A novel approach for dielectric constant measurement using microwave oscillators

Summary form only given, as follows. In this paper, planar microwave oscillators are used to measure the dielectric constant of organic liquids for the first time. Dielectric constant of an unknown material is calculated based on the change in oscillation frequency caused by the interaction of the material-under-test (MUT) with a split-ring resonator (SRR). The dielectric constants of small quantities of acetic acid, xylene, isobutanol and ethyl acetate are measured and show good agreement with previously reported values.