caa a22 4500 477059333 CHVBK 20180405111355.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF02436169 doi (NATIONALLICENCE)springer-10.1007/BF02436169 Generation of powerful, superbroad-band, subnanosecond electromagnetic pulses [Elektronische Daten] [V. Shpak, M. Yalandin, S. Shunailov, M. Ul'maskulov] The excitation of superbroad-band TEM antennas with a high-voltage subnanosecond modulator permitting a pulse-repetition frequency of up to 100 Hz is experimentally investigated. The modulator consists of a RADAN-303B nanosecond driver and a pulse amplifier based on gas discharges. The instrument generates unipolar and bipolar pulses of tunable length and amplitude. The amplitude and power of the pulses sent to the antenna reach 100 kV and 200 MW. Data are obtained on the stability of the parameters of the subnanosecond modulator pulses. Information is given on the electrical strength of the air insulation in the matching interval between the modulator and the antenna. The superbroad-band pulses emitted are recorded at distances of up to 25 m. The characteristics of the instrument permit the spatial resolution of reflections from conducting objects with a shape-inhomogeneity scale of no more than 25 cm. Emitters with increased directionality in the E or H (E and H) planes based on two (four) TEM antenna supplied with split modulator pulses are investigated. In-phase and antiphase antenna configurations are considered. Plenum Publishing Corporation, 1997 Shpak V. aut Yalandin M. aut Shunailov S. aut Ul'maskulov M. aut Russian Physics Journal Kluwer Academic Publishers-Consultants Bureau 39/12(1996-12-01), 1257-1263 1064-8887 39:12<1257 1996 39 11182 https://doi.org/10.1007/BF02436169 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02436169 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shpak V. aut NATIONALLICENCE 700 1- Yalandin M. aut NATIONALLICENCE 700 1- Shunailov S. aut NATIONALLICENCE 700 1- Ul'maskulov M. aut NATIONALLICENCE 773 0- Russian Physics Journal Kluwer Academic Publishers-Consultants Bureau 39/12(1996-12-01), 1257-1263 1064-8887 39:12<1257 1996 39 11182 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer