Antenna structures based on combined slot-vibrator emitters with impedance passive elements
Abstract
Relevance. The research is aimed at solving current problems related to the construction of mathematical models, methods and algorithms for calculating complex multi-element radiating structures, antenna systems and arrays, determining the physical processes of electromagnetic field formation by new electrodynamic structures and developing an automated system for optimizing the characteristics of antenna system fields based on electrodynamic and mass-dimensional parameters with the possibility of adapted control.
Solving the problem of creating radiating structures and antenna systems for the formation of electromagnetic fields with specified electrodynamic characteristics, which are the basic structural elements of modern radio-electronic systems and form the basis for the creation of the latest in functional properties and technical characteristics of hardware complexes (location, communications, electronic reconnaissance, electronic warfare, etc.).
Objectives. Determination of the features of the formation of electromagnetic fields by radiating structures and antenna arrays with combined slot-vibrator radiating elements when using passive ideally conductive or impedance vibrators (dipoles) and the possibilities of controlling the electrodynamic parameters of slot-vibrator radiators and optimizing the electrodynamic, technical and mass-dimensional parameters of antennas and antenna arrays.
Materials and methods. To solve boundary value problems formulated in a strict electrodynamic formulation in the form of integro-differential equations and to study the electrodynamic characteristics of antennas and antenna arrays with combined slot-vibrator structures, methods of mathematical physics (integral equations, generalized methods of reduced electro-magnetomotive forces and magnetomotive forces with basis functions obtained using the asymptotic averaging method, Galerkin methods, Green's functions and eigenwaves) and computational mathematics were applied.
Results. Methods and algorithms for calculating the electrodynamic characteristics of electromagnetic fields formed by single combined slot and slot-vibrator radiating structures and multi-element antennas and arrays with combined radiating elements have been developed. The physical features of the formation of electromagnetic fields by radiating structures and antenna systems for various geometric and electrophysical parameters and topology of the constituent elements of the radiating aperture of the antenna array have been investigated and determined.
Conclusions. It has been determined that the use of waveguide-slot antennas and antenna arrays with combined slot-vibrator radiating structures in the microwave and EHF ranges allows for the realization of the necessary (optimized) electrodynamic and mass-dimensional parameters of antenna systems and arrays, which are promising for the creation of the latest radio-electronic systems and complexes, for practical purposes.
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References
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