Work

Efficient and robust analysis of complex scattering data under noise in microwave resonators

Year: 2015

Type: article

Abstract: Superconducting microwave resonators are reliable circuits widely used for detection and as test devices for material research. A reliable determination of their external and internal quality factors is crucial for many modern applications, which either require fast measurements or operate in the single photon regime with small signal to noise ratios. Here, we use the circle fit technique with diameter correction and provide a step by step guide for implementing an algorithm for robust fitting and calibration of complex resonator scattering data in the presence of noise. The speedup and robustness of the analysis are achieved by employing an algebraic rather than an iterative fit technique for the resonance circle.

Source: Review of Scientific Instruments

DOI: 10.1063/1.4907935

Authors: S. Probst, F. B. Song, P. A. Bushev, A. V. Ustinov, M. Weides

Institutions: Karlsruhe Institute of Technology, Saarland University, National University of Science and Technology, Johannes Gutenberg University Mainz

Language: English

Topic: Microwave and Dielectric Measurement Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, Ministry of Education and Science of the Russian Federation

Awards: G3155653761, G6864321348, G708659017