Diffraction of H 0m and E 0m modes by a system of axially symmetric discontinuities in a coaxial circuit

Калиберда, М. Е.; Литвиненко, Л. Н.; Pogarsky, S. A.

doi:10.1134/s1064226910050037

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…Using the approach described in [17,18] the scattering operators of a system of slots will be found in several stages. At the first stage, we use the mode-matching technique to solve the diffraction problem by a circular-to-coaxial waveguide step discontinuity ( Figure 2).…”

Section: The Algorithm Of Solution Of Bounded Problemmentioning

confidence: 99%

“…Since the problem is linear, the scattered field in each domain can be represented in the form of a superposition of the fields excited by the waves with amplitudes A H;0 n , A E;0 n , incident from domain III, the waves with amplitudes B H;0 n , B E;0 n , incident from domain II, and the waves with amplitudes D H;0 n , D E;0 n , incident from domain I, where n D 1; 2; : : : : Successively setting the amplitude of one incident wave equals to unity and the amplitudes of other waves equal to zero in the solution, we obtain elements of the scattering operators of this structure. At the second stage, we use operator equations written in [17] for determination of scattering operators of a single slot, bounded and semiinfinite system of slots. …”

Section: The Algorithm Of Solution Of Bounded Problemmentioning

confidence: 99%

“…In [17] we considered the TEM-mode diffraction problem by the structure which consists of bounded sequence of circular waveguide gaps placed in a lager radius circular waveguide with dielectric inserts. The conductor thickness was negligible.…”

Section: Introductionmentioning

confidence: 99%

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Solution of Waves Transformation Problem in Axially Symmetric Structures

Lytvynenko¹,

Калиберда²,

Pogarsky³

2012

Frequenz

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Diffraction problem of the TE 1n -and TM 0n -modes by a system of annular slots in the hollow inner conductor of a coaxial waveguide is considered. Inner conductor is of finite thickness. The waveguide is filled with dielectrics with different permittivities. As a key problem the diffraction problem by a circular-to-coaxial waveguide step discontinuity is solved with the mode-matching technique. The obtained solution is used in the analysis of structures with a finite and semiinfinite number of discontinuities. Dependences of the transmission and reflection coefficients of the dominant mode of a circular and coaxial waveguides as functions of wavenumber and distance between slots are analyzed.

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Section: The Algorithm Of Solution Of Bounded Problemmentioning

confidence: 99%

Section: The Algorithm Of Solution Of Bounded Problemmentioning

confidence: 99%

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Solution of Waves Transformation Problem in Axially Symmetric Structures

Lytvynenko¹,

Калиберда²,

Pogarsky³

2012

Frequenz

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“…The convergence of the solution is based on the corresponding theorems. This approach is successfully applied to the gratings of the infinite PEC or graphene screens in [28][29][30]. In [31], scattered fields consist of the fields of either plane waves or cylindrical waves, or both.…”

Section: Introductionmentioning

confidence: 99%

Scattering by PEC half-plane and disk placed on parallel planes

Калиберда

Lytvynenko

Pogarsky

2022

Int. J. Microw. Wireless Technol.

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The scattering by the perfectly electric conducting (PEC) half-plane and PEC zero thickness disk placed on parallel planes is considered. The fields are represented in the spectral domain, i.e. in the domain of Fourier transform. The operator equations with respect to the Fourier amplitudes of the scattered field are obtained. The kernel functions of these equations contain poles. After regularization procedure, which is connected with the elimination of the poles, operator equations are converted to the system of singular integral equations. The convergence of the solution is based on the corresponding theorems. The scattered field consists of the plane wave, reflected by the infinite part of the half-plane, cylindrical waves, which appear as a result of scattering by the edge of the half-plane, and spherical waves, which appear as a result of scattering by the disk and multiple re-scattering by the disk-half-plane. The total near-field distribution and far-field patterns of cylindrical waves are presented.

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