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Wide wave beam circular polarization micro-strip antenna

A microstrip antenna, circular polarization technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., to achieve the effect of simple method, easy processing, and guaranteeing symmetry

Inactive Publication Date: 2014-05-07
ZHENJIANG ZHONGAN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not difficult to see from the pattern of the wide-beam antenna that the beam width of the antenna is different at different azimuth angles, and the beam width at some azimuth angles is narrow; it is not difficult to see from the axial ratio diagram of the wide-beam antenna that different azimuth angles The axis ratio of the upper antenna is different, and the axis ratio at low elevation angles is poor in some azimuths

Method used

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  • Wide wave beam circular polarization micro-strip antenna
  • Wide wave beam circular polarization micro-strip antenna
  • Wide wave beam circular polarization micro-strip antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as Figure 6-8 As shown, the wide-beam circularly polarized microstrip antenna of the present invention is sequentially composed of a 3dB bridge, a microstrip antenna and an insulating cylinder with a metal patch from bottom to top. The microstrip antenna is composed of an antenna metal floor 5 , an antenna insulating plate 4 and an antenna metal patch 3 . The antenna metal floor 5 and the antenna metal patch 3 are square, and the cross section of the antenna insulating plate 4 is circular. The diameter of the antenna insulating plate 4 is much larger than the side length of the metal floor 5 for widening the beam width of the antenna, and the side length of the antenna metal patch 3 is smaller than the side length of the antenna metal floor 5 . With a certain height, an insulating tube 2 with a square ring cross section is placed on the insulating plate 4 of the microstrip antenna. The inner diameter of the insulating tube 2 is larger than the side length of the ...

Embodiment 2

[0054] Such as Figure 10 As shown, in this embodiment, the cross section of the insulating cylinder 2 and the metal patch 1 on its upper surface is a square ring, and the basic shapes of the antenna insulating plate 4, the antenna metal floor 5 and the antenna metal patch 3 are all square. The outer lengths of the insulating cylinder 2, the antenna insulating plate 4 and the antenna metal floor 5 are the same, both being 0.377λ. The width of the metal patch 1 is 0.027λ, and the outer length is 0.296λ. The thickness of the insulating cylinder 2 is 0.08λ, and the height is 0.161λ. The distance between the inner edge of the insulating cylinder 2 and the outer edge of the antenna metal patch 3 in the horizontal direction is 0.0183λ, and the distance from the inner edge of the metal patch 1 is 0.0134λ. Both the antenna insulation plate 4 and the insulation cylinder 2 are made of high-frequency dielectric materials with a dielectric constant of 6.15. The antenna has a beamwidth ...

Embodiment 3

[0057] Such as Figure 10 As shown, in this embodiment, the cross section of the insulating cylinder 2 and the metal patch 1 on its upper surface is a square ring, and the basic shapes of the antenna insulating plate 4, the antenna metal floor 5 and the antenna metal patch 3 are all square. The outer lengths of the insulating cylinder 2, the antenna insulating plate 4 and the antenna metal floor 5 are the same, both being 0.366λ. The width of the metal patch 1 is 0.0261λ, and the outer length is 0.293λ. The thickness of the insulating cylinder 2 is 0.0758λ, and the height is 0.157λ. The distance between the inner edge of the insulating cylinder 2 and the inner edge of the metal patch 1 in the horizontal direction is 0.0131λ, and the distance from the outer edge of the antenna metal patch 3 is 0.0157λ. Both the antenna insulation plate 4 and the insulation cylinder 2 are made of high-frequency dielectric materials with a dielectric constant of 6.15. The microstrip antenna us...

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Abstract

The invention discloses a wide wave beam circular polarization micro-strip antenna, and belongs to the field of micro-strip antennas. The wide wave beam circular polarization micro-strip antenna comprises a micro-strip antenna body and an insulation drum (2). The wall of the insulation drum (2) is solid, and the micro-strip antenna body is arranged at the bottom of the insulation drum (2). The center of the insulation drum (2) and the center of the micro-strip antenna body are located on the same vertical line. The wide wave beam circular polarization micro-strip antenna has the advantages of being wide in wave beam, good in circular polarization performance, symmetric in directional diagram, simple in structure, easy to process, and suitable for being applied to the fields of satellite navigation and communication.

Description

technical field [0001] The invention belongs to the field of antennas, in particular to the field of microstrip antennas (microstrip antennas), in particular to wide-beam circularly polarized microstrip antennas. Background technique [0002] As a device that converts electromagnetic waves between wave guides and free space, antennas are widely used in communication transmission, radar detection, precision guidance and other fields. The microstrip antenna was first proposed by Deschamps in 1953. Usually on a thin dielectric substrate, a thin metal layer is attached on one side as a ground plane. Or a coaxial probe feeds the patch. It is characterized by small size, light weight, low profile and easy conformity with the carrier. [0003] By specially designing the feeding method or patch shape of the microstrip antenna, it can have circularly polarized radiation characteristics. At present, the commonly used microstrip antenna circular polarization technologies include: du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/08H01Q1/50H01Q19/00H01Q15/24H01Q1/38H01Q1/48
Inventor 谈田爽夏雨龙朱旗
Owner ZHENJIANG ZHONGAN COMM TECH
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