Millikelvin thermal and electrical performance of lossy transmission line filters
Millikelvin thermal and electrical performance of lossy transmission line filters
复制标题
有损传输线滤波器的毫开尔文热性能和电性能
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
I. Siddiqi
中科院分区：
文献类型：
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作者：
D. Slichter;O. Naaman;I. Siddiqi
我们报告的散射参数和约翰逊噪声发射的低通带状线滤波器采用磁加载硅介质下降到25 mK。f_{-3dB}$= 1.3GHz的器件的传输特性在冷却后基本保持不变。另一个器件f_{-3dB}$=0.4 GHz，在其阻带内测量，表现出稳态噪声功率发射，与温度低至25 mK的良好锚定低温微波衰减器相比，温度差为几mK，因此呈现匹配的热负载。
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 $f_{-3dB}$=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.