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

Hybrid-feeding slot array antenna

A technology of slot array antenna and coupling feeding, which is applied in the direction of separately powered antenna array, antenna, antenna array, etc., can solve the problem of high processing cost, low utilization rate of substrate-integrated waveguide antenna, and difficult-to-multilayer substrate-integrated waveguide Structure and other issues, to achieve the effect of high processing precision, low cost, high antenna gain

Inactive Publication Date: 2018-10-09
CNGC INST NO 206 OF CHINA ARMS IND GRP
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional waveguide slot array antennas are widely used in the field of microwave and millimeter waves, but they are generally multi-layer waveguide structures, which require CNC high-speed milling machines to be machined, and then welded by vacuum welding or diffusion welding. Generally, the processing cost is relatively high
Substrate integrated waveguide (SIW) technology is a new waveguide structure proposed in recent years that can be integrated in a dielectric substrate with low radiation and high power capacity. Its propagation characteristics are similar to rectangular metal waveguides. Due to The whole structure is completely composed of metallized through-hole arrays on the dielectric substrate, so this structure can be accurately realized by PCB technology, with light weight and low processing cost, but the substrate integrated waveguide (SIW) is difficult to make multiple The layer structure, the feed network and the antenna radiation front are on the same layer, which makes the surface utilization of the substrate integrated waveguide antenna not high.

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
  • Hybrid-feeding slot array antenna
  • Hybrid-feeding slot array antenna
  • Hybrid-feeding slot array antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] The hybrid feeding slot array antenna of the present invention works in the Ka band, mainly including 40 substrate integrated waveguides, 220 radiation slots, 40 coupling feeding slots, power division and difference network, antenna and beam port, antenna difference beam port.

[0032] refer to figure 1 and figure 2 , the radiation front is a double-sided copper-clad printed board, using a substrate-integrated waveguide structure, a dielectric substrate 1, a metal layer 2 on the front side of the dielectric substrate, a metal layer 3 on the back side of the dielectric substrate, and a metallized through-hole array 4 penetrating the dielectric substrate. Multiple substrate integrated waveguides. The dielectric board is Rogers 5880, with a relative dielectric constant of 2.2 and a thickness of 0.787mm. The thickness of the upper and lower metal layers is 0.035mm. The diameter of the metallized through hole is 0.5mm, and the distance between adjacent through holes is 1m...

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 and discloses a hybrid-feeding slot array antenna. A substrate integrated waveguide and a traditional rectangular metal waveguide hybrid feeding mode are employed, a radiationarray is a substrate integrated waveguide slot array, a power division and differential network is of a waveguide single-layer planar structure and is arranged below the radiation array, a feeding port is arranged in a back surface of the antenna, and antenna aperture is not occupied. The antenna has the advantages of high aperture utilization ratio, high grain, relatively wide bandwidth, low profile and the like.

Description

technical field [0001] The invention belongs to the field of radar antennas, and relates to a slot array antenna, which adopts a substrate integrated waveguide and traditional rectangular metal waveguide hybrid feeding technology. Background technique [0002] Traditional waveguide slot array antennas are widely used in the microwave and millimeter wave fields, but they are generally multi-layer waveguide structures, which require CNC high-speed milling machines to be machined, and then welded by vacuum welding or diffusion welding. Generally, the processing cost is relatively high. Substrate integrated waveguide (SIW) technology is a new waveguide structure proposed in recent years that can be integrated in a dielectric substrate with low radiation and high power capacity. Its propagation characteristics are similar to rectangular metal waveguides. Due to The whole structure is completely composed of metallized through-hole arrays on the dielectric substrate, so this struct...

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): H01Q1/38H01Q1/50H01Q21/00H01Q21/06
Inventor 郑慕昭赵迎超杨亚兵
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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