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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v75.i6.20
pages 489-506

POWER CHARACTERISTICS OF A T-JUNCTION OF RECTANGULAR WAVEGUIDES WITH A MULTI-ELEMENT MONOPOLE-SLOTTED COUPLING STRUCTURE

S. L. Berdnik
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61077, Ukraine
V. A. Katrich
V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine
V. I. Kiyko
V. Karazin National University of Kharkov, 4, SvobodaSq., Kharkov, 61077, Ukraine
M. V. Nesterenko
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077, Ukraine
Yu. M. Penkin
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077, Ukraine

RESUMO

Rectangular waveguide junctions are widely used antenna-waveguide devices. For this reason analysis of the impact of impedance insertions on the electrodynamic characteristics of the junctions is of great importance for practical applications. The paper suggests a mathematical model of an E-plane T-junction of rectangular waveguides with a three-element monopole-slot structure of the coupling. The model has been developed on the basis of an approximate analytical solution of the equation set for the currents obtained by the method of induced electro- and magnetomotive forces. A peculiarity of the model is simultaneous consideration of two impedances. These are a variable along the monopole axes surface impedance and a constant impedance distributed across the end face of the lateral semi-infinite waveguide. Multiparametric investigations have been performed of the power characteristics of the junction for the single-mode operation regime of the waveguides, including the case of covering the end face of the lateral waveguide by a metamaterial layer. The possibility is investigated of the efficient use of impedance coats in the capacity of control elements of sharing the power between the output arms of the waveguide junction.


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