A 200-300 GHz SIS mixer-preamplifier with 8 GHz IF bandwidth

@article{Lauria2001A2G,
  title={A 200-300 GHz SIS mixer-preamplifier with 8 GHz IF bandwidth},
  author={E. Lauria and A L Kerr and M. W. Pospieszalski and S.-K. Pan and J. Effland and A. W. Lichtenberger},
  journal={2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157)},
  year={2001},
  volume={3},
  pages={1645-1648 vol.3}
}
A 200-300 GHz SIS mixer-preamplifier with an IF bandwidth of 8 GHz Is described. The mixer uses Nb/Al-oxide/Nb tunnel junctions in a circuit with low IF capacitance and inductance. The mixer block is designed to mount directly on the body of the 4-12 GHz InP HFET preamplifier and mixer bias is provided through the input circuit of the preamplifier. At a LO frequency of 230 GHz, the mixer-preamp gain is 30-35 dB, and the DSB receiver noise temperature is 45-57 K across the whole IF band. This is… CONTINUE READING
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