Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 12
ContentsFull text in Russian (pdf)
DOI https://doi.org/10.30898/1684-1719.2020.12.5
UDC 621.371: 538.574
Excitation of anisotropic impedance metasurface in the form of elliptical cylinder
A.
I. Semenikhin, D. V. SemenikhinaSouthern Federal University, Institute of the Radio Engineering Systems and Control,
Nekrasovskyy Lane, 44, Taganrog 347928, Russia
The paper is received on December 4, 2020
Abstract. The problem of arbitrary excitation of waves by a system of external sources near an anisotropic metasurface in the form of an elliptical cylinder with a surface homogenized impedance tensor of general form is solved. The solution to the problem is written as a superposition of E- and H-waves in elliptical coordinates. The partial reflection coefficients of waves were found from the boundary conditions using the orthogonality of the Mathieu angular functions. For these coefficients, four coupled infinite systems of linear algebraic equations of the second kind are obtained. The conditions under which the solution of the excitation problem by the method of eigenfunctions is obtained in an explicit form are found and analyzed. It is shown that for this, the surface impedance tensor of a uniform metasurface must belong to a class of deviators (have zero diagonal elements). In the particular case of a mutual (most easily realized) metasurface, its impedance tensor should only be reactance. In another special case, the impedance tensor of a set of deviators describes a class of anisotropic nonreciprocal metasurfaces with the so-called perfect electromagnetic conductivity (PEMC).
Key words: elliptical cylinder, metasurface, surface impedance tensor, perfect electromagnetic conductor, excitation of waves.
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For citation:
Semenikhin A.I., Semenikhina D.V. Excitation of anisotropic impedance metasurface in the form of elliptical cylinder. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No.12. https://doi.org/10.30898/1684-1719.2020.12.5 (In Russian)