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A graphene-based flexible broadband monopole wearable antenna

A broadband monopole and graphene technology, which is applied in directions such as antennas, antennas, and antenna components suitable for movable objects, can solve the problems of inconvenience for soldiers to cross, not meeting the needs of comfort, and reducing antenna performance. To achieve good bending resistance and chemical stability, to meet the comfort of clothing, to extend the effect of the current path

Active Publication Date: 2022-07-01
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Monopole antennas are simple in structure and easy to achieve broadband, but this type of antenna has a greater impact on the human body (higher SAR value), and is usually large in size and inconvenient to install
The microstrip patch antenna can realize the isolation between the human body and the antenna, but its own bandwidth is narrow, and the performance of the antenna will decrease as the shape changes
Moreover, the flexibility of the patch antenna is poor, which does not meet the needs of the human body for comfort.
In addition, most of the wearable antennas are piggyback antennas, which are large in size after being stretched out. It is extremely inconvenient for soldiers to travel through combat environments such as jungles, and it is difficult to adapt to various tactical actions of combatants, and their concealment is poor.

Method used

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  • A graphene-based flexible broadband monopole wearable antenna
  • A graphene-based flexible broadband monopole wearable antenna
  • A graphene-based flexible broadband monopole wearable antenna

Examples

Experimental program
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Embodiment 1

[0036] Please refer to figure 1 and figure 2 , figure 1 It is a schematic structural diagram of a graphene-based flexible broadband monopole wearable antenna provided by an embodiment of the present invention; figure 2 It is a schematic structural diagram of a radiation unit provided by an embodiment of the present invention. As shown in the figure, the graphene-based flexible broadband monopole wearable antenna includes: a flexible dielectric substrate 1 , a common ground structure 2 and a radiation unit 3 disposed on the flexible dielectric substrate 1 . The common ground structure 2 is located above the radiation unit 3, and the common ground structure 2 is connected to the radiation unit 3 through a feeding network. The common ground structure 2 is used to widen the working bandwidth of the wearable antenna. The radiating element 3 is in the form of a planar monopole to achieve a wider impedance bandwidth.

[0037] Further, the radiation unit 3 includes a feeding con...

Embodiment 2

[0058] In this embodiment, the graphene-based flexible broadband monopole wearable antenna in Embodiment 1 is simulated in conjunction with the human body to evaluate the influence of the human body on the performance of the antenna.

[0059] Specifically, the common ground structure 2 and the radiation unit 3 use a graphene conductive film with a bulk conductivity of 1,100,000 S / m and a thickness of 25 μm.

[0060] Please refer to image 3 and Figure 4 , image 3 is a schematic structural diagram of a common ground structure provided by an embodiment of the present invention; Figure 4 It is a schematic structural diagram of a flexible dielectric substrate provided by an embodiment of the present invention. The structural parameters of the graphene-based flexible broadband monopole wearable antenna of this embodiment are described as follows:

[0061] The flexible dielectric substrate 1 adopts the dielectric constant ε e = 2.7 polyester resin material. The length l and...

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Abstract

The invention relates to a graphene-based flexible broadband monopole wearable antenna, comprising: a flexible dielectric substrate, a common ground structure and a radiation unit arranged on the flexible dielectric substrate, wherein the common ground structure is located above the radiation unit, The electrical network is connected with the radiation unit, and the common ground structure is used to widen the working bandwidth of the wearable antenna; the radiation unit is in the form of a plane monopole, including the feeding conductive strips connected in sequence, the first transition connection part, the rectangular slot antenna part, the second Transition connection part and U-slot antenna part. The graphene-based flexible broadband monopole wearable antenna of the present invention bends the radiation patch part in the form of a monopole antenna, and forms a rectangular slot and a U-shaped slot for the antenna, which prolongs the current path and increases the antenna power. length, so as to realize the broadband and miniaturization characteristics of the antenna. The common ground structure broadens the working bandwidth of the wearable antenna, thereby broadening the application prospect of the wearable antenna.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a graphene-based flexible broadband monopole wearable antenna. Background technique [0002] With the vigorous development of wireless communication technology and the rise of wearable electronic devices, human-centered wireless communication systems have become one of the research hotspots today. As an important part of modern mobile communication, human body wireless communication system plays an important role in the fields of medical assistance, health monitoring, entertainment and leisure, and fire rescue. As an indispensable radio device for transmitting and receiving electromagnetic waves, the antenna is an important part of the wireless communication system. The performance of the antenna will directly affect the quality of the communication system. In order to meet the quality and comfort requirements of human communication, it is particularly important to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/36H01Q1/50H01Q1/48H01Q1/27
CPCH01Q1/38H01Q1/368H01Q1/50H01Q1/48H01Q1/273
Inventor 吴边李文华祖浩然卢宇锋
Owner XIDIAN UNIV
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