Unlock instant, AI-driven research and patent intelligence for your innovation.

Active broadband directional diagram reconfigurable antenna cover

A technology of radome and dielectric layer, which is applied in the field of radome, can solve the problems of complex welding process, complicated welding and regulation, narrow bandwidth of radome, etc., and achieves simple structure of bias circuit, continuously adjustable switch state, and expanded working bandwidth Effect

Active Publication Date: 2019-04-16
SHANGHAI ENG CENT FOR MICROSATELLITES
View PDF6 Cites 5 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active broadband directional diagram reconfigurable antenna cover
  • Active broadband directional diagram reconfigurable antenna cover
  • Active broadband directional diagram reconfigurable antenna cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: Reconfigurable antenna with pattern working at 25GHz

[0050] refer to figure 1 , this embodiment includes a radome made of graphene-cross-groove multilayer frequency selective surface unit 1 and an omnidirectional antenna 2 as a radiation source. The frequency selective surface unit 1 is composed of a pair of patch layers 11, a pair of dielectric layers A 12, a pair of dielectric layers B 13, and a cross-groove gap layer 15 loaded with a graphene patch 14 in the center.

[0051] refer to figure 2, the frequency selective surface unit is patch layer 11, dielectric layer A 12, dielectric layer B 13, graphene patch 14, gap layer 15, dielectric layer B 13, dielectric layer A 12, patch layer 11 from top to bottom overlapping forms. Wherein dielectric layer A 12 adopts polysilicon, relative dielectric constant is 11.7, height h1=0.7mm, dielectric layer B 13 adopts silicon dioxide, relative dielectric constant is 3.9, height h2=30nm, and between dielectric l...

Embodiment 2

[0062] Embodiment 2: Reconfigurable Antenna with Pattern Working at 22GHz

[0063] In this embodiment, the parameters of the omnidirectional patch antenna are adjusted to L=4.3 mm and W=2.9 mm, so that the omnidirectional antenna works at 22 GHz. The rest of the parameters and simulation model are the same as in Embodiment 1.

Embodiment 3

[0064] Embodiment 3: A reconfigurable antenna with a pattern working at 28GHz

[0065] In this embodiment, the parameters of the omnidirectional patch antenna are adjusted to L=3.2 mm and W=2.0 mm, so that the omnidirectional antenna works at 28 GHz. The rest of the parameters and simulation model are the same as in Embodiment 1.

[0066] The technical effect of the present invention is further described below in conjunction with simulation calculation:

[0067] 1. Simulation content

[0068] 1) adopt HFSS full-wave simulation software, the graphene-metal multilayer structure frequency selective surface that the present invention proposes is simulated, and its result is as follows Figure 6 shown.

[0069] 2) adopt HFSS full-wave simulation software, simulate the antenna pattern of embodiment 1 of the present invention, its result is as follows Figure 7 shown.

[0070] 3) adopt HFSS full-wave simulation software, simulate the antenna pattern of embodiment 2 of the presen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an active broadband directional diagram reconfigurable antenna cover. The antenna cover is composed of graphene-cross recess multi-layer active-frequency selective surface units. Each active frequency selection surface unit consists of a pair of patch layers, a pair of dielectric layers A, a pair of dielectric layers B, and a cross recess seam layer is arranged in the middleof the unit and loaded with graphene patches, wherein the pair of patch layers, the pair of dielectric layers A and the pair of dielectric layers B are symmetrically arranged up and down. Through applying a bias voltage between the pair of dielectric layers A and the seam layer, the broadband reflection and transmission switch adjustable state can be realized. The active frequency selection surfaces which are periodically arranged are loaded on the periphery of the omnidirectional antenna to form an N-surface antenna cover. Through controlling transmission switches and adjustable states of different surfaces, the reconfigurable characteristics of multifunctional directional diagrams such as single-beam full-angle scanning, multi-beam scanning and gain continuous adjustment of the antennacan be realized in a broadband range.

Description

technical field [0001] The invention relates to a radome, in particular to an active broadband pattern reconfigurable radome, which can be used for pattern scanning of radio frequency terminal signal transmission and reception in a millimeter wave communication system, and belongs to the technical field of antennas. Background technique [0002] The rapid development of wireless communication systems makes the requirements for antennas become higher and higher. Therefore, reconfigurable antennas become the development direction of future antennas. Reconfigurable antennas can be divided into functions: frequency reconfigurable antennas (including realizing broadband and multi-band), pattern reconfigurable antennas, polarization reconfigurable antennas and multi-electromagnetic parameter reconfigurable antennas. Generally, by changing the structure of the reconfigurable antenna, one or more of various parameters such as frequency, pattern, and polarization of the antenna can ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(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
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com