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A helical traveling wave tube based on segmented serial slow wave system

A technology of slow wave system and helix, which is applied in the field of vacuum microwave electronic devices, can solve the problems of large system volume and high system manufacturing cost, and achieve the effect of widening the working bandwidth, reducing manufacturing and use costs, and reducing the size of the whole machine

Active Publication Date: 2019-01-15
NO 12 RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This working method needs to supply power to the multiple traveling wave tubes separately, and needs to configure a set of power supply and input and output coupling system for each traveling wave tube, the system manufacturing cost is high and the system volume is large

Method used

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  • A helical traveling wave tube based on segmented serial slow wave system
  • A helical traveling wave tube based on segmented serial slow wave system
  • A helical traveling wave tube based on segmented serial slow wave system

Examples

Experimental program
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Embodiment 1

[0033] Such as figure 2 , image 3 and Figure 4 Shown is a specific embodiment of a helical traveling wave tube based on the segmented serial slow wave system of the present invention, the helical traveling wave tube includes: electron gun 21, slow wave system 22, focusing system 23 and collector twenty four. Among them, the slow wave system 22 includes two sections of the first slow wave structure 010 and the second slow wave structure 020 coupled in series, and each slow wave structure includes input couplers 011, 021, helixes 012, 022 and output couplers respectively. The couplers 013, 023, the input coupler and the output coupler preferably match the working frequency of the slow wave structure respectively. The electron gun 21 can be used to form an electron beam that meets the work requirements, the slow wave system 22 is used to amplify the signals in two different frequency bands respectively or to amplify two signals at the same time, the focusing system 23 is us...

Embodiment 2

[0039] Such as Figure 5 As shown, it is another specific embodiment of a helical traveling wave tube based on the segmented serial slow wave system 32 of the present invention. The difference between this embodiment and the first embodiment is that the helical traveling wave tube in this embodiment An external electrode 34 is set between two adjacent slow-wave structures, and the external electrode 34 is used to introduce a voltage to accelerate the electron beam, so that the helical traveling wave tube can meet the requirements of multiple operating voltages and accelerate the electron beam. Accelerate multiple times to meet the requirements of each section of slow wave structure on the initial velocity of electron injection, and realize multi-point work. When no external electrode 34 is provided between two adjacent slow wave structures of the helical TWT or no voltage is applied to the external electrode 34, the helical TWT works at a single point, that is, the electron be...

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Abstract

The invention discloses a helix travelling wave tube based on a segmented serial-connected slow wave system. The helix travelling wave tube comprises an electron gun, the slow wave system, a focusing system and a collector, the slow wave system comprises at least two segments of slow-wave structures coupled in a serial connection way, and each segment of slow wave structure comprises an input coupler, a helix and an output coupler. More than two slow wave structures are connected in series in one travelling wave tube, the working bandwidth of the travelling wave tube is broadened, the travelling wave tube realizes multi-frequency multi-point work, the total manufacturing and using cost is reduced, and the whole size is reduced.

Description

technical field [0001] The invention relates to the field of vacuum microwave electronic devices. More specifically, it relates to a helical traveling wave tube based on a segmented serial slow wave system. Background technique [0002] The traveling wave tube is a kind of kinetic energy transducing device, which realizes the amplification of the microwave signal through the energy exchange between the electron beam and the microwave signal. This energy conversion can only be realized under the condition that the velocity of the electron beam is close to the propagation speed of the microwave signal. In free space, the propagation speed of the microwave signal is close to the speed of light, so measures must be taken to slow down the propagation speed of the microwave. The method adopted is to make the microwave signal travel along the slow wave line, so that the speed of the electron beam is close to the microwave with which it exchanges energy. The speed of the signal. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J25/34H01J23/26
CPCH01J23/26H01J25/34H01J2223/26H01J2225/34
Inventor 王严梅张磊王月芳邱立
Owner NO 12 RES INST OF CETC