Sub-mm-Wave Superconducting On-Chip Filter Bank for Astronomy
- Pascual Laguna, A.
- Karatsu, K.
- Thoen, David
- Murugesan, V.
- Endo, A.
- Baselmans, J.J.A.
Publication date
November 2020
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
A superconducting on-chip microstrip filter bank spectrometer prototype for Far-Infrared (FIR) Astronomy is presented. The measurements showcase its capabilities towards moderate spectral resolution (f/\Delta f\sim 500) broadband FIR spectroscopy. In this sub-mm-wave filter bank, each spectral channel consists of an 'I-shaped' microstrip THz bandpass filter that couples the radiation to a Microwave Kinetic Inductance Detector (MKID) for a background limited detection and a scalable frequency-multiplexed microwave readout.</p
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