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WO2019134599A1 - Couvercle d'antenne - Google Patents

Couvercle d'antenne Download PDF

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Publication number
WO2019134599A1
WO2019134599A1 PCT/CN2018/125122 CN2018125122W WO2019134599A1 WO 2019134599 A1 WO2019134599 A1 WO 2019134599A1 CN 2018125122 W CN2018125122 W CN 2018125122W WO 2019134599 A1 WO2019134599 A1 WO 2019134599A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
metal
hollow
radome
hollowed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/125122
Other languages
English (en)
Chinese (zh)
Inventor
刘若鹏
赵治亚
刘政显
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuang Chi Cutting Edge Technology Ltd
Original Assignee
Kuang Chi Cutting Edge Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201820025961.1U external-priority patent/CN207677084U/zh
Priority claimed from CN201810016438.7A external-priority patent/CN110021820B/zh
Application filed by Kuang Chi Cutting Edge Technology Ltd filed Critical Kuang Chi Cutting Edge Technology Ltd
Publication of WO2019134599A1 publication Critical patent/WO2019134599A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices

Definitions

  • the present invention relates to the field of antenna protection devices, and in particular to a radome.
  • radomes are usually made of a low-loss, pure material that only serves to protect the antenna, but it also affects the performance of the antenna to the permissible range.
  • the existing radome has the following three problems. :
  • the wave-transparing performance of common materials is relatively uniform.
  • the wave-transmission in the working frequency band is excellent in the wave-transmission effect of adjacent frequency bands.
  • the wave-transmission outside the working frequency band easily interferes with the normal operation of the antenna;
  • the present invention provides a radome that spreads a metamaterial structure in a low-loss matrix material by a multilayer stacking technique, thereby making the radome have a higher transmittance at a large angle, and Ensure that the antenna works properly and has high mechanical strength.
  • a radome comprising a cover body having a receiving cavity for receiving an antenna.
  • the cover body comprises: a wave-transmission structure layer, the wave-transmission structure layer comprises a skin layer and a metal hollow layer, and the metal hollow layer is disposed between two adjacent skin layers; wherein the metal hollow layer comprises: a plurality of hollow structures, hollow structures
  • the utility model comprises: a polygonal metal piece, wherein a straight groove is arranged between opposite sides of the metal piece, wherein the side length of the polygon is a positive even number.
  • the contact of the edge of the linear groove and the metal sheet is further provided with a snap-fit structure.
  • a plurality of hollow structures are connected by a snap-fit structure to form a single layer of conductive geometry.
  • the metal hollow layer comprises: a single layer of conductive geometry, or a single layer of conductive geometry superimposed multilayer conductive geometry.
  • the metal sheet is a regular polygonal metal sheet.
  • a plurality of linear grooves on the regular polygonal metal sheet intersect at the center of the regular polygon.
  • a layer of lightweight material is disposed between the skin layer and the metal hollow layer.
  • the layer of lightweight material is a polymethacrylimide layer or a honeycomb structure layer.
  • a film layer is disposed between the layer of lightweight material and the metal hollow layer.
  • the skin layer has a dielectric constant of 2.7-3.2.
  • the material of the metal sheet is gold, silver, copper, a gold alloy, a silver alloy, a copper alloy, a zinc alloy or an aluminum alloy.
  • the present invention provides a metal hollow layer between adjacent two skin layers, and the metal hollow layer includes a plurality of hollow structures, and the hollow structure includes a polygonal metal piece, and a straight groove is disposed between opposite sides of the metal piece, thereby
  • the multi-layer material consisting of metal microstructure and common materials guarantees high transmission in the working frequency band on the one hand, and good strength performance on the other hand, providing a better protection environment for the normal operation of the antenna.
  • FIG. 1 is a schematic view of a cross section of a transmission structure layer according to an embodiment of the present invention
  • FIG. 2 is a schematic view of a hollow structure according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a single layer conductive geometry in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing simulation results of absorbing properties of a metamaterial according to an embodiment of the present invention.
  • a radome is provided.
  • a radome includes: a wave permeable structure layer including a skin layer 1 and a metal hollow layer 4, and a metal hollow layer 4 disposed on two adjacent skin layers 1; wherein, the metal hollow layer 4 comprises: a plurality of hollow structures, the hollow structure comprises: a polygonal metal piece, and the opposite sides of the metal piece are provided with a linear groove 21, wherein the side length of the polygon is a positive even number.
  • the conventional low-loss material in the prior art has a high wave-transmission rate, and the wave-transmission performance does not change much as the frequency changes.
  • the present invention places the hollow structure in a common material interlayer. By adjusting the electromagnetic response of the microstructure, the incident electromagnetic wave can be modulated, specifically:
  • the cover body is formed by placing a metal hollow layer 4 composed of a uniformly distributed hollow structure between two adjacent skin layers composed of a common material, so that the skin and the hollow structure constitute a wave-transparent structure layer, and the wave-transmission structure
