BROADBAND MULTIPORT KLYSTRON WITH A MULTILINK FILTER SYSTEM Russian patent published in 2018 - IPC H01J25/10 

FIELD: physics.

SUBSTANCE: invention relates to multipath klystrons used as power amplifiers of electromagnetic waves of centimeter and millimeter wavelength ranges. Design of low-voltage multipath broadband klystron contains n (n = 1, 2, 3, …, n) passive frequency tunable resonators, located outside the vacuum part of the klystron in the output of microwave energy or in the input and output of microwave energy and containing: passive resonator from a vacuum-dense dielectric microwave window, made in the form of a waveguide-dielectric resonator, which is formed by a section of a waveguide with dielectric filling in the form of a dielectric rod sealed in the waveguide channel, dimensions of the waveguide-dielectric resonator correspond to the condition of approximate equality of its resonant frequency to the upper frequency of the klystron gain band ƒ_B; passive resonator from a rectangular waveguide with dielectric inhomogeneity in the form of a dielectric rod exciting the waveguide and being extension of the dielectric rod sealed in the waveguide channel; passive resonators from tuning pins, one of which is installed in the middle of a wide wall of a rectangular waveguide in the immediate vicinity of the end part of the dielectric rod, and at least one more resonant pin, which is set at a distance S from the axis of the first not less than a quarter of the wavelength at the frequency ƒ_B, pins being configured to change their length, allowing the rectangular waveguide with a dielectric discontinuity to be tuned and tuning pins at the resonant frequency of the active resonator or with a specified detuning from this frequency, which provides a predetermined difference in the transmission power of the microwave power in the operating band of the klystron frequencies from the input path to the active resonator input and from the output active resonator to the output path.

EFFECT: expansion of the amplification band without increasing the size and weight of the input and output resonator systems of the low-voltage multipath broadband klystron.

6 cl, 4 dwg