Kozlovsky V. Distributed filters based on irregular planar structures in radio systems and telecommunications

Object of research: selective devices of radio engineering systems. Research objective: the application of modern network theory to planar structures to solve the problem of creating highly selective devices. Research methods: method of wave matrix, theory of multiterminals, experiment. Theoretical and practical results, and novelty: further developed the method TLM. Distinctive novelty of the results is to show that the cross-sectional plane gradient fiber, equivalent to an irregular dispersion transmission line; perfected method of determining the parameters of the fiber chain, the distinctive feature of which is the definition of the matrix elements of equivalent circuits with the reflected waves, which significantly improves the accuracy of the analysis of optical devices; perfected method of synthesis of non-regular slotted ring filters. Distinctive novelty of the method consists in the account of the dispersion phenomena and irregular gap profile when determining the slope parameters of the resonators and inverters; further developed the theory of coupled lines, the distinctive novelty of which is to develop a method to represent multipoles related irregular lines as single lines and reduced order multipoles. Thanks to the development of the theory of coupled lines to obtain new analytical solutions for the matrices of irregular distributed multipoles, which expanded library of basic elements of the VMI; further developed the theory of distributed filters, distinctive novelty of which is to develop a new method for increasing the stop band filters related irregular lines. The method involves the using of two coupled irregular transmission lines. In this in-band poles and zeros input resistance of both lines should be the same as in the stop band - the zeros of the first line should coincide with the poles of the second line and vice versa; further developed the theory of distributed parameter devices. Distinctive novelty of the theory is to develop a method for determining the distribution of filter parameters on the basis of the structures of frequency-power Manley-Rowe. Thanks to the new theory first developed varactor multipliers and converters on irregular planar structures that outperform their electrical characteristics known analogs. Degree of implementation: in new developments of RADIONIX, LLC, "Diprosvyaz", CJS, "Ukrainian Scientific Research Institute of Communications," State Enterprise, "National innovation", LLC. Sphere of use: technical science, telecommunications.