Understanding the Basics of Low-Noise and Power Amplifiers in Wireless Designs

In a wireless design, two components are the critical interfaces between the antenna and the electronic circuits, the low-noise amplifier (LNA) and the power amplifier (PA). However, that is where their commonality ends. Although both have very simple functional block diagrams and roles in principle, they have very different challenges, priorities, and performance parameters. How so? The LNA functions in a ...

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