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- Title
The Measurement and Verification of Parameters of Pulse Electromagnetic Radiation Generated by a Large-Radius Ring Current.
- Authors
Fedorov, V. M.; Lebedev, E. F.; Ostashev, V. E.; Tarakanov, V. P.; Ul’yanov, A. V.; Fortov, V. E.; Yankovskiı, B. D.
- Abstract
Experimental and analytic studies of the generation and propagation of electromagnetic radiation due to repetitive current pulses of a nanosecond duration (peak power to 1 MW, current slew rate of 3.5 A/ns) are presented. The radiation source was a fine-wire ring antenna of large radius (ρ[sub a] = 1.4 m). The antenna was driven along its full length instantaneously within the time τ shorter than the time of wave travel along the ring diameter (τ ≤ 2ρ[sup a]/c). Parameters of the emitted wave were measured. The experimental data are consistent with the calculated emitted-wave parameters that take into account radiation reflection from the conducting walls of the laboratory. The efficiency of transformation of drive pulse energy into ultra-wideband radiation was found to be approximately 15%. A ring antenna driven by repetitive current pulses (within the time τ ≤ 2ρ[sup a]/c) is suggested to be used as a reference ultra-wideband emitter.
- Subjects
ELECTROMAGNETIC waves; ELECTRIC currents
- Publication
Technical Physics, 2000, Vol 45, Issue 6, p753
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/1.1259715