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 ...
To address the challenge of improving power-added efficiency (PAE) for high-powered amplifiers, Analog Devices developed the ADL5511 TruPwr rms and envelope detector. The chip combines two RF ...
Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz. RF ...
Two things have been overlooked with phasing amplitude modulation. One is the importance of pulse modulation; the other is that logic gates can be used for analog signal processing. Both of these ...
Gerard Wimpenny, chief technology officer at Cambridge-based power technology company Nujira describes the special challenges of testing envelope tracking power amplifiers for mobile phone systemsAs ...
The process of designing traditional fixed-supplypower amplifiers has been well-establishedfor many years. Well-definedmetrics for performance assessment exist,and the amplifier designer’s job is to ...
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