6 research outputs found
UHF-generation in a coaxial slowing down structure filled with plasma
Microwave generation by an electron beam in a coaxial transmission line in which the inner and outer conductors
are both corrugated is studied theoretically. An annular electron beam propagates in a transport channel filled entirely
with plasma. The results of nonlinear modeling of amplification of eigen waves in that structure are represented. The
wave saturation amplitudes for various plasma densities are found. The influence of wave damping on the output power
of this amplifier is studied. It is shown that the threshold current, at which one there is no amplification in whole wide
passband
Amplification and excitation of microwaves by an electron beam in a disk-loaded coaxial hybrid waveguide
We have presented the results of the extensive experimental investigations of the amplification and oscillation excitation by the electron beam in hybrid plasma waveguides (HPW). The structure used as HPW a coaxial line with the disk-loaded electrodes and the plasma-filled passage channel. We have examined characteristics of the oscillations excited by the beam. As the investigation of the video pulse passage through the slow-wave structure under the currents close to the start-up value indicates, the working gas pressure heightening in the bore results in extending the system transmission band because of the plasma densification. The measured microwave signal gain and beam minimum currents, to start with the value of which the amplification is possible in a beam-plasma system, are in good agreement with the corresponding parameters calculated.ΠΠΎΠ΄Π°Π½ΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΠΏΡΠ΄ΡΠΈΠ»Π΅Π½Π½Ρ ΡΠ° Π·Π±ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΊΠΎΠ»ΠΈΠ²Π°Π½Ρ Π΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΈΠΌ ΠΏΡΡΠΊΠΎΠΌ Ρ Π³ΡΠ±ΡΠΈΠ΄Π½ΠΎΠΌΡ ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠΌΡ Ρ
Π²ΠΈΠ»Π΅Π²ΠΎΠ΄Ρ (ΠΠΠ₯). Π―ΠΊ ΠΠΠ₯ Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΡΡΡΡΡ ΠΊΠΎΠ°ΠΊΡΡΠ°Π»ΡΠ½Π° Π»ΡΠ½ΡΡ Π· Π΄ΠΈΡΠΊΠ°ΠΌΠΈ Π½Π° Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π°Ρ
, ΠΏΡΠΎΠ»ΡΠΎΡΠ½ΠΈΠΉ ΠΊΠ°Π½Π°Π» ΡΠΊΠΎΡ Π·Π°ΠΏΠΎΠ²Π½Π΅Π½ΠΎ ΠΏΠ»Π°Π·ΠΌΠΎΡ. ΠΠΈΠ²ΡΠ΅Π½ΠΎ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΊΠΎΠ»ΠΈΠ²Π°Π½Ρ, Π·Π±ΡΠ΄ΠΆΡΠ²Π°Π½ΠΈΡ
ΠΏΡΡΠΊΠΎΠΌ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΡΠΎΡ
