RFFE Integrated Design Key Determinant for Next-Generation Mobile Devices

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By Malik Saadi | 3Q 2017 | IN-4756

 

RF Component Approaches and Architectures Challenged as Mobile Moves to Next-Generation Networks

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Until the deployment of early LTE networks, the design of the RF system was fairly simple and straightforward, involving a relatively small number of front-end components. However, the design of the RFFE has since become increasingly more complex with the upgrade to LTE-Advanced. These latest technologies have enabled 4G networks to become efficient and reliable through the use of carrier-aggregation (CA), MIMO, diversity, and envelope tracking.

In addition, the need to support a multitude of LTE bands in myriad combinations across the globe has amplified RF design complexity, leading to the addition of a greater number of RF components needed to support these bands and permutations....

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