Presentation on RF Predistortion of Power Amplifiers - Agilent ...
Presentation on RF Predistortion of Power Amplifiers - Agilent ...
Presentation on RF Predistortion of Power Amplifiers - Agilent ...
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ADS <strong>RF</strong> Predistorti<strong>on</strong> Circuit<br />
Predistorter<br />
Predistorter<br />
<strong>RF</strong> <strong>RF</strong> Input Input<br />
<strong>Power</strong> <strong>Power</strong> Amplifier Amplifier<br />
<strong>RF</strong> <strong>RF</strong> Output Output<br />
ACI ACI <strong>Power</strong> <strong>Power</strong> Detector Detector<br />
LMS LMS<br />
Adaptati<strong>on</strong> Adaptati<strong>on</strong><br />
11<br />
Here is the Advanced Design System circuit schematic for the <strong>RF</strong> predistorter. The<br />
adaptati<strong>on</strong> technique is based <strong>on</strong> the power-minimizati<strong>on</strong> method. The rectangular<br />
implementati<strong>on</strong> is used for the complex gain adjuster, and the input c<strong>on</strong>sists <strong>of</strong> a two-t<strong>on</strong>e<br />
modulati<strong>on</strong>. The least-mean-squared adaptati<strong>on</strong> technique is used.
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