Characteristics of near field of the horizontal vibrator located above a square screen
- Authors: Yeliseyeva N.P.1, Gorobets N.N.1, Gorobets A.N.1
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Affiliations:
- Karazin Kharkiv National University
- Issue: Vol 61, No 7 (2016)
- Pages: 749-766
- Section: Electrodynamics and Wave Propagation
- URL: https://journals.rcsi.science/1064-2269/article/view/197090
- DOI: https://doi.org/10.1134/S1064226916070044
- ID: 197090
Cite item
Abstract
The 3D vector problem concerned with the diffraction of the horizontal half-wave vibrator field by a perfectly conducting and infinitely thin rectangular screen is solved during observations at a finite distance from the vibrator. The technique for calculating the diffracted field, which is based on the laws of geometric diffraction theory and uniform diffraction coefficients obtained from the rigorous solution to the problem of the diffraction of the field of a Hertzian electric dipole at the edge of a perfectly conducting semiplane, is proposed. Fast-acting programs for calculating and analyzing the amplitudes and phases of the components of diffracted and complete vibrator fields in the entire space of observation angles at the set distance of the observation point from a rectangular screen and along the normal to the screen under changes in the distance between the screen and the observation point are developed. The character of the transformation of the spatial amplitude distribution of three field components depending on removal of observation point from an antenna is studied. It is shown that the distance to the far field zone of the investigated radiating system exceeds two wave lengths.
About the authors
N. P. Yeliseyeva
Karazin Kharkiv National University
Author for correspondence.
Email: Nadezhda.P.Yeliseyeva@univer.kharkov.ua
Ukraine, pl. Svobody 4, Kharkiv, 61022
N. N. Gorobets
Karazin Kharkiv National University
Email: Nadezhda.P.Yeliseyeva@univer.kharkov.ua
Ukraine, pl. Svobody 4, Kharkiv, 61022
A. N. Gorobets
Karazin Kharkiv National University
Email: Nadezhda.P.Yeliseyeva@univer.kharkov.ua
Ukraine, pl. Svobody 4, Kharkiv, 61022