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

Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna

A half-mode substrate integration, logarithmic period technology, applied in logarithmic period antennas, antennas, non-resonant long antennas, etc., can solve the problems of difficult to use coaxial line feed, large volume, etc., to achieve low cost, high antenna The effect of simple design and low loss characteristics

Active Publication Date: 2010-02-10
SOUTHEAST UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spatial logarithmic periodic array antennas are widely used in broadband communication systems. Due to their large size, they have gradually developed into printed logarithmic periodic array antennas. However, it is difficult for millimeter-wave printed logarithmic periodic array antennas to be fed by coaxial lines.

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
  • Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna
  • Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna
  • Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 Half-mode substrate integrated waveguide fed logarithmic periodic dipole array antenna

[0026] The antenna structure is shown in Figure 4, and the dimensions are listed in Table I. Figure 5 is the measured antenna reflection coefficient, Figure 6-Figure 9 Indicates the pattern of the antenna at 20GHz, 30GHz, 35GHz, and 40GHz, where Ex represents the main polarization pattern of the E plane; Hx represents the main polarization pattern of the H plane; ECo represents the cross polarization pattern of the E plane; Hco represents the H plane Cross-polarization pattern.

[0027] Table I represents the dimensions of Example 1.

[0028] Table I

[0029] Antenna Geometry

[0030]

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 a seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna comprising a medium substrate (1), an upper surface metal coating (2), a lower surface metal coating (3) and a metallized through hole (4). An assembly line (5) on the upper surface of a log periodic dipole array antenna on the upper surface metal coating (2), an upper surface feed source array antenna (7) of the log periodic dipole array antenna, the upper surface (9) of a seminorm substrate integrated waveguide, a micro-strip gradual change transition line (6) and an output50-ohm micro-stripe line (8) are connected in sequence; the lower surface metal coating (3) comprises an assembly line (11) of the lower surface of the log periodic dipole array antenna, which is parallel symmetrical with the assembly line (5) on the upper surface of a log periodic dipole array antenna, a lower surface feed source array antenna (12) of the log periodic dipole array antenna, whichis crossly symmetrical with the upper surface feed source array antenna (7) of the log periodic dipole array antenna, a lower surface (13) of the seminorm substrate integrated waveguide and a ground surface (14) of the micro-stripe line.

Description

technical field [0001] The invention is a broadband logarithmic periodic dipole array antenna design technology based on a novel half-mode substrate integrated waveguide feeding structure. The designed antenna includes logarithmic periodic dipole array antenna and half-mode substrate integrated waveguide structure. By cascading the half-mode substrate integrated waveguide and the logarithmic periodic dipole array antenna, a broadband antenna with simple feeding structure, wide working bandwidth and low loss is formed. The antenna design is based on planar printed circuit technology, which is small in size and suitable for planar high integration. Background technique [0002] With the rapid development of communication technology, broadband communication systems with many advantages such as low complexity, low cost, and wide operating bandwidth have been extensively researched and applied. Spatial log-periodic array antennas are widely used in broadband communication syste...

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): H01Q11/10H01Q13/08
Inventor 翟国华洪伟蒯振起
Owner SOUTHEAST UNIV
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