexxim loadpull analysis to display the behavioral amplifier model as a Smith chart. For additional information, see Nonlinear Loadpull Amplifier.

The topics for this example include:

Open the NLAMP Design

One Tone HB with NLAMP

Power Sweep with NLAMP

Two Tone HB with NLAMP

Loadpull Analysis of NLAMP

Power Sweep using Time Domain Implementation

NLAMP with the LPC Demo File

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