Polarization and Resonance Characteristics of Field of Two Orthogonal Pairs of Impedance Dipoles Excited In-Phase and Placed above Screen

Using the uniform geometric diffraction theory and formula for the current amplitudes of impedance dipoles, the field of two orthogonal pairs of pairwise parallel in-phase excited impedance dipoles placed over a rectangular screen is defined in the whole observation space. It is shown that in the no...

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Bibliographic Details
Main Authors: Yeliseyeva, Nadezhda, Berdnik, Sergey, Katrich, Victor
Format: Conference Proceeding
Language:English
Subjects:
circular polarization
Diffraction
Diffraction gratings
dipole
Impedance
Mirrors
Polarization
radiation pattern
rectangular screen
resonance
Software
Surface impedance
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Summary:Using the uniform geometric diffraction theory and formula for the current amplitudes of impedance dipoles, the field of two orthogonal pairs of pairwise parallel in-phase excited impedance dipoles placed over a rectangular screen is defined in the whole observation space. It is shown that in the normal direction to the square screen the conditions for creating a field with circular polarization can be fulfilled at any distance between the dipoles and between the ones and screen by choosing the suitable surface impedances of the dipoles. The software to find the dipoles surface impedances providing formation of the field with circular polarization and creation the field in the resonance have been developed. The found impedances depend on distance dipoles-screen and do not depend on distance between the dipoles. They coincide with the same impedances of two crossed dipoles placed over screen.
ISSN:2693-3535
DOI:10.1109/ELNANO54667.2022.9927032