Gu Gu Gu Gu Gu Gu Gu Guerrilla RF, Inc. announced the formal release of the GRF5526, GRF5526W,GRF5536 and GRF5536W, the latest in a series of 1/4 W linear power amplifiers. These InGaP HBT amplifiers were designed specifically for 5G wireless infrastructure applications requiring exceptional native linearity over large 100MHz bandwidths and temperature extremes of -40degC to 105degC. Spanning frequency ranges of 2.3-2.7GHz and 3.3-4.2GHz respectively, the GRF5526 /GRF5526W and GRF5536 /GRF5536W are tuned to operate within the n7, n30, n38, n40, n41, n48, n53, n77, n88 and n90 5G new radio (NR) bands.

The devices typically deliver 23dBm of linear power over the entire -40degC to 105 degreesC temperature range while maintaining ACLR levels of better than -45dBc and EVM levels < 1% - 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 GRF5526 and GRF5536W are strategic additions to previously released 1/4 W PAs. The GRF5526, GR F5526W,GRF 5536W and GRF5536W come in pin-compatible 3mm x 3mm, 16-pin QFN packages.

Samples and evaluation boards are available for all four components. Prices start at $1.70 for the GRF5526/36 series, and $1.95 for the 'W' (AEC-Q100 qualified) variants (10,000-up, EXW USA).