Measurements of the Dielectric Parameters of Weakly Absorbing Liquids in the Microwave Band

A method of measuring the dielectric properties of weakly absorbing liquids in the microwave band is proposed. The method is based on analyzing the standing-wave field for thicknesses of the liquid layers for which the conditions for total nonreflecting absorption of the incident radiation to occur in the layer of material, or conditions close to this, are satisfied.