“…Most of the achievements in the 2000s were based on the CMOS [49, 50, 56, 57, 63–67, 69, 70, 72–74, 77, 82–84, 86, 87, 90–93, 95, 96, 98, 100, 101, 103–105, 107–117, 119–124, 127–131, 133–138, 140–142, 144, 145, 147–151], BiCMOS [47, 55, 59, 60, 62, 78–81, 85, 118, 143], and HEMT [53, 71, 88, 89, 97, 106, 152] integrated circuits. Since the 1980s, usually but not always, HEMT has been employed for the frequencies higher than 10 GHz [21, 24, 27, 32, 36, 37, 39, 71, 89…”