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

A Broadband High Power Coaxial Window Structure

A high-power, coaxial window technology, applied in the direction of the coupling device of the transit time type tube, can solve the problems of incompetence, electric field breakdown, narrow bandwidth of the coaxial traveling wave window, etc., to reduce the electric field and improve the power capacity , Improve the effect of power capacity and bandwidth

Active Publication Date: 2018-02-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the coaxial traveling wave window with this structure effectively reduces the electric field on the surface of the window, in order to achieve impedance matching, the outer radius of the matching diaphragm is relatively large, which may easily cause the electric field near the matching diaphragm to be too large, resulting in ignition or electric field breakdown
At the same time, the bandwidth of the coaxial traveling wave window of this structure is relatively narrow, which is only suitable for use in vacuum electronic devices that do not require high bandwidth.
It is not suitable for occasions that require high bandwidth and power

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
  • A Broadband High Power Coaxial Window Structure
  • A Broadband High Power Coaxial Window Structure
  • A Broadband High Power Coaxial Window Structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The implementation of the present invention will be described below through specific examples and in conjunction with the accompanying drawings.

[0022] This embodiment provides an L-band broadband high-power coaxial window, and performs a performance comparison with the L-band traveling-wave coaxial window and the L-band half-wavelength coaxial window. The specified operating frequency f of the three kinds of windows 0 1.3GHz.

[0023] For the structural dimensions of the half-wavelength coaxial window, see Figure 5 . Among them, the coaxial inner conductor radius a 1 13.385mm, inner radius of coaxial outer conductor b 1 The diameter is 30.8mm, the inner and outer conductors are made of nickel-copper alloy, and the coaxial inner conductor and the coaxial outer conductor form a 50 ohm standard coaxial line. The thickness of the ceramic window t 1 The thickness is 36.8mm, and the ceramic window is made of alumina, with a relative dielectric constant of 9.8.

[0...

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 broadband high-power coaxial window structure, which belongs to the technical field of microwave energy transmission windows of vacuum electronic devices. Based on the traveling-wave coaxial window, an air or vacuum gap is introduced on both sides of the ceramic window, and the resulting coaxial outer conductor ladder is used to generate additional capacitance, which together with the matching diaphragm realizes impedance matching at the center of the window. The coaxial window with this structure can realize impedance matching at the window and traveling wave transmission in the window by adjusting the gap thickness on both sides of the ceramic window, the radius, thickness and position of the diaphragm, and thus has a large power capacity. ; At the same time, the thickness of the gap on both sides of the ceramic window can be adjusted, the radius of the diaphragm can be reduced, and the purpose of reducing the electric field near the diaphragm can be achieved, and the coaxial window with this structure has a wider bandwidth.

Description

technical field [0001] The invention belongs to the technical field of microwave energy transmission windows of vacuum electronic devices, and in particular relates to a broadband high-power coaxial window structure. Background technique [0002] Microwave energy transmission window is one of the key components of vacuum electronic devices. Its function is to isolate the high-vacuum environment inside the device from the external atmospheric environment, and at the same time transmit high-frequency power to the load or antenna with as little reflection as possible. The performance of the microwave energy transmission window has an important impact on the frequency band, power capacity, reliability and lifetime of the device. [0003] Coaxial windows are often used in large high-power installations such as electron linear accelerators, international linear colliders, and neutron spallation sources. These high-power devices require the coaxial window to be able to transmit po...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/36
Inventor 朱小芳胡权胡玉禄徐立李斌
Owner UNIV OF ELECTRONICS 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