Guerrilla RF Inc (GRF) of Greensboro, NC, USA – a provider of radio-frequency integrated circuits (RFICs) and monolithic microwave integrated circuits (MMICs) for wireless applications – has introduced the GRF5521, one of ten ¼W linear power amplifiers (PAs) released as part of its continued expansion into the cellular market. The indium gallium phosphide (InGaP) heterojunction bipolar transistor (HBT) amplifiers were designed for 5G/4G wireless infrastructure applications requiring exceptional native linearity over temperature extremes of –40°C to 85°C...
Source: https://www.semiconductor-today.com/new ... 1022.shtml