NDLI: Non-linearity in superconducting coplanar waveguide rectangular-spiral resonators

Content Provider	IET Digital Library
Author	Javadzadeh, S. Mohammad Hassan Bruno, Alessandro Farzaneh, Forouhar Fardmanesh, Mehdi
Abstract	In the present work, a non-linear distributed circuit model for superconducting rectangular-spiral resonators is proposed. This is based on an accurate non-linear circuit model for superconducting parallel coupled lines, which is simultaneously considered both quadratic and modulus non-linear dependencies. The non-linearity in superconducting devices depends on the current distribution, which is mainly determined by the geometrical structure of the device. The current distribution in the superconducting spiral resonators can be computed by a numerical approach based on three-dimensional finite element method. This computed current distribution is used to produce a non-linear circuit model for the superconducting spiral resonator. Numerical technique based on harmonic balance approach is used for non-linear analysis of the proposed equivalent non-linear circuit. The model is proposed for coplanar waveguide (CPW) resonators, which can easily be extended for microstrip resonators. To confirm the accuracy of the proposed model, non-linearity in a 6-pole superconducting CPW spiral bandpass filter has been measured. Measurement results show good agreement with the ones from the model. This proposed technique is found to be a major approach for fast and efficient non-linear analysis of the superconducting spiral resonators and filters.
Starting Page	230
Ending Page	236
Page Count	7
ISSN	17518725
Volume Number	9
e-ISSN	17518733
Issue Number	Issue 3, Feb (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/9/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2013.0528
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2014-09-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	6-pole Superconducting CPW Spiral Bandpass Filter Band-pass Filter Coplanar Waveguide Coupled Transmission Line CPW Resonator Current Distribution Equivalent Circuit Equivalent Nonlinear Circuit Finite Element Analysis Geometrical Structure Harmonic Balance Approach Microstrip Resonator Modulus Nonlinear Dependencies Nonlinear Analysis Nonlinear Distributed Circuit Model Numerical Approach Passive Filter Passive Network Quadratic Nonlinear Dependencies Rectangular Waveguide Resonator Filter Superconducting Coplanar Waveguide Rectangular-spiral Resonator Superconducting Device Superconducting Filter Superconducting Microwave Device Superconducting Parallel Coupled Line Superconducting Resonator Three-dimensional Finite Element Method Waveguide And Microwave Transmission Line Component Waveguide Filter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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