Y. Andreev, S. Smirnov, V. Plisko, V. Koshelev, E. Balzovsky
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Tuning of Polarization of a Square 2×2 Array of Helix Antennas
Studies of the square array of cylindrical equidistant helical antennas have been performed. The array is designed to radiate a bipolar voltage pulse with a duration of 1 ns. In the transmission mode, the change in the effective potential and the ellipticity ratio of radiation along the array axis is studied, when a part of the elements is rotated around its axis at arbitrary angles. The possibility of adjusting the ellipticity ratio of radiation along the array axis within a wide range is shown. The phenomenon of decreasing of effective potential of the array radiation in the direction of the main maximum due to the mutual influence of elements was found. The reflection coefficients from a single helical antenna and an array element were studied in the frequency domain.
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