Left-handed circularly polarized antenna

A left-handed circular polarization and antenna technology, which is applied to the connection of the antenna, the antenna grounding switch structure, and the device that enables the antenna to work in different bands at the same time, can solve the problems affecting soil moisture, the detection sensitivity of moving targets, etc., and achieves high gain, The effect of low VSWR and wide working bandwidth

Inactive Publication Date: 2016-10-12
北京航大泰科信息技术有限公司
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the link of the antenna, there is not yet mature equipment to provide, which affects the detection sensitivity of sea surface wind measurement, altimetry, sea ice detection, soil moisture, and moving targets.

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
  • Left-handed circularly polarized antenna
  • Left-handed circularly polarized antenna
  • Left-handed circularly polarized antenna

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0057] The overall dimensions of the parasitic patch 2 are larger than the resonant patch 5 .

no. 2 example

[0059] Such as Figure 4 As shown, the width of the second microstrip line 62 is narrower than that of the first microstrip line 61, and the third microstrip line 63 is composed of two parts with different widths, the wide part is connected with the first microstrip line 61, and the width is the same as that of the second microstrip line. The width of the microstrip line 62 is the same, the width of the fourth microstrip line 64 is the same as the width of the narrow part of the third microstrip line 63, the width of the fifth microstrip line 65 is the same as the width of the second microstrip line 62, The sixth microstrip line 66 is made up of two parts with different widths and is L-shaped. The length of the narrow part is greater than that of the wide part. The width of the wide part is the same as that of the second microstrip line 62. The narrow part of the three microstrip lines 63 is the same, the wide part is connected to the fourth microstrip line 64 , and the width ...

no. 3 example

[0061] A low noise amplifier is provided on the upper surface of the lower microstrip board 4 , and the low noise amplifier is located outside the outer straight line of the seventh microstrip line 67 and connected to the outer straight line.

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 left-handed circularly polarized antenna, which comprises an upper layer microstrip plate and a lower layer microstrip plate; The corners of the square corner-cut patches are distributed symmetrically around the center of the upper dielectric, and the corners of each parasitic patch are rotated 90 degrees in sequence along the left-handed polarization direction; the lower microstrip board is a double-layer board, and the lower dielectric There are feed network and four resonant patches on the upper surface, the four resonant patches are square corner-cut patches with diagonally cut corners, and the center of the lower medium is symmetrically distributed, and the four resonant patches are located in the corresponding Directly below the parasitic patch, 4 sets of patch units are formed with each corresponding parasitic patch. The feeding network adopts the serial continuous rotation feeding method, and feeds the four resonant patches according to the feeding sequence of 0°, ‑90°, ‑180°, and ‑270°.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a left-handed circularly polarized antenna. Background technique [0002] The Global Navigation Satellite System (GNSS) is a satellite-based radio navigation system that uses satellites as navigation platforms. It can provide all-weather, 24-hour continuous high-precision three-dimensional positions for various carriers on land, sea, air and space around the world. , speed and precise time information have been widely used in various fields. GNSS-R technology is a new branch of GNSS, and it is one of the research hotspots in the field of remote sensing detection and navigation technology at home and abroad. While receiving satellite navigation signals, this technology also receives the reflection signal after the signal passes through the reflection surface. Through the accurate estimation and reception processing of the reflection signal, the estimation and inver...

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): H01Q1/38H01Q1/50H01Q5/10H01Q5/385H01Q15/24
CPCH01Q1/38H01Q1/50H01Q5/10H01Q5/385H01Q15/24
Inventor 王国涛
Owner 北京航大泰科信息技术有限公司
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