Title :
A review of RF and microwave techniques for dielectric measurements on polar liquids
Author :
Gregory, Andrew P. ; Clarke, Robert N.
Author_Institution :
Div. of Enabling Metrol., Nat. Phys. Lab., Teddington
Abstract :
The requirements for dielectric measurements on polar liquids lie largely in two areas. First there is scientific interest in revealing the structure of and interactions between the molecules - this can be studied through dielectric spectroscopy. Secondly, polar liquids are widely used as dielectric reference and tissue equivalent materials for biomedical studies and for mobile telecommunications, health and safety related measurements. This review discusses these roles for polar liquids and surveys the techniques available for the measurement of their complex permittivity at RF and Microwave frequencies. One aim of the review is to guide researchers and metrologists in the choice of measurement methods and in their optimization. Particular emphasis is placed on the importance of traceability in these measurements to international standards
Keywords :
biomedical materials; biomedical measurement; dielectric liquids; microwave measurement; mobile communication; permittivity; permittivity measurement; RF techniques; biomedical measurement; biomedical studies; dielectric liquids; dielectric materials; dielectric measurements; dielectric spectroscopy; international standards; metrologists; microwave techniques; mobile telecommunications; permittivity measurement; polar liquids; review; tissue equivalent materials; transmission-line measurement; Biological materials; Biomedical materials; Biomedical measurements; Dielectric liquids; Dielectric materials; Dielectric measurements; Electrochemical impedance spectroscopy; Microwave theory and techniques; Permittivity measurement; Radio frequency;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2006.1667730
