论文标题
量子电路的吸收过滤器：有效的制造和低温电源处理
Absorptive filters for quantum circuits: Efficient fabrication and cryogenic power handling
论文作者
论文摘要
我们提出了一种基于Eccosorb CR-124的吸收微波过滤器的有效制造方法。过滤器是用易于使用的零件制造的，其截止频率可以按其长度设置。它们表现出理想的属性，例如一个非常大而深的停止频带，拒绝至少超过120 dB，至少超过40 GHz，在通行证和停止频段中都超过10 dB的返回损失以及误差函数形状形状的步长响应而不会没有过时。非常低温下的测量表明，过滤器以100 s的时间尺度进行热效化，并且它们可以吸收高达100 NW的功率，而噪声温度保持非常凉爽，低于100 mk。这些特性使过滤器是混合器端口信号的低温过滤和过滤的理想选择。
We present an efficient fabrication method for absorptive microwave filters based on Eccosorb CR-124. Filters are fabricated from readily available parts and their cut-off frequency can be set by their length. They exhibit desirable properties such as a very large and deep stop band with rejection beyond 120 dB at least up to 40 GHz, more than 10 dB return loss in both the pass and the stop band as well as an error-function shaped step response without overshoot. Measurements at very low temperature show that the filters thermalize on a time scale of the order of 100 s and that they can absorb power as high as 100 nW with their noise temperature staying remarkably cool, below 100 mK. These properties make the filters ideal for cryogenic filtering and filtering of IF port signals of mixers.
