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

Double-C structure SIW transmission line

A transmission line, a traditional technology, applied in the direction of waveguides, circuits, electrical components, etc., can solve the problems of reducing the Q value of the traveling cavity, increasing the outward radiation of electromagnetic waves, and the unsatisfactory state of the traveling wave, so as to achieve a high Q value of the traveling cavity and outward electromagnetic waves The effect of small radiation and low loss

Active Publication Date: 2018-09-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention replaces the metal cylinders in the traditional SIW by adopting a double-C structure (interlaced sheet-shaped arc metal sheets), so as to overcome the leakage of electromagnetic waves caused by the two rows of metal cylinders in the traditional SIW structure during the transmission process, resulting in the failure of traveling waves. The state is not ideal, the technical problem of reducing the Q value of the cavity and increasing the outward radiation of electromagnetic waves

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
  • Double-C structure SIW transmission line
  • Double-C structure SIW transmission line
  • Double-C structure SIW transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] Such as figure 1 As shown, it is an X-band traditional SIW transmission line that transmits in the air, with a center frequency of 10GHZ and a cutoff frequency of 6.5GHZ. The electrical length of the transmission line is 73.7mm, the height is 2.5mm, the distance between two rows of parallel metal cylinders is 29mm, the cylinder radius is 0.3mm, and the distance between the centers of two adjacent cylinders is 1.1mm. figure 2 , image 3 is the simulated S12 parameter and Q value.

[0018] Such as Figure 4 As shown, it is a SIW transmission line with double C structure. The electrical length, height, cut-off frequency, and center frequency are consistent with traditional SIW transmission lines. The outer radius of the sheet arc metal sheet is 0.7mm, and the inner radius is 0.6mm. Figure 6 It is a high-order mode a...

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 relates to the technologies of microwave and transmission lines, and specifically relates to a double-C structure SIW transmission line. The transmission line has the high-Q, low-loss and low-leakage characteristics. According to the invention, all rows of metal cylinders of a conventional SIW transmission line are replaced by the upper and lower rows of sheet arc metal pieces whichare staggered, wherein all sheet arc metal pieces are the same, and the internal diameters of the arcs are D. The shortest distance D of the adjacent sheet arc metal pieces in a single row is d, the shortest distance between two ends of the arcs is f and the shortest distance between the staggered sheet arc metal pieces in the upper and lower rows is w, wherein 0<d<D, d<f, and 0<w<=d. According tothe invention, a double-C structure is employed for replacing a metal cylinder in a conventional SIW, and the technical problems that the OFF state of a traveling wave is not ideal, the Q value of aline cavity is reduced and the outward radiation of the electromagnetic waves is increased, which are caused by the leaking of the electromagnetic waves caused by two rows of metal cylinders of the conventional SIW structure, in the transmission process are solved under the condition that a no-TM mode is guaranteed.

Description

technical field [0001] The invention relates to microwave and transmission line technology, in particular to a double-C structure SIW transmission line, which has the characteristics of high Q, low loss and low leakage. Background technique [0002] Since the advent of Maxwell's equations, in just over a hundred years, the application technology of electromagnetism in engineering has developed by leaps and bounds. From metal waveguides to planar integrated microstrip lines, the microwave technology industry has experienced one milestone after another. The bulky metal waveguide no longer meets the requirements of microwave integration in today's society. The microstrip circuit is small in size, low in cost, and easy to integrate. However, the open structure of the microstrip circuit itself limits its quality factor and power capacity. [0003] Substrate integrated waveguide (SIW) is a new type of waveguide structure proposed in recent years. It is to set two rows of metal cy...

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 Applications(China)
IPC IPC(8): H01P3/18
CPCH01P3/18
Inventor 汪晓光张丽君陈良方建成刘水平肖宇杜凤媛谢海岩梁迪飞
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