Back to Search
Start Over
High-Precision Method of Moments Applied to Measurement of Dielectric Parameters at Microwave Frequencies
- Source :
- IEEE Transactions on Microwave Theory and Techniques
- Publication Year :
- 2022
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2022.
-
Abstract
- A novel high-precision model of a custom-made coaxial chamber used for broadband measurement of the relative complex permittivity at microwave frequencies is presented. The model is based on a surface integral-equation formulation of the method of moments tailored for bodies of revolution. All singular integrals encountered in the numerical analysis are calculated in a unified way with a novel integral transformation, which enables the precision of up to 12 significant digits using the 64-bit representation of real numbers. The dielectric parameters are estimated from the reflection-coefficient measurement of the chamber with a disk-shaped dielectric sample by comparison of the measured data with the high-precision numerical analysis of the chamber. The complete measurement procedure is illustrated and verified using samples of known dielectric properties. This is the peer-reviewed version of the paper: Petrović, J.G., Olćan, D.I., Obradović, N.N., Djordjević, A.R., 2022. High-Precision Method of Moments Applied to Measurement of Dielectric Parameters at Microwave Frequencies. IEEE Transactions on Microwave Theory and Techniques, 70, 2, 970-979. [https://doi.org/10.1109/TMTT.2021.3136294]
- Subjects :
- Radiation
method of moments
numerical electromagnetics (EMs)
Body of Revolution (BoR)
permittivity measurements
magnetic domains
Condensed Matter Physics
permittivity
testing
dielectrics
dielectric measurements
singular integrals
Electrical and Electronic Engineering
mathematical models
high-precision integration
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Microwave Theory and Techniques
- Accession number :
- edsair.doi.dedup.....97938cc7151afdeb93e7a19c525a6c79