  • the layer of lightweight material 2 and the film layer 3 are also used in the layer.
  • the wave-transmissive layer includes, in order from top to bottom, a skin layer 1, a film layer 3, a metal hollow layer 4, and a film layer.
  • a lightweight material layer 2 is provided between the three, wherein the lightweight material layer 2 may be a lightweight material having good microwave permeability such as a honeycomb structure or a polymethacrylimide layer (or a PMI layer), and 1 shows the specific structure of the transmission structure layer, but those skilled in the art should understand that the transmission structure layer can also be set according to actual needs, for example, according to an embodiment of the present invention, the transmission structure layer is further The method includes: providing a film layer 3 between the skin layer 1 and the lightweight material layer 2; Another embodiment of the invention, further provided with a hollow metal layer on the outer surface of the skin layer 4, which is not limited in the present invention.
  • the simulation result of the radome is that when the electromagnetic wave is incident on the radome, the electromagnetic wave transmission coefficient value in the 8-12 GHz band is greater than -1 dB when the TE wave is irradiated to the material at 70°, and the electromagnetic wave is transmitted through.
  • the wave rate is very high.
  • the metal hollow layer 4 is disposed between the adjacent two skin layers 1, and the metal hollow layer 4 includes a plurality of hollow structures, and the hollow structure includes a polygonal metal piece, the metal piece A linear groove 21 is disposed between the opposite sides, so that the multi-layer material composed of the metal microstructure and the common material ensures high transmittance in the working frequency band on the one hand, and good strength performance on the other hand.
  • the normal work provides a better protection environment.
  • the contact between the linear groove 21 and the edge of the metal piece is further provided with a snap-fit structure.
  • the hollow structure is a regular hexagonal metal piece, and a linear groove 21 is disposed between each pair of opposite sides of the regular hexagon, and three of the regular hexagons
  • the linear groove 21 is provided with a hollow snap structure at the contact of the straight hexagon 21 and the edge of the metal strip, so that the plurality of hollow structures can pass through the snap structure on the hollow structure
  • a plurality of hollow structures are periodically connected together by a snap structure on the hollow structure to form a single layer conductive geometry, the single layer conductive geometry
  • a circuit equivalent to one LC allows electromagnetic waves to pass through in a wide frequency band, and thus exhibits high wave transmission characteristics at 8-12 GHz.
  • FIG. 2 and FIG. 3 show that the hollow structure is a regular hexagon, the hollow structure may be any polygon of a positive even number such as a quadrangle or a hexagon.
  • the metal hollow layer 4 can be a single layer conductive geometry, and can also be a multi-layer conductive geometry with a single layer of conductive geometry superimposed, and the geometry of each hollow structure in each layer of conductive geometry (adjustable The length or width of the polygon can be adjusted.
  • the metal hollow layer 4 is a three-layer superimposed single-layer conductive geometry, and the hollow structure in each single-layer conductive geometry adopts FIG.
  • the hollow structure shown is connected, the hollow structure is a regular hexagon, and the side length of the regular hexagon is 3 mm.
  • the width of the linear groove 21 is 1 mm
  • the buckle structure comprises a plurality of buckles.
  • Component 22, and the snap member 22 is a non-closed square structure, and the side length of the snap member 22 is 0.05 mm; according to another embodiment of the present invention, the metal hollow layer 4 is a 2-layer superimposed single The layer has a conductive structure, and the number of the hollow structures in each single-layer conductive geometry is different, and the sizes of any two hollow structures in each layer are inconsistent, which is not limited by the present invention.
  • the skin layer has a skin dielectric constant of 2.7-3.2.
  • the dielectric constant of the skin can be selected according to actual needs in the range of 2.7-3.2.
  • the radome is provided with two layers of skins, the two layers.
  • the relative dielectric constants of the skins are 3.15 and 2.7, respectively.
  • other coefficients of the skin may also be set according to actual needs, for example, the loss of the two layers of skin according to an embodiment of the present invention.
  • the thickness of the two layers of the skin is 0.4 mm and 0.1 mm, respectively, which is not limited in the present invention.
  • the material of the metal sheet is gold, silver, copper, a gold alloy, a silver alloy, a copper alloy, a zinc alloy or an aluminum alloy.
  • the hollow structure may use any metal material including, but not limited to, gold, silver, copper, gold alloy, silver alloy, copper alloy, zinc alloy or aluminum alloy, and the metal material may also be solid, liquid, Fluid or powder.
  • the metal hollow layer is disposed between two adjacent skin layers, and the metal hollow layer includes a plurality of hollow structures, and the hollow structure includes a polygonal metal piece, metal A linear groove is arranged between the opposite sides of the sheet, so that the multi-layer material composed of the metal microstructure and the common material ensures high transmittance in the working frequency band on the one hand and good strength performance on the other hand.
  • the normal operation of the antenna provides a better protection environment.

