All Digital Transmitter with GaN Switching Mode Power Amplifiers

This presentation will introduce the recent development of wideband/multiband fully digital transmitter and all digital array technologies, which are believed to be one of the enabling technologies for future beyond 5G wireless transmitters. Several prototypes and demonstrated at sub-6GHz will be given. In addition, GaN based switching mode and RF-DAC based radio front-end, which are essential parts of digital transmitters will be introduced too.