E-band active frequency-multiplier-by-eight MMIC with >20 dB conversion gain and excellent spurious suppression

We present an active eight-fold frequencymultiplier with more than 20 dB conversion gain. The output 3-dB bandwidth is 72 to 85GHz, forming a tunable frequency source within the 71 to 76 and 81 to 86GHz communication bands with a saturated output power of 10 dBm for LO generation with an input power of only -8 dBm. The suppression of unwanted harmonics is better than 37 dBc. The MMIC is realized in a metamorphic HEMT technology with 100 nm gate-length.