94 GHz MMIC single balanced mixer for FMCW radar sensor application

  title={94 GHz MMIC single balanced mixer for FMCW radar sensor application},
  author={Sang-Jin Lee and Tae-Jong Baek and Min Han and Seok-gyu Choi and Dong-sik Ko and J B Rhee},
  journal={Proceedings of 2012 5th Global Symposium on Millimeter-Waves},
We present a 94 GHz MMIC single balanced mixer using the branch line couplers and 0.1 μm GaAs-based metamorphic high electron mobility transistors (MHEMTs) for FMCW radar sensor application. The mixer was designed in a resistive structure because of no drain bias and low DC currents. Two single ended mixers in the fabricated MMIC single balanced mixer share gate bias circuits. The fabricated mixer shows a conversion loss of 14.7 dB at 94 GHz, and the LO to RF isolation of 34.2 ~ 35.2 dB in LO… CONTINUE READING


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