S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store

A. M. Efremov, S. A. Kitsanov, Alexey Ivanovich Klimov, S. D. Korovin, B. M. Kovalchuk, I. K. Kurkan, O. P. Kutenkov, S. V. Loginov, I. V. Pegel, S. D. Polevin, A. A. Zherlitsyn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An S-band vircator with electron beam premodulation, without external magnetic field, based on a compact HV pulse generator with inductive energy store, was realized in experiment. The primary capacitor of the HV pulser was switched by means of a five-channel multigap discharger onto serially connected inductance and wire fuse. The short-circuit current of the generator was 65 kA with quarter-period of oscillation 6.6 mcs. The arising voltage made a peaking discharger operate thereby connecting the storing inductance with the electron vacuum diode of the vircator. The pulse width at the cathode could be varied within 50 - 150 ns using a slicer. The microwave power of the vircator was measured using calibrated dipole antennas by integrating over the radiation pattern, and a 60-dB directed coupler built in the single-mode output waveguide of the vircator. The vircator operated at the mode TE10. The output microwave power was 300 MW with 5% efficiency and 50 ns pulse width. The generation frequency was 2.65 GHz, stable during the pulse despite the fact that the decrease in the vacuum diode impedance during the pulse was a factor of three. The generation frequency was tunable within 15% at half power level. The maximum microwave output corresponded to 20 - 30% excess of electron beam current above the critical one.

Original languageEnglish
Title of host publicationIEEE International Conference on Plasma Science
Publication statusPublished - 2001
Externally publishedYes
Event28th IEEE International Conference on Plasma Science/ 13th IEEE International Pulsed Power Conference - Las Vegas, NV, United States
Duration: 17 Jun 200122 Jun 2001

Other

Other28th IEEE International Conference on Plasma Science/ 13th IEEE International Pulsed Power Conference
CountryUnited States
CityLas Vegas, NV
Period17.6.0122.6.01

Fingerprint

S band
microwaves
inductance
output
pulse duration
diodes
electron beams
vacuum
dipole antennas
pulse generators
fuses
short circuit currents
pulses
beam currents
couplers
energy
capacitors
generators
cathodes
wire

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Efremov, A. M., Kitsanov, S. A., Klimov, A. I., Korovin, S. D., Kovalchuk, B. M., Kurkan, I. K., ... Zherlitsyn, A. A. (2001). S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store. In IEEE International Conference on Plasma Science

S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store. / Efremov, A. M.; Kitsanov, S. A.; Klimov, Alexey Ivanovich; Korovin, S. D.; Kovalchuk, B. M.; Kurkan, I. K.; Kutenkov, O. P.; Loginov, S. V.; Pegel, I. V.; Polevin, S. D.; Zherlitsyn, A. A.

IEEE International Conference on Plasma Science. 2001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Efremov, AM, Kitsanov, SA, Klimov, AI, Korovin, SD, Kovalchuk, BM, Kurkan, IK, Kutenkov, OP, Loginov, SV, Pegel, IV, Polevin, SD & Zherlitsyn, AA 2001, S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store. in IEEE International Conference on Plasma Science. 28th IEEE International Conference on Plasma Science/ 13th IEEE International Pulsed Power Conference, Las Vegas, NV, United States, 17.6.01.
Efremov AM, Kitsanov SA, Klimov AI, Korovin SD, Kovalchuk BM, Kurkan IK et al. S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store. In IEEE International Conference on Plasma Science. 2001
Efremov, A. M. ; Kitsanov, S. A. ; Klimov, Alexey Ivanovich ; Korovin, S. D. ; Kovalchuk, B. M. ; Kurkan, I. K. ; Kutenkov, O. P. ; Loginov, S. V. ; Pegel, I. V. ; Polevin, S. D. ; Zherlitsyn, A. A. / S-band vircator with E-beam premodulation based on compact HV pulser with inductive energy store. IEEE International Conference on Plasma Science. 2001.
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abstract = "An S-band vircator with electron beam premodulation, without external magnetic field, based on a compact HV pulse generator with inductive energy store, was realized in experiment. The primary capacitor of the HV pulser was switched by means of a five-channel multigap discharger onto serially connected inductance and wire fuse. The short-circuit current of the generator was 65 kA with quarter-period of oscillation 6.6 mcs. The arising voltage made a peaking discharger operate thereby connecting the storing inductance with the electron vacuum diode of the vircator. The pulse width at the cathode could be varied within 50 - 150 ns using a slicer. The microwave power of the vircator was measured using calibrated dipole antennas by integrating over the radiation pattern, and a 60-dB directed coupler built in the single-mode output waveguide of the vircator. The vircator operated at the mode TE10. The output microwave power was 300 MW with 5{\%} efficiency and 50 ns pulse width. The generation frequency was 2.65 GHz, stable during the pulse despite the fact that the decrease in the vacuum diode impedance during the pulse was a factor of three. The generation frequency was tunable within 15{\%} at half power level. The maximum microwave output corresponded to 20 - 30{\%} excess of electron beam current above the critical one.",
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AU - Efremov, A. M.

AU - Kitsanov, S. A.

AU - Klimov, Alexey Ivanovich

AU - Korovin, S. D.

AU - Kovalchuk, B. M.

AU - Kurkan, I. K.

AU - Kutenkov, O. P.

AU - Loginov, S. V.

AU - Pegel, I. V.

AU - Polevin, S. D.

AU - Zherlitsyn, A. A.

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N2 - An S-band vircator with electron beam premodulation, without external magnetic field, based on a compact HV pulse generator with inductive energy store, was realized in experiment. The primary capacitor of the HV pulser was switched by means of a five-channel multigap discharger onto serially connected inductance and wire fuse. The short-circuit current of the generator was 65 kA with quarter-period of oscillation 6.6 mcs. The arising voltage made a peaking discharger operate thereby connecting the storing inductance with the electron vacuum diode of the vircator. The pulse width at the cathode could be varied within 50 - 150 ns using a slicer. The microwave power of the vircator was measured using calibrated dipole antennas by integrating over the radiation pattern, and a 60-dB directed coupler built in the single-mode output waveguide of the vircator. The vircator operated at the mode TE10. The output microwave power was 300 MW with 5% efficiency and 50 ns pulse width. The generation frequency was 2.65 GHz, stable during the pulse despite the fact that the decrease in the vacuum diode impedance during the pulse was a factor of three. The generation frequency was tunable within 15% at half power level. The maximum microwave output corresponded to 20 - 30% excess of electron beam current above the critical one.

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