Millimetre wave planar antenna and array thereof

A planar antenna, millimeter-wave technology, applied in antenna arrays, antennas, antenna grounding devices, etc., can solve the problems of large size, complex processing, and difficult integration of millimeter-wave antennas, achieve uniform radiation pattern, and improve antenna gain. , the effect of optimizing the overall performance

Inactive Publication Date: 2011-03-02
ZHEJIANG UNIV
View PDF4 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the millimeter-wave antenna developed by this method is that it is very bulky, and at the same time, the processing process is complicated and it is not easy to integrate.
Millimeter-wa

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
  • Millimetre wave planar antenna and array thereof
  • Millimetre wave planar antenna and array thereof
  • Millimetre wave planar antenna and array thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Such as figure 1 with figure 2 As shown, the millimeter wave planar antenna of the present invention includes a metal patch 2, a dielectric substrate 1, a metal floor 5, and a ground post 4. The metal patch 2 is pasted or placed on the upper surface of the dielectric substrate 1, and the lower surface of the dielectric substrate 1 is connected to The upper surface of the metal floor 5 is fixed. In the present invention, the metal patch 2 is provided with more than one pair of identical first strip grooves. While in figure 1 In the illustrated embodiment, there are two pairs of identical first strip grooves, wherein the first strip groove 31 and the first strip groove 31' are a pair, and the other pair is the first strip groove 32 and the first strip groove 31'. The first groove is 32'. The first strip groove 31 and the first strip groove 31' are symmetrically distributed with the straight line kk' as the symmetrical center line, forming a first pair of first strip groo...

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 discloses a millimetre wave planar antenna and an array thereof, wherein the millimetre wave planar antenna includes a metal patch, a medium substrate, a metal floor board and ground poles, the metal patch is placed on an upper surface of the medium substrate, and a lower surface of the medium substrate is fixed with an upper surface of the metal floor board; the metal patch is parallel to the upper surface of the metal floor board; the metal patch is provided with at least one pair of same first bar-shaped channels, each pair of first bar-shaped channels are distributed in bilateral symmetry form, symmetrical centre lines of each pair of bar-shaped channels are superposed, a centre line in a length direction of each first bar-shaped channel is parallel to each other, and length of each first bar-shaped channel is 1/2 of an operating wavelength; the ground poles vertically penetrate through the medium substrate, the ground poles are circularly distributed at intervals at the periphery of a region where the first bar-shaped channels are distributed, and two ends of each ground pole are respectively contacted with the metal patch and the metal floor board. The invention can reduce loss of a millimetre wave antenna, improve radiation efficiency of the millimetre wave antenna, simultaneously, guarantee work bandwidth of the antenna, and improve antenna gain.

Description

technical field [0001] The invention relates to a planar antenna and a planar antenna array working in the millimeter wave band. Background technique [0002] Planar antennas, such as microstrip patch antennas and planar slot antennas, are widely used in various modern communication systems due to their light weight, low manufacturing cost, easy integration, and convenient mass production. However, traditional planar antennas have various defects in the millimeter wave band, such as easy excitation of surface waves, uneven pattern, narrow frequency band, and low antenna radiation efficiency. The excitation of surface waves makes planar antennas have defects such as deterioration of pattern, decrease of gain, narrowing of bandwidth, increase of loss and decrease of antenna radiation efficiency. Dielectric loss, conductor loss, and surface wave loss are the main reasons for the low radiation efficiency of planar antennas. For planar antennas with low operating frequency and ...

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): H01Q1/38H01Q1/48H01Q21/00
Inventor 吴锡东李韵
Owner ZHEJIANG 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
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