Journal of Radio Electronics. eISSN 1684-1719. 2024. №11

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DOI: https://doi.org/10.30898/1684-1719.2024.11.21

Bow-Tie printed
dipole phased array element
for 5G mm-Wave communication SYSTEMS

A.V. Gevorkyan

Southern federal university
347922, Russia, Taganrog, Nekrasov line, 44

The paper was received October 31, 2024.

Abstract. In this paper present the design of the bow-tie printed dipole array element. It was necessary to investigate the behavior of its frequency characteristics for scanning and evaluate the prospects of using for the 5G mm-wave communication systems. It is made on a dielectric substrate (ε=3) with a 1.0 mm thickness with one-sided metallization and has an air layer between the substrate and reflector. Overall dimensions of the element are 5.5 mm × 5.5 mm × 1.5 mm. In the broadside, the values of the VSWR ≤ 1.33 in the operating frequency range from 24.25 to 27.50 GHz. For scanning in the E- and H-planes in the ±45° angle sector, it increases to 2.80 and 1.77, respectively. The replacement of the air layer on a substrate with a relative permittivity of ε = 1.6 led to the following. In the broadside, the maximum value of the VSWR decreased from 1.33 to 1.31. For scanning in the E-plane in the ±45° angle sector, it increased from 2.80 to 2.32. For scanning in the H-plane, it increased from 1.77 to 1.87. I.e., in the operating frequency range, the values of the VSWR ≤ 2.32. The values of the realized gain are in the range from 3.92 to 5.09 dB (efficiency is more than 97%) in the broadside, and for scanning in the E- and H-planes, respectively, from 1.70 to 3.37 dB (efficiency is more than 82%) and from 2.04 to 3.20 dB (efficiency is more than 89%).

Key words: antennas, bow-tie antennas, millimeter waves, phased array element.

Financing: This research was financially supported by Russian Science Foundation project № 23-29-00970 (https://rscf.ru/project/en/23-29-00970/) and is made at the Center for Collective Usage «Applied Electrodynamics and Antenna Measurements» at Southern federal university in Taganrog.

Corresponding author: Gevorkyan Armen Valerievich, gevorkyan.scp@yandex.ru.

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For citation:

Gevorkyan A.V. Bow-tie printed dipole phased array element for 5G mm-wave communication systems. // Journal of Radio Electronics. – 2024. – №. 11. https://doi.org/10.30898/1684-1719.2024.11.21 (In Russian)