Cree and MaxLinear achieve breakthrough 5G performance

June 23, 2021 // By Jean-Pierre Joosting
Cree and MaxLinear achieve breakthrough 5G performance
New GaN on SiC linearization technology enables 5G base stations to support more high-speed data for mobile users.

MaxLinear  and Cree, through its Wolfspeed business, have announced breakthrough performance when combining MaxLinear’s ultra-wideband linearization (MaxLin) and Cree’s Wolfspeed® Gallium Nitride (GaN) on SiC mid-band power amplifiers. The combination increases wireless capacity of a 5G base station, supporting more simultaneous users and increasing the speed of data transmissions.

The use of GaN on SiC with effective linearization accelerates the rollout of 5G by enabling significant power, thermal, and cost savings through more efficient wireless transmission. The power savings from combining Cree’s highly efficient GaN on SiC power amplifiers with a highly effective linearization implemented by MaxLinear can be hundreds of watts for the massive MIMO radios that 5G demands.

“Our GaN on silicon carbide power amplifiers are designed to achieve high efficiency with extremely wide instantaneous bandwidth in a very small form factor at the newly released 5G spectrum,” said Gerhard Wolf, senior vice president and general manager of RF at Cree | Wolfspeed. “Working with MaxLinear’s solution, this technology demonstrates a significant step forward in achieving outstanding linearity performance and will help wireless providers deliver a superior level of performance and service to mobile customers.”

The new technology tackles a substantial industry challenge — implementing radio units with 5G massive MIMO arrays such as 64x64 or 32x32, while maintaining a reasonable size, weight, and power. The newer 5G spectrum is at a higher carrier frequency and has wider bandwidths, making it more challenging to achieve high power efficiency for radio units.

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