TITLE

Millikelvin thermal and electrical performance of lossy transmission line filters

AUTHOR(S)
Slichter, D. H.; Naaman, O.; Siddiqi, I.
PUB. DATE
May 2009
SOURCE
Applied Physics Letters;5/11/2009, Vol. 94 Issue 19, p192508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the scattering parameters and Johnson noise emission of low-pass stripline filters employing a magnetically loaded silicone dielectric down to 25 mK. The transmission characteristic of a device with f-3 dB=1.3 GHz remains essentially unchanged upon cooling. Another device with f-3 dB=0.4 GHz, measured in its stopband, exhibits a steady state noise power emission consistent with a temperature difference of a few millikelvin relative to a well-anchored cryogenic microwave attenuator at temperatures down to 25 mK, thus presenting a matched thermal load.
ACCESSION #
39785796

 

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