Time Domain Waveforms, Large-Signal Analysis and Behavioral Model Extraction

Time Domain Waveforms and Large Signal Analysis

Time-domain analysis, or Waveform Engineering, allows the analysis of currents and voltages at the device input and output terminals in order to identify the DUT's mode of operation. This tool is useful in the study and design of advanced amplifier classes of operation including E, F, J and K and their inverses. Time-domain analysis can be achieved by using MT930GA with most commercial VNAs (see IVCAD release notes for supported models), or MT930GB with the PNA-X and NVNA application.

Load Pull with X-Parameters

Behavioral Model Extraction

Behavioral model extraction can be achieved by using MT930R1 EPHD module. The EPHD Model is based on Poly-Harmonic Distortion theory with a dynamic power expansion order. The methodology has been designed for simulation requirements where loading conditions are significantly different than those used during the measurement, and accurate interpolation and/or extrapolation is required. Based on successful industry implementation, the EPHD behavioral model has been proven to show excellent robustness and convergence even when a DUT sees a dynamic load impedance modulation, which is typical in the case of highly nonlinear classes of operation (i.e. Class C). In addition, behavioral model extraction can be achieved used MT930GB and Keysight X-Parameters.

Enhanced PHD (EPHD) Behavioral Model Extraction

Tour IVCAD Software Suite

IVCAD advanced measurement and modeling software, offered by Maury Microwave and AMCAD Engineering supports multiple load pull techniques including traditional load pull using external instrumentation, VNA-based load pull, active load pull and hybrid load pull. It performs DC-IV and pulsed-IV measurements and incorporates device modeling tools. Its modern visualization capabilities give users a greater ability to view, plot and graph measurement data in an intuitive manner.

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Application Notes and Data Sheets


High Efficiency Doherty Power Amplifier Design using Enhanced Poly-Harmonic Distortion (EPHD) Model 5A-065

Maury Application Notes Library

Maury Software and System Application Notes. Maury Application Notes Library