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The Fabry-Perot resonator with coaxial-sector apertures and waveguide loads is investigated. It is shown that a strong localization of the electromagnetic field is observed inside the reflecting cavity when the resonator is excited by a plane linearly polarized wave at a wavelength higher than the critical wavelength for coaxial-sector waveguides. It is established that the localization level of the...
Studied electrodynamics properties of the Fabry-Perot resonator formed by two parallel ideally conducting screens with finite thickness having rectangular holes. Shown availability of a strong localization of the electromagnetic field in the volume of the resonator at a fixed wavelength, which is prohibitive for segments of rectangular waveguides, performed in both screens.
The electrodynamic characteristics of a double screen of finite thickness with coaxial-sector apertures of different geometrics are investigated. The frequency dependence of the reflection coefficient of the plane wave is calculated. The Stokes parameters of the reflected wave are analyzed in dependence on the distance between the screens.
The electrodynamic characteristics of a double screen of finite thickness with coaxial-sector waveguides are investigated. Frequency dependences of the reflection coefficient are presented for the case of normal incidence of a plane electromagnetic wave upon the double screen. The reflection coefficient is calculated in dependence on the polarization of the incident wave.
Electrodynamic characteristics of the radiation phased arrays of modified coaxial-sector radiators of three types: "semicircular", circular "ridge" and "coaxial-ribbed" are investigated. Reflection coefficients and the partial pattern of the investigated arrays are calculated. The ellipticity values of an electromagnetic wave radiated by arrays are obtained.
Autocollimation regime in the reflection of electromagnetic waves from the array of short-circuited coaxial-sector waveguides is investigated. The possibility of transforming power of the incident wave in power of the autocollimator wave is shown possible. Polarization characteristics of the autocollimator wave are calculated.
The diffraction problem of three-dimensional Gaussian beam on the flat screens of finite thickness of rectangular holes is solved. A new algorithm for calculating scattered fields of beam is proposed. The conditions under which the distortion of the reflected field pattern and the narrowing of the transmitted field pattern appear are studied.
One-periodic planar arrays of straight wires or metal strips have a long history of applications as quasioptical polarizing devices and partially transparent mirrors. Their properties are well known. Planar double-periodic structures have been used in the microwave, terahertz and optical frequency ranges because of their remarkable electromagnetic properties and manufacturing simplicity. In microwaves,...
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