title: A source of high-power pulses of elliptically polarized ultrawideband radiation.
abstract: Here, we describe a source of high-power ultrawideband radiation with elliptical polarization. The source consisting of a monopolar pulse generator, a bipolar pulse former, and a helical antenna placed into a radioparent container may be used in tests for electromagnetic compatibility. In the source, the helical antenna with the number of turns N = 4 is excited with a high-voltage bipolar pulse. Preliminary, we examined helical antennas at a low-voltage source aiming to select an optimal N and to estimate a radiation center position and boundary of a far-field zone. Finally, characteristics of the source in the operating mode at a pulse repetition rate of 100 Hz are presented in the paper as well. Energy efficiency of the antenna is 0.75 at the axial ratio equal to 1.3. The effective potential of radiation of the source at the voltage amplitudes of the bipolar pulse generator equal to -175/+200 kV reaches 280 kV.
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: Yu A
authors.initials: YA
authors.lastname: Andreev
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: A M
authors.initials: AM
authors.lastname: Efremov
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: V I
authors.initials: VI
authors.lastname: Koshelev
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: B M
authors.initials: BM
authors.lastname: Kovalchuk
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: A A
authors.initials: AA
authors.lastname: Petkun
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: K N
authors.initials: KN
authors.lastname: Sukhushin
authors.affiliation: Institute of High Current Electronics SB RAS, IHCE SB RAS, Tomsk 634055, Russia.
authors.forename: M Yu
authors.initials: MY
authors.lastname: Zorkaltseva