Bragg microwave structure in a coaxial waveguide as a sensor for monitoring the dielectric parameters of liquid media

The article considers the class of periodic systems in waveguide devices of the microwave frequency (microwave) range of electromagnetic waves, which show the effects of Bragg resonance reflection in this frequency range. The priority areas of using these structures in the field of measuring the electrophysical parameters of materials and substances are shown. The general principles of the operation of measuring instruments for controlling the dielectric parameters of liquid media based on sensitive elements in the form of Bragg microwave structures implemented in a coaxial waveguide are formulated.