Quality factor of a transmission line coupled coplanar waveguide resonator
arXiv:1710.01998 · doi:10.1140/epjqt/s40507-018-0066-3
Abstract
We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the characteristic mode impedances and coupling coefficients of an asymmetric multi-conductor transmission line. Leading order terms for the external quality factor and frequency shift are calculated. The obtained analytical results are relevant for designing circuit-QED quantum systems and frequency division multiplexing of superconducting bolometers, detectors and similar microwave-range multi-pixel devices.
8 pages, 4 figures
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Cited by in corpus (13)
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