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X-Parameters

X-parameters* are mathematically correct extension of S-parameters to characterize the relative phase and amplitudes of harmonics generated by non-linear components under large input power levels at all ports. It correctly characterizes impedance mismatches and frequency mixing behavior to allow accurate simulation of cascading non-linear X-parameter blocks, such as amplifiers and mixers in wireless design. Keysight’s Advanced Design System (ADS) software is engineered specifically to simulate and generate X-parameter models of multi-port, non-linear components or devices under load pull conditions.

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* "X-parameters" is a registered trademark of Keysight Technologies. The X-parameter format and underlying equations are open and documented. For more information click here.

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Documents & Downloads

Video - Keysight NVNA and X-Parameter Simulation in ADS 
This 17 minute seminar discusses the NVNA technology and shows how it measures non-linear X-parameters, generates the PHD model, and imports it into ADS to do design, simulation, and verification with HB, CE, and Ptolemy.

Seminar Materials 2009-02-04

null FLV 7.52 KB
PHD X-Parameters Demo ADS Project File 
Advanced Design System (ADS) project file demoing NVNA and X-Paramaters

Seminar Materials 2008-09-12

null ZIP 4.37 MB
Video - Maury Load Pull with X-Parameters in Advanced Design System 
This 7 minute video shows how a measured load pull X-parameters MDIF file is directly transferred into ADS for simulation and design. The power added efficiency and power contours are simulated and displayed in ADS for optimum load pull design.

Seminar Materials 2009-02-04

null FLV 4.66 KB
PHD X-parameters Demo with Maury Load Pull 
Advanced Design System (ADS) project file demoing PHD X-Parameters with Maury LoadPull

Seminar Materials 2008-12-15

null FILE 4.34 MB