ΠΎΠ΄ΠΆΠ΅Π½Π½Ρ Π²ΡΠ΄Π΅ΠΎΡΠΌΠΏΡΠ»ΡΡΠ° ΡΠ΅ΡΠ΅Π· ΡΠΏΠΎΠ²ΡΠ»ΡΠ½ΡΡΡΡ ΡΡΡΡΠΊΡΡΡΡ ΠΏΡΠΈ ΡΡΡΡΠΌΠ°Ρ
ΠΏΠΎΠ±Π»ΠΈΠ·Ρ ΠΏΡΡΠΊΠΎΠ²ΠΈΡ
ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΠΎ Π·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ ΡΠΈΡΠΊΡ ΡΠΎΠ±ΠΎΡΠΎΠ³ΠΎ Π³Π°Π·Ρ Ρ ΠΏΡΠΎΠ»ΡΠΎΡΠ½ΠΎΠΌΡ ΠΊΠ°Π½Π°Π»Ρ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡ Π΄ΠΎ ΡΠΎΠ·ΡΠΈΡΠ΅Π½Π½Ρ ΡΠΌΡΠ³ΠΈ ΠΏΡΠΎΠΏΡΡΠΊΠ°Π½Π½Ρ ΡΠΈΡΡΠ΅ΠΌΠΈ ΡΠ·-Π·Π° ΠΏΡΠ΄Π²ΠΈΡΠ΅Π½Π½Ρ Π³ΡΡΡΠΈΠ½ΠΈ ΠΏΠ»Π°Π·ΠΌΠΈ. ΠΠΈΠΌΡΡΡΠ²Π°Π½Ρ ΠΊΠΎΠ΅ΡΡΡΡΡΠ½ΡΠΈ ΠΏΡΠ΄ΡΠΈΠ»Π΅Π½Π½Ρ ΠΠ§-ΡΠΈΠ³Π½Π°Π»ΡΠ² ΡΠ° ΡΡΡΡΠΌΠΈ ΠΏΡΡΠΊΠ°, ΠΏΠΎΡΠΈΠ½Π°ΡΡΠΈ Π· ΡΠΊΠΈΡ
Ρ ΠΌΠΎΠΆΠ»ΠΈΠ²ΠΈΠΌ ΠΏΡΠ΄ΡΠΈΠ»Π΅Π½Π½Ρ Ρ ΠΏΡΡΠΊΠΎΠ²ΠΎ-ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΡΠΉ ΡΠΈΡΡΠ΅ΠΌΡ, Π΄ΠΎΠ±ΡΠ΅ ΡΠΏΡΠ²ΠΏΠ°Π΄Π°ΡΡΡ Π· ΡΠΎΠ·ΡΠ°Ρ
ΠΎΠ²Π°Π½ΠΈΠΌΠΈ.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΡΡΠΈΠ»Π΅Π½ΠΈΡ ΠΈ Π²ΠΎΠ·Π±ΡΠΆΠ΄Π΅Π½ΠΈΡ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΠΌ ΠΏΡΡΠΊΠΎΠΌ Π² Π³ΠΈΠ±ΡΠΈΠ΄Π½ΠΎΠΌ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΌ Π²ΠΎΠ»Π½ΠΎΠ²ΠΎΠ΄Π΅ (ΠΠΠ). Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΠΠ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ ΠΊΠΎΠ°ΠΊΡΠΈΠ°Π»ΡΠ½Π°Ρ Π»ΠΈΠ½ΠΈΡ Ρ Π΄ΠΈΡΠΊΠ°ΠΌΠΈ Π½Π° ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°Ρ
, ΠΏΡΠΎΠ»Π΅ΡΠ½ΡΠΉ ΠΊΠ°Π½Π°Π» ΠΊΠΎΡΠΎΡΠΎΠΉ Π·Π°ΠΏΠΎΠ»Π½Π΅Π½ ΠΏΠ»Π°Π·ΠΌΠΎΠΉ. ΠΠ·ΡΡΠ΅Π½Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ, Π²ΠΎΠ·Π±ΡΠΆΠ΄Π΅Π½Π½ΡΡ
ΠΏΡΡΠΊΠΎΠΌ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π²ΠΈΠ΄Π΅ΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ° ΡΠ΅ΡΠ΅Π· Π·Π°ΠΌΠ΅Π΄Π»ΡΡΡΡΡ ΡΡΡΡΠΊΡΡΡΡ ΠΏΡΠΈ ΡΠΎΠΊΠ°Ρ
Π²Π±Π»ΠΈΠ·ΠΈ ΠΏΡΡΠΊΠΎΠ²ΡΡ
ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΡΠΎ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΡΠ°Π±ΠΎΡΠ΅Π³ΠΎ Π³Π°Π·Π° Π² ΠΏΡΠΎΠ»Π΅ΡΠ½ΠΎΠΌ ΠΊΠ°Π½Π°Π»Π΅ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΡ ΠΏΠΎΠ»ΠΎΡΡ ΠΏΡΠΎΠΏΡΡΠΊΠ°Π½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈΠ·-Π·Π° ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΠΏΠ»Π°Π·ΠΌΡ. ΠΠ·ΠΌΠ΅ΡΠ΅Π½Π½ΡΠ΅ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΡ ΡΡΠΈΠ»Π΅Π½ΠΈΡ ΠΠ§-ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΈ ΡΠΎΠΊΠΈ ΠΏΡΡΠΊΠ°, Π½Π°ΡΠΈΠ½Π°Ρ Ρ ΠΊΠΎΡΠΎΡΡΡ
Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ ΡΡΠΈΠ»Π΅Π½ΠΈΠ΅ Π² ΠΏΡΡΠΊΠΎΠ²ΠΎ-ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅, Ρ
ΠΎΡΠΎΡΠΎ ΡΠΎΠ²ΠΏΠ°Π΄Π°ΡΡ Ρ ΡΠ°ΡΡΠ΅ΡΠ½ΡΠΌΠΈ