Active Tuning of the Resonance Frequencies of LC Bandpass Filters for Frequency Domain Multiplexed Readout of TES Detector Arrays
Active Tuning of the Resonance Frequencies of LC Bandpass Filters for Frequency Domain Multiplexed Readout of TES Detector Arrays
复制标题
用于 TES 探测器阵列频域复用读出的 LC 带通滤波器谐振频率的主动调谐
DOI：
10.1007/s10909-018-2055-4
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发表时间：
2018
影响因子：
2
通讯作者：
B. Jackson
中科院分区：
文献类型：
--
作者：
J. van der Kuur;L. Gottardi;H. Akamatsu;A. Nieuwenhuizen;R. den Hartog;B. Jackson
有效利用频域复用的可用频率空间是必不可少的空间为基础的TES检测器的应用，如雅典娜X射线望远镜上的X-IFU仪器。由于串扰的原因，在频率空间中相邻像素之间的距离存在下限，使得谐振频率的精确控制有助于使用可用的频率空间。独立地，从高效正弦偏置电压生成的角度来看，将频率放置在具有固定间距的网格上有助于避免非线性对检测器性能的影响。在LC带通滤波器的光刻生产中不可避免的公差和杂散电感设计中的裕度将谐振频率的相对精度限制为几倍。在本文中，我们将提出一种新的方法，它使用主动SQUID读出电子在室温下进一步微调的LC滤波器的谐振频率超出了制造限制。
Efficient use of the available frequency space for frequency domain multiplexing is essential for space-based TES detector applications such as the X-IFU instrument on the Athena X-ray telescope. For cross talk reasons, there exists a lower limit on the distance between neighbouring pixels in frequency space, so that accurate control of the resonance frequency helps to use the available frequency space. Independently, from the point of view of efficient sinusoidal bias voltage generation, placing the frequencies on a grid with a fixed spacing helps to avoid the effects of nonlinearity on the detector performance. Inevitable tolerances in the lithographic production of LC bandpass filters and margins in the design of stray inductances limit the relative accuracy of the resonance frequencies to a few times. In this paper we will propose a new method which uses the active SQUID readout electronics at room temperature to further fine-tune the resonance frequencies of the LC filters beyond the manufacturing limitations.