RF Power Amplification 101: Amplifier Classes

RF Power Amplification 101: Amplifier Classes

October 19, 2021

Aerospace & Defense, Cellular Infrastructure, RF Energy, SatCom

RF power amplification (PA) is the key to achieving wireless application requirements, such as in ubiquitous communication technologies and radar. To understand the interplay of tradeoffs with requirements, including efficiency and power consumption, range, and linearity, the first in this series of articles on RF PA essentials dealt with basic waveform shapes and the formulae for calculating power supplied, RF output power, and efficiency. That article assumed idealities in waveform shapes — no over- or undershoots — and an ideal transistor.

We continue with these assumptions in this, the second part, as we look at the amplification mechanism, how amplifiers can be classified by circuits needed to generate various waveform shapes, and how the output waveform affects efficiency.

Related Content

RF Technical Articles

Modern Tactical Radio Needs GaN

Military modernization continues relentlessly. An increase in military spending is driving procurement of advanced wireless communications systems across land, air, and maritime platforms.


RF & Microwave Support

Allow us an opportunity to assess your project and help bring your vision to market faster.

About our Team of Experts

Richardson RFPD has a team of over 50 technical resources available to provide design assistance on a variety of topics.  Although there are too many to name, we have highlighted specific topics that provide a representation of our support.