Broadband circularly-polarized antenna

A circularly polarized antenna and broadband technology, applied in the field of satellite communications, can solve the problems of narrow impedance bandwidth and axial ratio bandwidth of microstrip circularly polarized antennas, and achieve the effect of widening impedance bandwidth and axial ratio bandwidth, and good broadband characteristics

Inactive Publication Date: 2019-07-09
X TRIP INFORMATION TECH CO LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a broadband circularly polarized antenna, aiming to solve the technical pr

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
  • Broadband circularly-polarized antenna
  • Broadband circularly-polarized antenna
  • Broadband circularly-polarized antenna

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] In order to further illustrate the technical means and effects of the present invention to achieve the above objectives, the specific implementation, structure, features and effects of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0022] figure 1 It is a schematic structural diagram of a preferred embodiment of a broadband circularly polarized antenna of the present invention. figure 2 Is a side view of the broadband circularly polarized antenna of the present invention; image 3 It is a schematic diagram of the lower surface of the upper dielectric plate of the broadband circularly polarized antenna of the present invention; Figure 4 It is a schematic diagram of the upper surface of the upper dielectric plate of the broadband circular...

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
Lengthaaaaaaaaaa
Inner ring diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a broadband circularly-polarized antenna. The antenna comprises an upper-layer dielectric plate and a lower-layer dielectric plate, wherein the upper-layer dielectric plate andthe lower-layer dielectric plate are connected through four metal columns, the lower surface of the upper-layer dielectric plate comprises four strip feeders, and the upper surface of the upper-layerdielectric plate comprises an annular patch; and a feed port is arranged at one end of each strip feeder, the four feed ports feed the four strip feeders through the four metal columns respectively,the four strip feeders couple electromagnetic wave energy to the annular patch, and the annular patch radiates the electromagnetic wave energy. According to the broadband circularly-polarized antenna,coupling feeding is performed on the annular patch of the antenna through the four strip feeders, impedance bandwidth and axial ratio bandwidth of the circularly-polarized antenna are increased, andthe circularly-polarized antenna has good broadband characteristics and circular polarization characteristics.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a broadband circularly polarized antenna. Background technique [0002] Circularly polarized antennas can resist the effects of multipath fading and reduce the loss of the ionosphere, and there is no requirement for the placement of the receiving antenna and the transmitting antenna. Therefore, broadband circularly polarized antennas are very suitable for use in mobile communications. However, the impedance bandwidth and axial ratio bandwidth of the microstrip circularly polarized antenna are very narrow, which prevents it from being widely used in mobile communications. Contents of the invention [0003] The main purpose of the present invention is to provide a broadband circularly polarized antenna, aiming to solve the technical problem of narrow impedance bandwidth and axial ratio bandwidth of the existing microstrip circularly polarized antenna. [0004] I...

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): H01Q1/50H01Q1/36
CPCH01Q1/36H01Q1/50
Inventor 曲美君邓力李书芳张贯京葛新科张红治
Owner X TRIP INFORMATION TECH CO LTD
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