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The power amplifier (PA) – as either a discrete component or part of an integrated front end module (FEM) – is one of the most integral RF integrated circuits (RFICs) in the modern radio. In this application note, you will learn different techniques for testing PAs through an interactive application note with multiple how-to videos.
To address these linearity and efficiency requirements, system designers frequently use linearization techniques such as digital predistortion (DPD) to improve linearity and use dynamic power supply (DPS) techniques, such as envelope tracking (ET) or direct polar (DP) modulation, to improve efficiency.
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Learn more about power amplifiers
You can also read our “Basics of Power Amplifier and Front End Module Measurements" application note to learn how to perform simple measurements such as gain, noise figure, and intermodulation distortion (IMD).