Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Structure and method for improving double-grating coupling

A dual grating and grating technology, applied in the field of vacuum electronics, can solve the problems of difficult coupling of return wave tubes, low power radiation, and slow development of return wave tube applications, so as to increase the injection wave interaction space, improve power radiation, and enhance coupling effect

Active Publication Date: 2018-11-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of difficult coupling and low power radiation of the return wave tube in the high frequency band (terahertz band), the development of the application of the return wave tube in the high frequency band is extremely slow

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Structure and method for improving double-grating coupling
  • Structure and method for improving double-grating coupling
  • Structure and method for improving double-grating coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a structure for improving the coupling efficiency of double gratings includes a housing 1 and a plurality of grating columns 3. The housing 1 and the grating columns 3 can be made of materials such as gold, silver, copper, etc., and a channel 5 is arranged in the housing 1. The top is provided with a first groove 2, the bottom of the housing 1 is provided with a second groove 6, the opening of the first groove 2 and the opening of the second groove 6 are oppositely arranged; the first groove 2 and the second The grooves 6 are respectively located on the upper and lower sides of the channel 5; a plurality of the grating columns 3 are arranged at intervals in the first groove 2 and the second groove 6 respectively, and the bottom ends of the grating columns 3 are fixedly connected to the inner wall of the housing 1; Each grating column is provided with an opening 4, the grating column 3 is perpendicular to...

Embodiment 2

[0027] A method for improving the coupling efficiency of double gratings, which is applied to a structure for improving the coupling efficiency of double gratings, and can also be implemented independently. Openings 4 are arranged on the top, and electron beams are emitted from the front end of the channel 5 through the electron gun. The electromagnetic wave is coupled with the surface of the grating column 3 through the channel 5 to generate beam interaction. Since the multiple openings 4 form two new channels, an increase of The electric field coupling between the gratings enables the electron beam to interact more effectively with the grating structure, effectively improving the radiation efficiency, and finally the electron beam is output through the rear end of the channel 5.

[0028] In order to verify the effect of the present invention, this embodiment sets the observation point at the same position of the structure of the present invention and the existing double grati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a structure for improving double-grating coupling efficiency, comprising a casing (1) and a plurality of grating columns (3), wherein a channel (5) is arranged in the casing (1), a first groove (2) is arranged above the casing (1), a second groove (6) is disposed under the casing (1), and the opening of the first groove (2) and the opening of the second groove (6) are opposite to each other; the first groove (2) and the two grooves (6) are respectively located on the upper and lower sides of the channel (5); the plurality of grating columns (3) are respectively disposedin the first groove (2) and the second groove (6), and the bottom ends of the grating columns (3) are fixedly connected to the inner wall of the casing (1); each of the grating columns is provided with an opening (4), and the grating columns (3) are perpendicular to the extending direction of the channel (5). By opening at the grating structure, the invention increases the injection wave interaction space, effectively enhances the coupling between the electron beam and the grating, and improves the power radiation.

Description

technical field [0001] The invention relates to the technical field of vacuum electronics, in particular to a structure and method for improving double grating coupling. Background technique [0002] The return wave tube is an oscillator that self-excites and can generate electromagnetic wave oscillation with continuously adjustable frequency without the need for a signal. The core component in the return wave tube is the slow wave structure, and the double grating is a relatively common slow wave structure in the return wave tube. The electron beam emitted by the electron gun is coupled with the grating structure, and the injection wave interaction occurs. Because the return wave tube has the characteristics of broadband tuning, high power and high efficiency, it is suitable for applications such as radar and electronic interference, and can also be used as a driving source for other high-power microwave amplifiers. However, due to the characteristics of difficult coupling...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01J23/24
CPCH01J23/24
Inventor 肖川红吴振华
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com