Guerrilla RF, Inc. announced the formal release of the GRF5607 and GRF5608, the first in a new class of 1/2 W linear power amplifiers being developed by the company. These InGaP HBT amplifiers were designed specifically for 5G wireless infrastructure applications requiring exceptional native linearity over temperature extremes of -40degC to 85degC. Spanning frequency ranges of 703-748MHz and 746-830MHz, respectively, the GRF5607 andGRF5608 are tuned to operate within the n12, n14, n18, n20 and n28 5G new radio (NR) bands.

The devices typically deliver 26dBm of linear power over the entire -40degC to 85 degreesC temperature range while maintaining ACLR levels of better than -45dBc and EVM levels < 1.2% - all without the aid of supplemental linearization schemes like digital pre-distortion (DPD). The ability to beat the -45dBc ACLR performance metric without DPD is critical for cellular applications like home and commercial repeaters/boosters, femtocells, and picocells, as well as cable loss compensators which are used in conjunction with automotive 'shark fin' antennas. In each of these use cases, the sensitivity to cost, power and size constraints prohibits the use of elaborate linearization techniques like DPD.

Instead, designers must rely on the power amplifier's native linearity to meet the stringent emissions mask requirements imposed by the latest 5G standards. The GRF5607 and GR F5608 come in pin-compatible 3mm x 3mm, 16-pin QFN packages. Pricing and Availability: Samples and evaluation boards are available now for the GRF5607 and GrF5608.

Prices start at $1.76 (10,000-up, EXW USA).