Hello,
I just read about a new Agilent Network Analyzer capable of doing nonlinear characterizations of amplifiers, etc. with X-parameters. These X-parameters could be imported into ADS seemingly.
My questions:
1.) What are X-parameters? How are they measured? What do they represent? I suppose they are not "only" power dependent S-parameters?
2.) I can't find anything about X-parameters in the ADS documentation. When they be able to be imported into ADS? Will there be a new nonlinear behavioural model implemented in ADS?
Best regards,
Thomas
I just read about a new Agilent Network Analyzer capable of doing nonlinear characterizations of amplifiers, etc. with X-parameters. These X-parameters could be imported into ADS seemingly.
My questions:
1.) What are X-parameters? How are they measured? What do they represent? I suppose they are not "only" power dependent S-parameters?
2.) I can't find anything about X-parameters in the ADS documentation. When they be able to be imported into ADS? Will there be a new nonlinear behavioural model implemented in ADS?
Best regards,
Thomas
X-parameters are used to model 2-port devices [think power amps :o ] under large signal drive conditions. They are a superset of linear small signal S-parameters, and capture the fully complex fundamental & harmonics, both incident & reflected, ports 1 & 2.
What good are they? :P
You can import them into ADS 2006U3 or later releases to provide cascadable non-linear modeling of your amplifier. Includes amplitude & phase of harmonics, under swept freq & power conditions.
For the first time now you can make accurate hot-S22 measurements of your power amp, under actual drive-level conditions, AND deliver a fast, numerically stable, high-fidelity simulation model to design your matching circuits, bias networks, & cascade chain around.
For a press release with more info, please visit....
[url]http://www.agilent.com/about/newsroom/presrel/2008/02jun-em08072.html
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You will need to contact your local EEsof applications engineer for more info. ;D