Sumitomo Electric Designs Compact GaN HEMT Doherty Amplifier Using NI AWR Software

Next-generation 4G/5G telecommunication systems require power amplifiers (PAs) to operate with high efficiency over a wide frequency range in order to provide multiband and multi-standard concurrent operation. Therefore, it is important to provide high efficiency at maximum output power and at lower power levels over a wide frequency bandwidth. Sumitomo designers were tasked with developing an innovative high-power, wideband Doherty amplifier covering nearly 1 GHz of operation bandwidth at 2.25 GHz. This case study presents the use of NI AWR software in the design of this amplifier. Download the case study for the full story.