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METHOD FOR THE DETERMINATION OF THE PROPERTIES OF MATERIALS IN REFLECTION OR TRANSMISSION MEASUREMENTS WITH ELECTROMAGNETIC WAVES, IN PARTICULAR MICROWAVES
METHOD FOR THE DETERMINATION OF THE PROPERTIES OF MATERIALS IN REFLECTION OR TRANSMISSION MEASUREMENTS WITH ELECTROMAGNETIC WAVES, IN PARTICULAR MICROWAVES
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机译：用电磁波（特定微波）测定反射或透射测量中材料的性能的方法
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摘要
In a method for determining the phase shift in measurements of reflection or transmission with electromagnetic waves, in addition to a first reference measurement (empty measurement) for detecting the proportion of the measurement arrangement in the phase shift a second reference measurement is carried out on a representative sample, and the phase shift caused by this representative sample is firstly exactly determined. The phase responses caused by the samples or specimens to be measured are then treated as a deviation from the corresponding phase response or the phase shift of the representative sample, and taken into account by the formation of sums/differences, i.e. the actual phase shift of an individual sample is composed of the phase shift of the reference sample and a relative phase shift which is caused by the deviations of the individual specimen from the reference sample. By comparing the frequency responses for the individual sample/reference sample, the disturbing nonlinearities are largely eliminated in the phase responses occurring here, and thus a more exact determination of the phase shifts is rendered possible. IMAGE
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