Broadband high-gain circularly polarized microstrip antenna

A microstrip antenna and high-gain technology, which is applied to antenna grounding devices, antenna arrays that are powered independently, and antenna grounding switch structural connections, etc., can solve the problem of increasing antenna feed loss, increasing processing complexity, and increasing antenna size, etc. problem, to achieve the effect of wide axial ratio bandwidth, reduce lateral leakage, and reduce feed loss

Inactive Publication Date: 2019-05-03
BEIJING RES INST OF TELEMETRY +1
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common broadband circularly polarized microstrip antennas generally use double-layer (or multi-layer) multi-feed point excitation. The double-layer (or multi-layer) microstrip structure reduces the isolation of th

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 high-gain circularly polarized microstrip antenna
  • Broadband high-gain circularly polarized microstrip antenna
  • Broadband high-gain circularly polarized microstrip antenna

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] The present invention will be further described below in conjunction with the drawings.

[0028] figure 1 Shown is a schematic diagram of the layered structure of the antenna of the present invention. It can be seen from the figure that the broadband high-gain circularly polarized microstrip antenna proposed by the present invention includes: floor 1, feed coaxial 2, bottom dielectric substrate 3, cut corners U-shaped groove microstrip 4, top dielectric substrate 5, substrate integrated waveguide square cavity 6, microstrip radiation unit 7; the microstrip antenna of the present invention can be processed by a common double-layer microstrip printed board process, or LTCC Process realization.

[0029] Among them, the structural floor (1) is located at the bottom of the antenna and is made of metal. The bottom dielectric substrate 3 is located on the upper layer of the floor 1 and is in close contact. The top dielectric substrate 5 is located on the upper layer of the bottom d...

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

A broadband high-gain circularly polarized microstrip antenna comprises a floor, a feed coaxial, a bottom dielectric substrate, a chamfered U-shaped slot microstrip, a top dielectric substrate, a substrate integrated waveguide square cavity, and a 2*2 microstrip radiation unit. The substrate integrated waveguide square cavity is composed of a bottom square microstrip line, a metal cylinder array,a top square microstrip line, and a part of the top dielectric substrate surrounded by the metal cylinder array. The respective parts of the antenna are stacked in order from bottom to top. The antenna can be achieved by a common double-layer microstrip printed board process or by an LTCC process. The method uses a form that a single-point feeding lower microstrip excites the upper 2*2 microstripradiation unit through the substrate integrated waveguide square cavity, increases the gain while realizing a wide frequency band, thereby avoiding the use of a complicated feed network. The circularpolarization of the antenna is achieved by means of chamfering on two rectangular microstrips. The antenna can be used as a single antenna or as a wide-angle scanning array antenna element.

Description

technical field [0001] The invention belongs to the technical field of microstrip antennas, in particular to a wide-band, high-gain, circularly polarized microstrip antenna. Background technique [0002] Microstrip antenna has the advantages of low profile, low cost, light weight, simple structure, easy conformality, and easy integration, and is a common antenna form in electronic systems. Circularly polarized microstrip antennas have strong anti-rain and fog interference and anti-multipath reflection capabilities, so they are widely used in communication, radar and navigation systems. [0003] With the development of technologies such as broadband communication and high-resolution imaging, various communication and imaging systems have more and more demands for low-cost, wide-band, circularly polarized, high-gain antennas suitable for wide-angle scanning. Common broadband circularly polarized microstrip antennas generally use double-layer (or multi-layer) multi-feed point ...

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): H01Q1/38H01Q1/48H01Q1/50H01Q21/06
Inventor 谷胜明刘昊
Owner BEIJING RES INST OF TELEMETRY
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