An On-Chip Superconducting Kinetic Inductance Fourier Transform Spectrometer for Millimeter-Wave Astronomy
An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) ( ∼ 620 mm) using two coupling probes. The signal propagating on one of the STLs is phase-shifted with respect to the other line with a bias current that affects the nonlinear dependence of kinetic i...
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Veröffentlicht in: | Journal of low temperature physics 2020-05, Vol.199 (3-4), p.867-874 |
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Hauptverfasser: | , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) (
∼
620 mm) using two coupling probes. The signal propagating on one of the STLs is phase-shifted with respect to the other line with a bias current that affects the nonlinear dependence of kinetic inductance,
L
k
(
I
)
of the STL material. Here we describe the design and simulation of a superconducting on-chip FTS coupled to a dual polarization W-band (90–110 GHz) waveguide. These devices have applications in ground-based and space-based millimeter-wave spectral surveys. |
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ISSN: | 0022-2291 1573-7357 |
DOI: | 10.1007/s10909-019-02295-3 |