Millikelvin thermal and electrical performance of lossy transmission line filters

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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-3dB=1.3 GHz remains essentially unchanged upon cooling. Another device with f-edB=0.4 GHz, measured in its stopband, exhibits a steady state noise power emission consistent with a temperature difference of a few mK relative to a well-anchored cryogenic microwave attenuator at temperatures down to 25 mK, thus presenting a matched thermal load.

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Slichter, Daniel; Naaman, Ofer & Siddiqi, Irfan March 11, 2009.

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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-3dB=1.3 GHz remains essentially unchanged upon cooling. Another device with f-edB=0.4 GHz, measured in its stopband, exhibits a steady state noise power emission consistent with a temperature difference of a few mK relative to a well-anchored cryogenic microwave attenuator at temperatures down to 25 mK, thus presenting a matched thermal load.

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  • Journal Name: Applied Physics Letters

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  • Report No.: LBNL-1906E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 960246
  • Archival Resource Key: ark:/67531/metadc925662

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Office of Scientific & Technical Information Technical Reports

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  • March 11, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Oct. 2, 2017, 4:24 p.m.

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Slichter, Daniel; Naaman, Ofer & Siddiqi, Irfan. Millikelvin thermal and electrical performance of lossy transmission line filters, article, March 11, 2009; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc925662/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.