Resonances and signal to noise ratio of electromagnetic sensors
Date
2023-01-24
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Physica Scripta
Abstract
We illustrate the concept of the resonance for noise by considering the example of the current induced by an external electromagnetic field and the noise current in the well studied split ring resonantors in the thin wire limit, which is analytically tractable. We found that both the signal and the noise exhibit resonances at the same frequencies. However, their ratio exhibits interesting frequency dependences which also is a function of the nature of the external driving field. This previously unanticipated result suggests the signal to noise ratio does not just depend on the resonance frequency; further study is required of the fundamental physics for different structures and help improve the design of devices.
Description
This is the Accepted Manuscript version of an article accepted for publication in Physica Scripta. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1402-4896/acb29b. This article will be embargoed until 01/24/2024.
Keywords
resonance, noise, signal to noise ratio
Citation
Chui, S T, Zhifang Lin, and Zian Ji. “Resonances and Signal to Noise Ratio of Electromagnetic Sensors.” Physica Scripta 98, no. 2 (January 24, 2023): 025010. https://doi.org/10.1088/1402-4896/acb29b.