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Flexible antenna based on metamaterial structure and signal transmission device

A flexible antenna and metamaterial technology, applied to antenna grounding devices, antennas suitable for movable objects, antennas and other directions, can solve problems such as grounding in metamaterial research, and achieve strong designability, high gain characteristics, and reliability. strong effect

Active Publication Date: 2021-05-04
AEROSPACE TIMES FEIHONG TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Metamaterials have many magical properties such as negative refraction properties, backward radiation properties, flat plate convergence, evanescent wave amplification, inverse Doppler frequency shift, inverse Cherenkov radiation, etc., but the dielectric constant and magnetic properties do not exist in nature. Materials with negative conductivity, so the research on metamaterials was once stranded

Method used

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  • Flexible antenna based on metamaterial structure and signal transmission device
  • Flexible antenna based on metamaterial structure and signal transmission device
  • Flexible antenna based on metamaterial structure and signal transmission device

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Embodiment

[0055] Taking the width of the slot line in the cross-shaped slot 4 as 0.4mm and the length as 3.2mm as an example, for a flexible antenna based on a metamaterial structure according to the present invention, the model is simulated by high-frequency three-dimensional electromagnetic field simulation software, and the simulation frequency The range is 1-4GHz, and the obtained reflection coefficient S11 curve of a flexible antenna based on metamaterial structure is as follows image 3 As shown, the effective operating frequency range of the antenna reflection coefficient less than -10dB is 2.2-2.9GHz, the relative bandwidth is 27.45%, and the antenna has ultra-wideband characteristics; the far-field E-plane patterns at 2.4GHz and 2.8GHz are simulated as Figure 4 and Figure 5 As shown, the gain remains at about 8dBi in the operating frequency range, compared with the traditional microstrip flexible antenna without metamaterial structure of the same size, a kind of flexible ante...

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Abstract

The invention discloses a flexible antenna based on a metamaterial structure and a signal transmission device, and relates to the technical field of microwave antenna engineering, and the flexible antenna comprises a dielectric substrate which is used for providing support for the flexible antenna, a defected ground structure used for providing an antenna ground for the surface current in the flexible antenna, and having the surface with a plurality of grooves with the same shape and size to enable the defected ground structure to have metamaterial characteristics, and a microstrip oscillator used for radiating the flexible antenna signal. The flexible antenna based on the metamaterial structure has the advantages of high gain, ultra wide band and the like, can be conformal with various carriers, and is low in cost, wide in application and high in designability.

Description

technical field [0001] The invention relates to the technical field of microwave antenna engineering, in particular to a flexible antenna and a signal transmission device based on a metamaterial structure. Background technique [0002] In many practical engineering applications, it is required that the antenna can be closely combined with the given object structure shape, and these structures can be certain positions of the carrier or the carrier itself. In the field of antennas, an antenna form that can have the same shape or shape as an installation carrier structure is generally called a conformal antenna. After the antenna conforms to the carrier, it can greatly reduce the fluid resistance in the motion of the carrier, improve the performance of the carrier, and reduce the difficulty of carrier structure design. Therefore, common antenna technology in various scenarios is an important topic in today's antenna design. [0003] Flexible antennas refer to antennas processe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/48H01Q1/38H01Q15/00H01Q1/27
CPCH01Q1/48H01Q1/38H01Q15/0086H01Q1/27
Inventor 刘晓昕刘雅宁李承泽刘记朋武蔚琦
Owner AEROSPACE TIMES FEIHONG TECH CO LTD
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