An Accurate Radially Stratified Approach for Determining the Complex Permittivity of Liquids in a Cylindrical Microwave Cavity

Autor:	Aurya Javeed, C. S. Jamieson, Martin B. Barmatz, David E. Steinfeld, Henry W. Jackson
Rok vydání:	2015
Předmět:	Permittivity Radiation Materials science business.industry Physics::Optics Relative permittivity Condensed Matter Physics Computational physics Vacuum permittivity Optics Normal mode Q factor Electrical and Electronic Engineering business Cavity wall Microwave Microwave cavity
Zdroj:	IEEE Transactions on Microwave Theory and Techniques. 63:504-508
ISSN:	1557-9670 0018-9480
DOI:	10.1109/tmtt.2014.2387057
Popis:	A complex permittivity measurement method is introduced that is applicable to radially stratified resonant microwave cavities excited by a ${\rm TM}_{0m0}$ eigenmode. This single-frequency approach is well suited to the measurement of the complex permittivity of liquids because it can accurately account for a supporting tube container. It can also be applied advantageously to solid rods or tubes. The frequency dependence, as well as the field configuration at the cavity walls are taken into account more accurately than in other approaches. Comparing our results with published measurements of well-known liquids validates this technique.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2d80f21664ac2f857957a447bc8b9120 https://doi.org/10.1109/tmtt.2014.2387057 Zobrazit plný text záznamu