Resonators (H01J23/18)

Traveling wave lamp with magnetic periodic focusing system // 2352017
FIELD: electrics.SUBSTANCE: invention concerns electric vacuum ultra high frequency devices, particularly in O-type traveling wave lamp with magnetic periodic focusing system (MPFS). Lamp includes MPFS combined with resonance slow-down system and consisting of intermittent axially magnetised ring magnets, polar headpieces and ferromagnetic inserts. To achieve required harmonic component level in magnetic field with non-sinusoid distribution, at least a part of MPFS behind high frequency power input consists of adjoining cells, each including at least one unidirectional magnetisation magnet and three ferromagnetic inserts between polar headpieces. Magnets in each two neighbour cells have opposite magnetisation. Inserts are positioned with gaps against polar headpieces in hubs in the form of step rotation bodies and fixated by annular elements, and form inner cavities of high frequency resonators in slow-down system. Hubs and annular elements are made of non-magnetic material with high heat conductivity and comprise vacuum shell together with polar headpieces.EFFECT: enhanced current permission of beam in high-performance traveling wave lamp in short-wave part of UHF range due to intense electron stream focusing in transit channel.3 cl, 9 dwg

Traveling wave lamp with magnetic periodic focusing system // 2352016
FIELD: electrics.SUBSTANCE: invention concerns electric vacuum ultra high frequency (UHF) instruments, particularly construction of O-type traveling wave lamp with magnetic periodic focusing system (MPFS). Lamp includes MPFS combined with resonance slow-down system and consisting of intermittent axially magnetised ring magnets, polar headpieces with ferromagnetic hubs and non-magnetic diaphragms with capacitance bushings, positioned between them and forming transit channel. At least a part of MPFS behind high frequency power input includes ferromagnetic insert forming slow-down system resonators together with adjoining polar heads. Another resonator part is formed by diaphragm in the form of step rotation body, and annular element fixating the insert in diaphragm. Diaphragms and annular elements are made of non-magnetic material with high heat conductivity. Selection of ferromagnetic insert profile, size and position between polar heads defines magnetic field with given high harmonic components and non-sinusoid distribution.EFFECT: enhanced current permission of beam in high-performance traveling wave lamp in short-wave part of UHF range due to intense electron stream focusing in transit channel of traveling wave lamp with low pulsation.3 cl, 8 dwg

icrowave device of o-type // 2328053
FIELD: electricity.SUBSTANCE: invention is related to electronic microwave equipment, namely to powerful wide band microwave devices of O-type, for instance, to multiple-beam klystrons that mostly operate in medium and short-wave part of centimeter range of waves length. Microwave device of O-type consists of sequentially installed along its axis electron gun, active resonators in the form of wave conductors segment and collector. Active resonators are made as stepwise changing in height, where height is the distance along microwave device axis between end walls of active resonator. In active resonator floating-drift tubes are installed linearly in rows and are fixed in its opposite end walls, and ends of coaxially installed floating-drift tubes are separated by permanent high-frequency gap. Central rows of floating-drift tubes are installed in sections of active resonators with the least height, and subsequent rows of floating-drift tubes that are installed along both sides of central rows, are installed in sections of active resonators with higher heights. It is also suggested to use inlet and outlet active resonator with non-symmetric installation of floating-drift tubes relative to opposite side walls of these resonators. Inlet active resonator may be connected to energy input directly through inlet wave conductor or through inlet passive resonator and inlet wave conductor. Outlet active resonator may be connected with energy output directly through outlet wave conductor or through one or several outlet passive resonators and outlet wave conductor.EFFECT: increase of efficiency factor at the account of improvement of electric field distribution uniformity in the sphere of electronic flow interaction with microwave field.12 cl, 5 dwg

ultibeam o-type device // 2244980
FIELD: microwave engineering; high-power broadband multibeam devices such as klystrons.SUBSTANCE: proposed O-type device has two multibeam floating-drift tubes in each active resonator with operating wave mode H201, diameter D of each tube being chosen from condition D = (0.4 0.45)λ, where λ is wavelength corresponding to center frequency of device operating band. Input and output active resonators with floating-drift tubes asymmetrically disposed relative to opposite walls of these resonators are proposed for use. Input active resonator can be connected to energy input directly or through input waveguide, or through input passive resonator and input waveguide. Output active resonator can be connected to energy output through one output passive resonator and output waveguide or through two output passive resonators and input waveguide. Two multibeam floating-drift tubes are disposed in each active resonator including intermediate ones.EFFECT: enhanced output power, efficiency, and practical feasibility, simplified design, facilitated manufacture, assembly, and adjustment of device.11 cl, 4 dwg

Traveling-wave tube // 2207654
The invention relates to the vacuum microwave devices, in particular, traveling wave tubes Of the type

nohopocetny open resonator "cortes" // 2045797
The invention relates to microwave engineering of millimeter and submillimeter ranges, namely, resonant systems, and is intended primarily for use in generating-amplifying microwave devices that use quasi-resonant system

nohopocetny open resonator // 2024123
The invention relates to the field of microwave engineering of millimeter and submillimeter wavelengths, namely resonant systems microwave ranges, and is intended primarily for use in the generator-amplifier devices that use quasi-resonant system
 
2550998.
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