Envelope tracking is a technique used to enhance the efficiency of a power amplifier used in wireless systems. In some applications, ET can deliver better power efficiency compared to the best ...

Envelope tracking (ET) power amplifiers and supply modulators represent a pivotal advance in modern radio frequency (RF) design, particularly for wireless communications. These systems dynamically ...

Envelope tracking technology optimises the efficiency of radio frequency (RF) power amplifiers by dynamically adjusting the supply voltage in accordance with the amplitude envelope of the input signal ...

One of the first lessons learned in electronics in general and analog circuits in particular is the importance of a solid, stable, stiff DC-power rail. It’s axiomatic that a rail which is noisy, ...