Looking back at 2014, a few key technologies were prevalent in the news. 5G research and prototyping took off as investment in this area has quickly expanded with support from industry and academia. This happened at the same time as the 4G rollout gathered steam, especially in the Chinese market where demand for components has been strong. CMOS continued to advance in the RF marketplace by showing off single chip RF fronts ends for 4G handsets and integrated mmWave AESA chips with up to 16 elements. Although CMOS has taken more market share in the RF marketplace along with GaN, GaAs still has a major presence in our industry due to its flexibility and already established manufacturing infrastructure. As the focus for more efficient amplifiers continued, envelope tracking came into the mainstream as a MIPI standard.