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Broadband circularly polarized antenna array based on asymmetric slotted rectangular patch

A technology of circularly polarized antennas and rectangular patches, which is applied in the field of 5G mobile communications and satellite communications, and antennas, can solve the problems of low bandwidth of millimeter-wave patch circularly polarized antenna arrays, and achieve easy processing, simple design structure, and low cost. cheap effect

Pending Publication Date: 2022-04-12
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing technology still needs to be improved for the problem of the low bandwidth of the millimeter-wave patch circularly polarized antenna array.

Method used

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  • Broadband circularly polarized antenna array based on asymmetric slotted rectangular patch
  • Broadband circularly polarized antenna array based on asymmetric slotted rectangular patch
  • Broadband circularly polarized antenna array based on asymmetric slotted rectangular patch

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Embodiment Construction

[0050]Below in conjunction with specific embodiment, the present invention will be further clarified. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various equivalents of the present invention Modifications in form all fall within the scope defined by the appended claims of this application.

[0051] figure 1 It is a schematic diagram of the three-dimensional layered structure of the antenna array. A wide-band circularly polarized antenna array based on an asymmetric slotted rectangular patch disclosed in the present invention is arranged sequentially from top to bottom. The top metal layer, the first dielectric layer 4, the first Adhesive layer 5, second metal layer 2, second dielectric layer 6 and third metal layer. The top metal layer is provided with a circularly polarized antenna...

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Abstract

The invention discloses a broadband circularly polarized antenna array based on an asymmetric slotted rectangular patch. The antenna array comprises a top metal layer, a first dielectric layer, a first bonding layer, a second metal layer, a second dielectric layer and a third metal layer which are sequentially arranged from top to bottom. The first metal layer is provided with a circularly polarized antenna array, the circularly polarized antenna array comprises antenna units which are periodically arranged, each antenna unit comprises a pair of centrosymmetric asymmetric slotted rectangular patches, and the asymmetric slotted rectangular patches are two rectangular grooves which are unequal in length and are formed in one side of a rectangular patch; each antenna unit is in electric contact with the second metal layer through two pairs of metal columns. And the bottom feed network feeds the circularly polarized antenna array through the coupling gap and the metal column. The circularly polarized antenna array provided by the invention obtains 39.6% of impedance bandwidth and 50.7% of axial ratio bandwidth, and can be directly integrated with a millimeter wave radio frequency front-end circuit.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a circularly polarized antenna array using an asymmetrically slotted rectangular patch, which can be applied to the fields of 5G mobile communication and satellite communication. Background technique [0002] With the increasing maturity of 5G, international standardization organizations including 3GPP and ITU have also begun to study the integration of satellites and 5G. 3GPP R17 also set up a special project NTN (non-terrestrial transmission network) to study satellite communication under the evolution of 5G protocol. In the 3GPP research project titled "5G New Air Interface for 'Non-Terrestrial Networks'", the deployment scenarios of non-terrestrial networks (NTN: Non-Terrestrial Networks) including satellite networks are defined. Satellite communication will be part of the integrated communication of air, space, ground and sea, enabling operators to provide 5G c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q13/08H01Q21/06
Inventor 范奎奎李英明谭青权罗国清
Owner HANGZHOU DIANZI UNIV
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