An active multiplier-by-six S-MMIC for 500 GHz

A frequency multiplier-by-six based on a 35 nm gate-length metamorphic HEMT technology is presented. The S-MMIC offers an average output power of -15 dBm in the frequency range of 480 to 506 GHz and a maximum output power of -9 dBm at 506 GHz without additional amplification stages at an input power of 5 dBm. A spurious suppression of35 dBc at 500 GHz was achieved.