Lewark, U.J.U.J.LewarkTessmann, AxelAxelTessmannWagner, SandrineSandrineWagnerLeuther, ArnulfArnulfLeutherZwick, T.T.ZwickKallfass, I.I.Kallfass2022-03-122022-03-122014https://publica.fraunhofer.de/handle/publica/385534For broadband signal generation in the high millimeter-wave range we present a frequency multiplier-by-eight MMIC. The measured output tuning bandwidth from 220 to 320GHz almost covers the entire WR-03 waveguide band (220-325GHz). On chip interstage and post amplification result in a maximum output power of 2.5 dBm at an output frequency of 260GHz. Due to the high multiplication factor in-band harmonics are measured with a frequency-selective method and verify the dominant presence of the wanted eighth harmonic. The MMIC is realized in a metamorphic high electron mobility transistor (mHEMT) technology with a gate length of 35 nm.enmillimeter-wave integrated circuit (MMIC)frequency multipliermillimeter-wave FET integrated circuitsWR-3 band667conference paper