This paper mainly describes some device technologies currently in development of 5G Analog Devices. The focusing on key areas for future integration with the 5G-ecosystem is given. By examining three distinct device technologies, we can see the advantages that will enhance and enable system implementation. The first is an advanced RF MEMs switch. The second is an Energy Harvester for IoT applications and the third is an RF SAW filter. At the end of this paper, the future application of three 5G components by military communication devices is discussed and predicted.