Noise equivalent temperature difference of a superconducting integrated terahertz receiver

  • R. V. Ozhegov
  • O. V. Okunev
  • G. N. Gol’tsman
  • L. V. Filippenko
  • V. P. Koshelets
Physical Processes in Electron Devices

Abstract

The dependence of the noise equivalent temperature difference (NETD) of a superconducting integrated receiver (SIR) on the receiver noise temperature and the inputsignal level has been investigated. An unprecedented NETD of 13±2 mK has been measured at a SIR noise temperature of 200 K, intermediate-frequency bandwidth of 4 GHz, and time constant of 1 s. With a decrease in the input signal, an improvement in the NETD is observed. This effect is explained by a reduction in the influence of the instabilities of the receiver power supply and the amplification circuit that occur when the input signal is decreased.

PACS numbers

74.40.+k 85.25.-j 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • R. V. Ozhegov
  • O. V. Okunev
  • G. N. Gol’tsman
  • L. V. Filippenko
  • V. P. Koshelets

There are no affiliations available

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