Abstract
This paper introduces a non-destructive and simple setup method for characterizing dielectric liquids over a broad frequency range (up to 30 GHz) using the Djordjevic-Sarkar model. By employing a differential microstrip line and comparing scattering parameters in air-filled and liquid-immersed scenarios, the proposed method achieves precise dielectric constant (DK) and dissipation factor (Df) extraction. 2 Liquid samples (PAO4 and DC-15) were tested using this method. Validation against the cavity resonance method demonstrates a strong agreement for the extracted DK values, with a relative error of less than 1.5 %, indicating high accuracy. However, the method is less sensitive to Df, particularly for low-loss dielectrics, with a relative error of 67 % at the cavity resonance frequency. Despite this limitation, the technique provides a practical approach for wideband dielectric characterization, particularly for applications in immersion cooling and high-frequency electronic systems.
Recommended Citation
R. Vahdani et al., "A Non-Destructive and Simple Setup Method for Dielectric Liquid Characterization in a Wide Frequency Range with Djordjevic-Sarkar Model," IEEE International Symposium on Electromagnetic Compatibility, pp. 348 - 353, Institute of Electrical and Electronics Engineers, Jan 2025.
The definitive version is available at https://doi.org/10.1109/EMCSIPI52291.2025.11170214
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Cavity Resonator; Dielectric Constant (DK); Differential Microstrip Line; Dissipation Factor (Df); Liquid characterization; Wide Band Frequency
International Standard Serial Number (ISSN)
2158-1118; 1077-4076
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2025
