Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

#-shaped patch dual-port feed high-isolation planar antenna

A dual-port, feeding technology, applied in the field of MIMO antennas, can solve the problems of no polarization diversity characteristics, low isolation of antenna elements, unfavorable device miniaturization, etc., and achieve the effect of low antenna profile, good device quality and easy processing

Inactive Publication Date: 2016-06-15
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above antennas all have the disadvantage of large antenna volume, which is not conducive to the current demand for device miniaturization. In addition, the isolation of the antenna unit is relatively low, the interference is large, and there is no polarization diversity feature.

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
  • #-shaped patch dual-port feed high-isolation planar antenna
  • #-shaped patch dual-port feed high-isolation planar antenna
  • #-shaped patch dual-port feed high-isolation planar antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] The MIMO antenna designed in the present invention is composed of four parts: antenna unit No. 1, antenna unit No. 2, dielectric substrate 3, and ground plate 4, as shown in FIG. 1 , and specific size parameters are shown in Table 1.

[0016] Table 1. The structural parameters shown in the accompanying drawings are as follows (unit: mm).

[0017]

[0018] The letters in the table represent the geometric dimension parameters in the figure, which are marked in Figure 1.

[0019] L feed is the length of the coupling part of the T-shaped feed coupling line of antenna unit 1 and antenna unit 2, W feed is the width of the coupling part of the T-shaped feed coupling line of antenna unit 1 and antenna unit 2, L port is the length of the feeding part of the T-shaped feeding coupling line port of antenna unit 1 and antenna unit 2, W port is the widt...

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 provides a #-shaped patch dual-port feed high-isolation planar antenna, and relates to the field of an antenna for a passive device. The MIMO (multiple-input multiple-out) antenna comprises an antenna unit, a dielectric substrate and an earth plate, wherein the radiation patches in the antenna unit are #-shaped; the antenna unit has mutually-perpendicular T-shaped feed coupling line ports; due to the sharing characteristics of the radiation patches, the antenna dimension can be greatly decreased, so that the occupied space can be tremendously decreased; meanwhile, by adoption of a microstrip line, the section of the antenna is relatively low, so that the antenna is easy to process; according to the antenna provided by the invention, the isolation of the antenna can be greatly improved; the antenna has stable polarization diversity characteristics; mature production technology for the dielectric substrate, relatively good device quality, high stability, high mechanical strength, and convenience in processing and cleaning; and therefore, the planar antenna is suitable for batch production and has relatively high actual application value.

Description

technical field [0001] The invention relates to the field of antennas in passive devices, especially MIMO antennas. Background technique [0002] With the continuous development of wireless communication technology, limited wireless resources are facing the dilemma of communication data explosion, and traditional technology can no longer meet the requirements of data transmission rate and quality. Multiple-Input Multiple-Output MIMO (Multiple-Input Multiple-Output MIMO) technology can double the capacity and spectrum utilization of the communication system without increasing the bandwidth. And has been listed as one of the core technologies of LTE (LongTermEvolution). [0003] Scholars at home and abroad have done a lot of research on MIMO antennas. For example: Y.Gao et al. designed a two-unit MIMO antenna system with a very small floor that operates at a center frequency of 5.2 GHz and is applied to WLAN. The coupling degree between antennas is reduced to below -28dB; Sh...

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): H01Q1/38H01Q1/50H01Q1/52
CPCH01Q1/38H01Q1/50H01Q1/52
Inventor 李海雄魏彤欣丁君郭陈江
Owner NORTHWESTERN POLYTECHNICAL UNIV
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
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