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cylindrical helical antennas

Laser and Particle Beams (1)

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Radiation of high-power ultrawideband pulses with elliptical polarization by four-element array of cylindrical helical antennas
Yu.A. Andreev, A.M. Efremov, V.I. Koshelev, B.M. Kovalchuk, V.V. Plisko, K.N. Sukhushin, M.Yu. Zorkaltseva
Journal:

Laser and Particle Beams / Volume 33 / Issue 4 / December 2015

Published online by Cambridge University Press:

14 July 2015, pp. 633-640
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A high-power source of ultrawideband radiation with elliptical polarization of the field has been created. The source includes a monopolar pulse generator, a bipolar pulse former, a wave transformer with the power divider, and a four-element array of cylindrical helical antennas. The array was excited by bipolar pulses of the length 1 ns and amplitude 225 kV. In the experiments, the pulses of the elliptically polarized radiation with the effective potential of 440 kV and high stability at a pulse repetition rate of 100 Hz were obtained.