Superconducting Coplanar Waveguide Filters for Submillimeter Wave On-Chip Filterbank Spectrometers
Abstract
We show the first experimental results which prove that superconducting NbTiN coplanar-waveguide resonators can achieve a loaded Q factor in excess of 800 in the 350 GHz band. These resonators can be used as narrow band pass filters for on-chip filter bank spectrometers for astronomy. Moreover, the low-loss coplanar waveguide technology provides an interesting alternative to microstrip lines for constructing large scale submillimeter wave electronics in general.
- Publication:
-
Journal of Low Temperature Physics
- Pub Date:
- July 2016
- DOI:
- 10.1007/s10909-016-1579-8
- Bibcode:
- 2016JLTP..184..412E
- Keywords:
-
- Spectroscopy;
- Filters;
- Submillimeter wave;
- Astronomical instrumentation;
- Microwave kinetic inductance detectors