High-gain slot antenna and method based on graphene three-dimensional phase tunable lens

A slot antenna and graphene technology, applied in the field of terahertz antennas, can solve the problems of expanding radiation gain bandwidth and mode bandwidth, and achieve the effect of enhanced energy control and working frequency band expansion

Active Publication Date: 2022-07-19
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0004] For the Vivaldi antenna, it is difficult to adjust the electromagnetic wave over the entire return loss bandwidth because the amplitude and phase distribution of the antenna's radiated field within the aperture is variable with frequency
So far, there is no effective way to simultaneously extend the radiation gain bandwidth and mode bandwidth

Method used

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  • High-gain slot antenna and method based on graphene three-dimensional phase tunable lens
  • High-gain slot antenna and method based on graphene three-dimensional phase tunable lens
  • High-gain slot antenna and method based on graphene three-dimensional phase tunable lens

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Embodiment Construction

[0040] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0041] On the contrary, the present invention covers any alternatives, modifications, equivalents and arrangements within the spirit and scope of the present invention as defined by the appended claims. Further, in order to give the public a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0042] see figure 1 , a high-gain slot antenna based on a graphene thr...

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Abstract

The invention discloses a high-gain slot antenna and a method based on a graphene three-dimensional phase tunable lens. The antenna of the invention adopts a graphene three-dimensional phase tunable lens, and is placed at the front end of the slot antenna, so that the slot antenna can tune the lens unit through the reconfigurable characteristics of graphene under different bias voltages. Different bias voltages can change the surface resistance of the graphene material, thereby changing the characteristics of the lens, thereby changing the energy and phase distribution within the aperture of the slot antenna, improving the antenna gain and eliminating antenna pattern distortion. At the same time, the lens-loaded slot antenna is a new type of hybrid graphene-metal structure slot antenna. The radiation slot structure of the antenna is replaced by a graphene structure. This structure further enhances the control of the energy in the antenna aperture, and brings great advantages to the slot antenna. frequency reconfigurability.

Description

technical field [0001] The invention belongs to the field of terahertz antennas, and relates to a high-gain slot antenna and a method based on a graphene three-dimensional phase tunable lens. Background technique [0002] In practical application scenarios such as large-scale electronic countermeasures, large-capacity data transmission, and high-resolution remote sensing, the demand for microwave frequency systems operating in ultra-wideband is increasing. High-gain, broadband antennas are an important part of such microwave systems. [0003] Since Gibson first proposed the Vivaldi antenna, it has been widely used because of its simple structure, low manufacturing cost, and wide bandwidth. However, the Vivaldi antenna suffers from several fundamental problems that limit its practical application. One of the most obvious problems is the reduction in the actual operating frequency bandwidth of the Vivaldi antenna. Specifically, both the gain bandwidth and the mode bandwidth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/02H01Q15/00H01Q19/06H01Q1/36H01Q1/00H01Q3/46H01Q13/10
CPCH01Q15/02H01Q15/0086H01Q19/06H01Q1/002H01Q3/46H01Q1/368H01Q13/10
Inventor 周涛金江亮程知群潘勉董志华李世琦刘国华刘杰迟梦娇石仁刚宋开新陈科明
Owner HANGZHOU DIANZI UNIV
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