Spatial distribution of the amplitude of electromagnetic waves in the near zone of linear and flat antenna arrays

Authors

  • Nikolay N. Gorobets Karazin Kharkiv National University, Ukraine http://orcid.org/0000-0003-3022-9044
  • A. S. Lebedev Karazin Kharkiv National University, Ukraine
  • A. A. Elizarenko Ukrainian State University of Railway Transport, Ukraine

DOI:

https://doi.org/10.1109/ICATT.2017.7972615

Keywords:

electromagnetic fields, antenna arrays, near, intermediate and far zones of antenna array, searchlight beam

Abstract

The amplitudes and phases of the electric field in the near zone of the linear and planar equidistant antenna arrays of a large electrical length on the basis of a radiating coaxial-slit cable, that are designed to provide reliable radio communication in the underground tunnels and at the railway transport, are calculated. It is shown that such antenna arrays have shaped a searchlight beam in the near zone upon condition that three or four linear radiating cables have radiated.

References

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N. Gorobets, A. Lebedev, “Electromagnetic fields in the near zone of linear antenna arrays,” Bulletin of Karazin Kharkiv National University. Ser. Radiophysics and Electronics, vol. 25, pp. 3-11, 2016.

N. Gorobets, “Amplitude, phase and polarization diagrams of aperture antennas in the near, intermediate and far zones,” Bulletin of Karazin Kharkiv National University. Ser. Radiophysics and Electronics, vol. 9, No. 203, pp. 26-34, 1980.

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C. Walter, Traveling Wave Antennas. New York: McGraw-Hill, 1965. 429 p.

A. Bulgakova, N. Gorobets, V. Katrich, V. Lyashchenko, “The directivity factor of antenna arrays,” Radiophysics and Radio Astronomy, vol. 21, no. 4, pp. 285-297, 2016.

Published

2017-07-16

Issue

Section

Antenna arrays, adaptive and smart antennas