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Calculation of VLW fields in a waveguide with A 3-D local inhomogeneity

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Radiophysics and Quantum Electronics Aims and scope

Abstract

The problem of a point-source field in an irregular impedance waveguide is solved. The 3-D inhomogeneity of one of the walls of the waveguide is given by an area-inhomogeneous impedance. To obtain a solution within the framework of the method of integral equations, we develop a procedure for asymptotic transformation of the 2-D equation into an 1-D equation with allowance for the waves reflected from all the inhomogeneity boundaries. The obtained 1-D integral equation for points that belong to both the path line and boundary contour of the inhomogeneity is solved numerically using an original algorithm. The results of model calculations in a near-earth waveguide for the case of ionospheric perturbations that are large on the wavelength scale are given.

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State University, St. Petersburg. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 38, No. 12, pp. 1312–1322, December, 1995.

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Solov'ev, O.V., Agapov, V.V. Calculation of VLW fields in a waveguide with A 3-D local inhomogeneity. Radiophys Quantum Electron 38, 857–863 (1995). https://doi.org/10.1007/BF01039994

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  • DOI: https://doi.org/10.1007/BF01039994

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