Four channel high power rf source with beam steering based on gyromagnetic nonlinear transmission lines
| Autor: | S. A. Shunailov, Valery G. Shpak, M. S. Pedos, S. N. Rukin, V. Yu. Konev, Ilya V. Romanchenko, V. V. Rostov, Marat R. Ul'maskulov, Konstantin A. Sharypov, M. I. Yalandin |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Physics Pulse repetition frequency business.industry Beam steering High voltage Horizontal plane 01 natural sciences 010305 fluids & plasmas Amplitude modulation Optics Nuclear magnetic resonance Amplitude 0103 physical sciences Center frequency business Instrumentation Voltage |
| Zdroj: | The Review of scientific instruments. 88(5) |
| ISSN: | 1089-7623 |
| Popis: | The synchronized operation of four gyromagnetic nonlinear transmission lines (NLTLs) was tested with a pulse repetition frequency up to 1 kHz during 1 s bursts. High voltage pulses with a duration of ∼5 ns from the solid state driver S-500 were split into four 48 Ω channels reaching about -200 kV in each channel with ∼10% variation in the amplitude. The maximum peak voltage at the NLTL output was within 220-235 kV with the maximum modulation depth of decaying oscillations up to 90% at the center frequency near 2.1 GHz. The relative delay between channels reached the half-period of the center frequency of oscillations. The associated beam steering by four element array of conical helical antennas was demonstrated in a horizontal plane at 17°. The effective potential of radiation reached 360 kV at the radiation axis. The effect of ferrite temperature on the shock wave velocity in gyromagnetic NLTL is observed. |
| Databáze: | OpenAIRE |
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