Quality factor of a transmission line coupled coplanar waveguide resonator

Quality factor of a transmission line coupled coplanar waveguide resonator

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. Leadi...

Full description

Bibliographic Details
Main Authors: Ilya Besedin, Alexey P Menushenkov
Format: Article
Language:English
Published: SpringerOpen 2018-01-01
Series:EPJ Quantum Technology
Subjects:
coplanar waveguide
microwave resonator
conformal mapping
coupled transmission lines
superconducting resonator
Online Access:http://link.springer.com/article/10.1140/epjqt/s40507-018-0066-3
Description
Summary: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.
ISSN:2196-0763

Similar Items