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An Accurate Method for Determining the IF Noise in SIS Heterodyne Receivers (2000)

Isaak, K. G. ; Withington, S. ; Yassin, G.

Springer

International journal of infrared and millimeter waves 21 (2000), S. 1427-1439

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ISSN: 1572-9559

Keywords: SIS receivers ; noise contributions

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We present a new method to determine the contribution of the IF-amplifier chain to the overall noise performance of an SE-based receiver. Using simulated I-V and IF power characteristics, we show that the standard method used to date to evaluate the IF noise can underestimate the contribution because of non-negligible curvature in the post-gap SIS I-V characteristic. We demonstrate that the new method is not susceptible to the post-gap curvature, and discuss its benefits and limitations to the accurate and precise evaluation of IF noise contributions.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1026405007342

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