High-Q cross-coupled slot waveguide microwave filter

A microwave filter and cross-coupling technology, which is applied to waveguide devices, electrical components, circuits, etc., can solve the problem of poor selectivity in the transition zone of slotted waveguide filters, and achieve high quality factor and strong selectivity.

Active Publication Date: 2019-06-11
广东昌宝科技股份有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dispersion characteristics of the structure, the selectivity of th

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
  • High-Q cross-coupled slot waveguide microwave filter
  • High-Q cross-coupled slot waveguide microwave filter
  • High-Q cross-coupled slot waveguide microwave filter

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] The present invention will be further described in detail below in conjunction with the drawings.

[0022] See figure 1 , A high-Q cross-coupled slot waveguide microwave filter, comprising a rectangular metal bottom plate 1 and a metal top plate 3. The metal bottom plate 1 and the metal top plate 3 are both rectangular, and the material is aluminum or copper. The metal top plate 3 has four corners A screw hole 4 with a diameter of 2mm is opened at each place, and there are four cuboid cut corners on the four corners of the lower side, and the size of the cut corners is 4mm×4mm×3mm.

[0023] Four metal square posts 2 are provided between the metal bottom plate 1 and the metal top plate 3, which are a supporting structure for the metal top plate 3. The four metal square posts 2 are located at the four corners of the metal bottom plate 1. The four metal square posts 2 is a square with a cross section of 4mm×4mm and a height of 10mm. Four metal square pillars 2 have four screw h...

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

PropertyMeasurementUnit
Heightaaaaaaaaaa
Heightaaaaaaaaaa
Heightaaaaaaaaaa
Login to view more

Abstract

The invention relates to a high-Q cross-coupled slot waveguide microwave filter, comprising a rectangular metal bottom plate, a plurality of metal stand columns, a metal square column and a metal topplate; the metal stand columns are positioned on the metal bottom plate, the metal square column is used for supporting the structure, an air gap is reserved between the metal stand column and the metal top plate and constitutes an electromagnetic band gap structure together with the metal stand columns, the metal bottom plate and the metal top plate, the metal stand columns together with the metal bottom plate and the metal top plate forms five cuboid cavities, five resonant cavities are formed, two rows of metal stand columns are arranged between the adjacent resonant cavities and are used for energy coupling between the adjacent resonant cavities, metal round columns are respectively arranged at the centers of the first cavity, the second cavity, the third cavity and the fifth cavity onthe metal bottom plate, two metal circular holes are formed in the metal top plate right above the first cavity and the fifth cavity, the two metal circular holes are arranged as two feeding ports, and the two feeding ports are used for feeding the filter from the top side through a coaxial probe. The filter has a relatively high load-free quality factor; and meanwhile, the filter has the characteristic of being higher in selectivity.

Description

technical field [0001] The invention relates to a waveguide resonant cavity filter, in particular to a high-Q cross-coupling slot waveguide microwave filter. Background technique [0002] With the rapid development of wireless communication, spectrum resources become very tight, so higher requirements are placed on the performance of microwave filters. Microwave filters with characteristics such as high selectivity and low insertion loss have begun to receive widespread attention. In addition, the frequency of the communication system is extended to higher frequency bands. In the millimeter wave band and higher frequency communication systems, the microstrip structure filter is no longer applicable due to the disadvantages of large radiation loss, insertion loss, and serious dispersion effect. Due to the complexity of the structure of the coaxial filter, higher requirements are placed on the processing technology and cost. Filters with a rectangular waveguide structure ar...

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): H01P1/208
Inventor 张安学舒敏杰陈建忠杨倩张洋洋张巧
Owner 广东昌宝科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap