期刊
JOURNAL OF LOW TEMPERATURE PHYSICS
卷 199, 期 3-4, 页码 867-874出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-019-02295-3
关键词
Fourier transform spectrometer; Kinetic inductance; Superconducting transmission lines; Millimeter-wave astronomy
An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) (similar to 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, Lk(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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