Linearization of RF Frontends

Widespread adoption of higher order modulation schemes to enable higher data throughput in communication links places increasingly stringent demands on the frontend. Classic linearity metrics, figures of merit or rules-of-thumb for frontend components (e.g. IP3 or "operating at 20dB back off from P-1dB") become decreasingly relevant and may even be misleading. 

Front End LinearizationIn some industries and applications, frontend linearization has long been identified as a critical differentiator. In those applications with their particular industry dynamics, designing a linearized RF frontend or even using a specific linearized architecture is now pre-requisite.

In many industries and applications, rapidly improving component technologies coupled with increasingly demanding modulation formats means that a significant gap has opened up between state-of-the-art and potential. That gap can be bridged, at least in part, by considering the use of linearization. This subject matter will become the target of significant R&D spending in a wider range of applications.