Low-Noise Room-Temperature and Cryogenic Mixers for 80-120 GHz

@inproceedings{Kerr1975LowNoiseRA,
  title={Low-Noise Room-Temperature and Cryogenic Mixers for 80-120 GHz},
  author={Arthur R. Kerr},
  year={1975}
}
A description is given of two new mixers designed to operate in the 80-120-GHz range on the 36-ft radio telescope at Kitt Peak, Ariz. It is shown that for a hard-driven diode the parasitic resistance and capacitance are the primary factors influencing the design of the diode mount. A room-temperature mixer is described which achieves a single-sideband (SSB) conversion loss (L) of 5.5 dB, and a SSB noise temperature (T/sub m/) of 500 K (excluding the IF contribution) with a 1.4-GHz IF. A… CONTINUE READING

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