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      "title": "Friis, H. T., “Noise Figures of Radio Receivers,” Proceedings of the IRE, Vol. 32, No. 7, pp. 419–422, July 1944",
      "section": "Cascade formula",
      "url": "https://ieeexplore.ieee.org/document/1695024",
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      "doi": "https://doi.org/10.1109/JRPROC.1944.232049"
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    {
      "title": "Pozar, D. M., Microwave Engineering, 4th ed., Wiley, 2012",
      "section": "Ch. 10 Noise and Nonlinear Distortion, §10.2 Noise Figure of a Cascaded System, p. 504",
      "supports": "Matched Friis cascade in the linear domain; available gain; cascade order",
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