Predicting Nonlinear Effects in Superconducting Microwave Transmission Lines from Mutual Inductance Measurements

Published

June 1, 1999

Author(s)

James Booth, Leila R. Vale, Ronald H. Ono, John H. Claassen

Abstract

We demonstrate the use of a new experimental technique based on mutual inductance measurements to quantitatively predict nonlinear effects in microwave devicesfabricated from high-temperature superconductor (HTS) materials. The mutual inductance measurements yield the current dependence of the penetration depth λ(J) in unpatterned HTS thin films. This information is used to calculate third-harmonic generation in coplanar waveguide (CPW) transmission lines and compares very well with actual measurements of CPW transmission lines of variable dimensions fabricated from YBa₂Cu₃O^d7-γ thin film samples. The mutual inductance measurements should prove extremely valuable as a screening technique for microwave applications of HTS materials that require very low nonlinear response.

Proceedings Title

Ext. Abstracts, 7th Intl. Supercond. Elec. Conf. (ISEC)

Issue

2

Conference Dates

June 21-25, 2099

Conference Location

Berkeley, CA, USA

Pub Type

Conferences

Keywords

coplanar waveguide, high temperature superconductor, nonlinear response

Citation

Booth, J. , Vale, L. , Ono, R. and Claassen, J. (1999), Predicting Nonlinear Effects in Superconducting Microwave Transmission Lines from Mutual Inductance Measurements, Ext. Abstracts, 7th Intl. Supercond. Elec. Conf. (ISEC), Berkeley, CA, USA (Accessed October 10, 2025)