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An Active Broadband Pattern Reconfigurable Radome

A radome and dielectric layer technology, applied in the field of radomes, can solve the problems of complicated welding and regulation, narrow radome bandwidth, no broadband, etc., and achieve the effects of continuously adjustable switching state, expanding working bandwidth, and simple structure

Active Publication Date: 2021-04-23
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires a complicated welding process, and the working bandwidth of the AFSS radome is 2.5GHz, which does not have broadband characteristics
[0006] Graphene is a two-dimensional planar carbon atom thin film material, which has the characteristics of single atomic layer thickness, high mechanical hardness, high carrier mobility, good flexibility and light transmission, and adjustable electrical conductivity. Therefore, it can be used To design a new type of active frequency selective surface to solve the shortcomings of current active frequency selective surface radome such as narrow bandwidth, complicated welding and regulation

Method used

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  • An Active Broadband Pattern Reconfigurable Radome
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  • An Active Broadband Pattern Reconfigurable Radome

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]Example 1: Working in the direction map of 25GHz Reconfigurable antenna

[0050]Referfigure 1 The present embodiment includes an antenna cover composed of a graphene-cross groove multilayer frequency selection surface unit 1 and a full-directional antenna 2 as a source of radiation. The frequency selection surface unit 1 consists of a pair of dielectric layers 12, a pair of dielectric layers 12, a pair of dielectric layers 12, and a center-loaded graphene patch 14.

[0051]Referfigure 2 The frequency selection surface unit is a patch layer 11, the dielectric layer, the dielectric layer B 13, the graphene patch 14, the slit layer 15, the dielectric layer B 13, the dielectric layer 12, the patch layer 11 is upward The form of overlapping is made. Among them, the dielectric layer includes polysilicon, the relative dielectric constant is 11.7, the height H1 = 0.7 mm, the dielectric layer B 13 is silica, the relative dielectric constant is 3.9, the height H2 = 30 nm, and the dielectric l...

Embodiment 2

[0062]Example 2: Stepping on 22GHz Screening Reconfigurable Antenna

[0063]In this embodiment, the parameters of the full-toch patch antenna are adjusted to L = 4.3 mm, W = 2.9 mm, so that the full-to-the antenna works at 22GHz. The remaining parameters and simulation models are the same as in Example 1.

Embodiment 3

[0064]Example 3: Stepping on 28GHz Screening Reconfigurable Antenna

[0065]In this embodiment, the parameters of the full-to-pending patch antenna are adjusted to L = 3.2 mm, W = 2.0 mm, so that the whole-to-the antenna works at 28 GHz. The remaining parameters and simulation models are the same as in Example 1.

[0066]The following combined simulation calculations further describe the technical effects of the present invention:

[0067]Simulation content

[0068]1) Simulation of the graphene-metal multilayer structure frequency selection surface proposed by the present invention is simulated using HFSS full-wave simulation software.Figure 6 Indicated.

[0069]2) The antenna direction map of the first embodiment of the present invention is simulated by HFSS full-wave simulation software.Figure 7 Indicated.

[0070]3) Simulation of the antenna direction map of Example 2 of the present invention using HFSS full-wave simulation software, and the result is asFigure 8 Indicated.

[0071]4) The antenna dire...

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Abstract

The present invention proposes an active broadband pattern reconfigurable radome, which is composed of graphene-cross-groove multilayer active frequency selective surface units. The active frequency selective surface unit is composed of a pair of patch layers, a pair of dielectric layers A, a pair of dielectric layers B, and a cross-groove gap layer loaded with graphene patches in the middle, through a pair of dielectric layers By applying a bias voltage between A and the slot layer, the broadband reflection and transmission switch can be adjusted, and the periodically arranged active frequency selective surface is loaded around the omnidirectional antenna to form an N-face radome. By controlling different The transmission switch and adjustable state of the surface can realize the antenna's multi-functional pattern reconfigurable characteristics such as single-beam full-angle scanning, multi-beam scanning and gain continuously adjustable in the broadband range.

Description

Technical field[0001]The present invention relates to an antenna cover, and more particularly to an active width direction map reconstituted antenna cover, which can be used in the direction map scanning of the radio frequency terminal signal transmitting and reception of millimeter wave communication system, which belongs to the field of antenna technology.Background technique[0002]The rapid development of the wireless communication system makes it increasingly higher. Therefore, the reconstructed antenna has become the development direction of the future antenna. Reconfigurable antennas can be divided into: frequency reconfigurable antenna (including a broadband band and implementing multi-band), direction map reconstituted antenna, polarized reconfigurable antenna, and multi-electromagnetic parameter reconstituted antenna. In general, one or several of the frequency, the direction map, the polarization method, etc. of the antenna can be refactored in a variety of parameters such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q3/44H01Q15/00H01Q25/00
CPCH01Q1/422H01Q3/446H01Q15/002H01Q25/00
Inventor 张伟费冬亮贺连星吴边胡月祖浩然
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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