COUPLING COEFFICIENTS OF ROTATING RECTANGULAR DIELECTRIC RESONATORS WITH RECTANGULAR WAVEGUIDE
Keywords:dielectric filter, rectangular dielectric resonator, rotation, coupling coefficients.
Background. A further increase in the speed of information transfer is determined by more stringent requirements for the elements of communication devices. One of the most important components of such devices is various filters, which are often made on dielectric resonators. Calculation of the parameters of multi-section filters is impossible without further development of the theory of their design. The development of filter theory is based on electrodynamic modeling, which involves calculating the coupling
coefficients of dielectric resonators in various transmission lines.
Objective. The aim of the research is to calculate and study the coupling coefficients of rectangular dielectric resonators with a rectangular metal waveguide when their axes rotate. Investigation of new effects to improve the performance of filters and other devices based on them.
Methods. Methods of technical electrodynamics are used to calculate and analyze the coupling coefficients. The end result is to obtain new analytical formulas for new structures with rectangular dielectric resonators, which make it possible to analyze and calculate their coupling coefficients.
Results. New analytical expressions are found for the coupling coefficients of dielectric resonators with the rotation of their axes in a rectangular waveguide.
Conclusions. The theory of designing filters based on new structures of dielectric resonators with rotation of their axes in metal waveguides has been expanded. New analytical relationships and new patterns of change in the coupling coefficients are found.
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