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

Method for predicting micro discharge threshold of cavity filter

A cavity filter and micro-discharge technology, which is applied in the direction of instruments, electrical digital data processing, special data processing applications, etc., can solve the problems of consuming simulation time and inability to make automatic judgments, and achieve strong practicability and high engineering application value , wide applicability

Active Publication Date: 2013-02-13
XIAN INSTITUE OF SPACE RADIO TECH
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Pérez and Vicente et al. proposed a method for predicting the microdischarge threshold based on the coaxial transmission line system, and judged the microdischarge by recording the change of the number of electrons in the microwave components with time. This method is different from the method of the present invention, and at the same time, the method consumes simulation It takes a long time, and the threshold judgment is based on the experience of the researcher, and cannot be judged automatically

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
  • Method for predicting micro discharge threshold of cavity filter
  • Method for predicting micro discharge threshold of cavity filter
  • Method for predicting micro discharge threshold of cavity filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:

[0034] In this specific embodiment, a low-pass ridge waveguide cavity filter is taken as an example to describe the method for predicting the microdischarge threshold of the cavity filter according to the present invention.

[0035] Using the method of the present invention to predict the micro-discharge threshold of the low-pass ridge waveguide cavity filter, the specific implementation process is as follows:

[0036] A. Set the initial electromagnetic signal input to the low-pass ridge waveguide cavity filter as a time-domain continuous wave signal x(t)=A 0 sin(2πf 0 t), frequency f 0 is 3.9GHz, the input power is P 0 , A 0 with P 0 Correspondingly, set the power scanning range P 1 ~P 2 (P 1 ≤P 0 ≤P 2 ), P 1 50W, P 2 is 1000W, the simulation time T(T≥100 / f 0 ) is 100ns, time step t 0 is 0.00049859815ns, the total time step N t =...

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 method for predicting micro discharge threshold of a cavity filter. The method includes determining micro discharge value simulation parameter, building a particle simulation area of the cavity filter, conducting micro discharge value simulation, recording secondary electron transmission changing with time in the micro discharge value simulation process, conducting value processing and conducting automatic scanning and prediction on micro discharge threshold power. A micro discharge value simulation and threshold power judgment method of the cavity filter is designed by utilizing the particle simulation technology and combining secondary electron transmitting characteristics of metal materials on the basis of a geometrical model and a particle simulation area of the cavity filter. The method achieves accurate value analysis and prediction of the micro discharge threshold of the cavity filter, greatly shortens development period, saves expensive micro discharge experiment cost and is very suitable for prediction of the micro discharge threshold of the cavity filter with a complex structure and micro discharge design of a large power microwave part.

Description

technical field [0001] The invention relates to the application field of space special effects, in particular to a numerical simulation method for predicting the micro-discharge threshold of a cavity filter. Background technique [0002] Microdischarge is a special spatial effect generated by secondary electron emission in microwave devices in a vacuum environment. When microdischarge occurs, it will bring defects such as increased noise floor and signal deterioration, and even cause permanent damage to microwave devices. In order to eliminate the hidden danger of micro-discharge at the beginning of component design and improve the reliability and service life of microwave components, it is necessary to predict the micro-discharge threshold of microwave components and avoid them. [0003] Especially for the cavity filter, due to the complex electromagnetic field distribution, the simple approximate equivalent cannot predict its micro-discharge threshold. At present, the pr...

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): G06F17/50
Inventor 李韵王新波崔万照
Owner XIAN INSTITUE OF SPACE RADIO TECH
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