Abstract
In this paper the experimental study of frequency dependences of scattering matrix coefficients of strip modules based on a coplanar strip line with partial dielectric filling in the form of bulk non-linear optical crystals of quartz, potassium titanium phosphate (KTP), zinc germanium diphosphide, lithium niobate has been performed. The appearance of the effect of forming quasi- chaotic oscillations in modules containing KTiOPO4, ZnGeP2, LiNbO3 bulk crystals when LFM signals are fed at fast switching of incident wave direction in the receiving and transmitting tract of the vector network analyzer is demonstrared. Parameters of comparative characterization of crystal materials are introduced. The complete phase of the modulus transmission coefficient is determined. The analysis of its physical sense is made, followed by processing complete phase shift, which provides the possibility to develop the algorithm of estimating the frequency dependence of crystal’s relative permittivity. The studied modules may be used as formers of quasi- chaotic microwave signals.
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