Features
Power_electronics Features

BEV advancements are driving sales, but vehicle safety and reliability will ensure long-term viability
Innovative power architectures using power modules provide power redundancy and improve overall safety and system performance By Patrick Kowalyk, Automotive FAE,Vicor
More details...
AC/DC power factor correction module offers up to 1,512W
A full brick package developed by TDK-Lambda, the PF1500B-360, is for high voltage distributed power architectures
More details...
Power Electronics Europe News
 
Power amplifiers are designed for 5G wireless infrastructures

The InGaP HBT (heterojunction bipolar transistor) power amplifiers from Guerrilla RF provide 23dBm of natively linear output power for 5G applications that cannot use digital pre-distortion (DPD), crest factor reduction or envelope tracking.

The 0.25W linear power amplifiers are designed specifically for 5G wireless infrastructure applications.

Spanning frequency ranges of 2.5 to 2.7GHz and 3.3 to 4.2GHz respectively, the GRF5526 and GRF5536 are tuned to operate within the n7, n30, n38, n40, n41, n48, n53, n77, n88 and n90 5G new radio (NR) bands. They typically deliver 23dBm of linear power over the entire -40°C to 85°C temperature range while maintaining ACLR (adjacent channel leakage ratio) levels of better than -45dBc, IMD3 levels < -20dBm, EVM levels < 1.5%, and power added efficiency in the 14% range without requiring supplemental linearisation schemes like DPD.

The ACLR metric without the need for DPD is particularly significant 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. All of these cases are sensitive to cost, power and size constraints which limits the use of elaborate techniques like DPD, explains the company. Designers must rely on the power amplifier’s native linearity to meet the stringent emissions mask requirements imposed by the latest 5G standards.

The power amplifiers are designed to be footprint compatible with the company’s other power amplifiers and are available in pin-compatible 3.0 x 3.0mm, 16-pin QFN packages.

Samples and evaluation boards are available now for the GRF5526 and GRF5536.  

 



View PDF
 
Go Back   
Newsletter sign up

Sponsors