Wideband wide beam circularly polarized dielectric resonant antenna and design method thereof

A dielectric resonant antenna, circular polarization technology, applied in the field of antennas, can solve the problems of narrow circular polarization bandwidth, high complexity, unfavorable miniaturization, etc., and achieve the effects of small size, easy integration and simple structure

Inactive Publication Date: 2018-03-23
SUN YAT SEN UNIV
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-feed method can provide greater bandwidth, but generally requires additional circuits such as power splitters and couplers, which is complex and not conducive to miniaturization
The structure of the single-feed method is simple, but the circular polarizatio

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
  • Wideband wide beam circularly polarized dielectric resonant antenna and design method thereof
  • Wideband wide beam circularly polarized dielectric resonant antenna and design method thereof
  • Wideband wide beam circularly polarized dielectric resonant antenna and design method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-4 As shown, a wide bandwidth beam circularly polarized dielectric resonant antenna includes a cylindrical microwave dielectric radiation unit, a double-layer circuit substrate and a microstrip circuit, a feed coaxial and a choke sleeve; the cylindrical microwave dielectric radiation unit is set On the upper circuit substrate of the double-layer circuit substrate; the double-layer circuit substrate includes upper, middle and lower layers, the upper layer is a copper-clad floor with cross gaps, the middle layer is a rectangular microstrip, and the lower layer is a circular patch, The upper layer and the lower layer are connected through metal vias; the choke sleeve is connected to the circular patch on the lower layer, and the feed coaxial is passed through the choke sleeve and connected to the rectangular microstrip through the metal via hole.

[0036] The dielectric constant of the cylindrical microwave dielectric radiation unit is ε r1 , whose radius...

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
Thicknessaaaaaaaaaa
Login to view more

Abstract

The present invention provides a wideband wide beam circularly polarized dielectric resonant antenna and a design method thereof. The antenna comprises a cylindrical microwave dielectric radiation unit, a dual-layer circuit substrate, a microstrip circuit, a coaxial feed and a choke sleeve. The cylindrical microwave dielectric radiation unit is arranged on the upper-layer circuit substrate of thedual-layer circuit substrate, and the dual-layer circuit substrate comprises an upper layer, an intermediate layer and a lower layer. The upper layer is a copper clad floor with an intersected gap, the intermediate layer is a rectangular microstrip, and the lower layer is a circular patch. The upper layer and the lower layer are connected via a metal via hole, the choke sleeve is connected with the lower-layer circular patch, and the coaxial feed penetrates the choke sleeve and is connected with the rectangular microstrip via the metal via hole. The antenna enables the bandwidth and the beam width to be increased, at the same time, has a lower structure complexity.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a wide-bandwidth beam circularly polarized dielectric resonant antenna and a design method thereof. Background technique [0002] With the development of modern wireless communication systems, circularly polarized antennas have received more and more attention. Circularly polarized radiation can be used to reduce rain and fog interference and anti-multipath reflection, and requires high flexibility in the positioning of both receiving parties. It is becoming more and more attractive in many wireless communication applications. In addition, a wide 3-dB axial ratio beamwidth is also an important design requirement. In the global navigation and positioning system, the circularly polarized antenna used generally requires a 3-dB axial ratio beamwidth greater than 120° to ensure that wireless signals can be received anywhere on the earth. [0003] Existing methods to achieve wide aspect ratio...

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): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 郑少勇赵超凡向炳洁夏明华
Owner SUN YAT SEN 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