Antes, J.J.AntesLopez-Diaz, D.D.Lopez-DiazLewark, U.J.U.J.LewarkWagner, SandrineSandrineWagnerTessmann, AxelAxelTessmannLeuther, ArnulfArnulfLeutherKallfass, I.I.Kallfass2022-03-122022-03-122012https://publica.fraunhofer.de/handle/publica/3770742-s2.0-84875959485A high linearity I/Q bi-directional mixer MMIC using a Lange coupler to generate the 90° phase shift between the I and Q ports for E-band communication systems has been successfully realized in a 50nm mHEMT technology. The mixer achieves a measured conversion gain of -11 dB without pre- or post-amplification and an IF bandwidth of 6 GHz. An on-wafer linearity measurement shows no compression behavior up to an RF input power of 2 dBm, which is higher than the 1 dBcompression point of other reported E-band mixers.enMMICmillimeter wave integrated circuitsE-band wireless communicationE-band mixerI/Q down-converter667conference paper