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  • Details Of Aerials (AREA)

Abstract

L'invention concerne un couvercle d'antenne comprenant : une couche structurelle de transmission d'ondes comprenant des couches de revêtement et une couche évidée métallique, la couche évidée métallique se situant entre deux couches de revêtement adjacentes ; la couche évidée métallique comprenant de multiples structures évidées, chaque structure évidée comprenant une feuille métallique polygonale pourvue d'une rainure linéaire entre des faces opposées de la feuille métallique, la longueur des côtés du polygone étant un nombre pair positif. Dans la présente invention, étant donné qu'une couche évidée métallique se situe entre deux couches de revêtement adjacentes, la couche évidée métallique comprend de multiples structures évidées, et chaque structure évidée comprend une feuille métallique polygonale pourvue d'une rainure linéaire agencée entre des faces opposées de la feuille métallique ; un matériau multicouche composé d'une microstructure métallique et de matériaux communs garantit une transmission élevée d'ondes dans la bande de fréquence de travail, et présente également une bonne performance de résistance, ce qui fournit un meilleur environnement de protection pour un fonctionnement normal de l'antenne.
PCT/CN2018/125122 2018-01-08 2018-12-29 Couvercle d'antenne Ceased WO2019134599A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201820025961.1 2018-01-08
CN201810016438.7 2018-01-08
CN201820025961.1U CN207677084U (zh) 2018-01-08 2018-01-08 一种天线罩
CN201810016438.7A CN110021820B (zh) 2018-01-08 2018-01-08 一种天线罩

Publications (1)

Publication Number Publication Date
WO2019134599A1 true WO2019134599A1 (fr) 2019-07-11

Family

ID=67144342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/125122 Ceased WO2019134599A1 (fr) 2018-01-08 2018-12-29 Couvercle d'antenne

Country Status (1)

Country Link
WO (1) WO2019134599A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090109115A1 (en) * 2007-10-26 2009-04-30 Eads Deutschland Gmbh Radome with integrated plasma shutter
CN203859228U (zh) * 2014-03-18 2014-10-01 深圳光启创新技术有限公司 频选蒙皮、天线罩及天线系统
CN104538710A (zh) * 2015-01-23 2015-04-22 东南大学 一种频率选择表面结构
CN104901008A (zh) * 2014-03-04 2015-09-09 波音公司 防雷天线罩系统
CN204706638U (zh) * 2015-06-30 2015-10-14 深圳光启高等理工研究院 超材料滤波结构及具有其的超材料天线罩和天线系统
CN105186132A (zh) * 2015-10-13 2015-12-23 中国舰船研究设计中心 低损耗微单元低通频率选择表面天线罩及制作方法
CN106558766A (zh) * 2015-09-30 2017-04-05 深圳光启高等理工研究院 超材料复合结构及其制造方法和天线罩
CN106654563A (zh) * 2015-07-13 2017-05-10 深圳光启高等理工研究院 天线罩
CN206610910U (zh) * 2017-01-20 2017-11-03 武汉灵动时代智能技术股份有限公司 一种可重构超材料结构
CN207677084U (zh) * 2018-01-08 2018-07-31 深圳光启尖端技术有限责任公司 一种天线罩

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090109115A1 (en) * 2007-10-26 2009-04-30 Eads Deutschland Gmbh Radome with integrated plasma shutter
CN104901008A (zh) * 2014-03-04 2015-09-09 波音公司 防雷天线罩系统
CN203859228U (zh) * 2014-03-18 2014-10-01 深圳光启创新技术有限公司 频选蒙皮、天线罩及天线系统
CN104538710A (zh) * 2015-01-23 2015-04-22 东南大学 一种频率选择表面结构
CN204706638U (zh) * 2015-06-30 2015-10-14 深圳光启高等理工研究院 超材料滤波结构及具有其的超材料天线罩和天线系统
CN106654563A (zh) * 2015-07-13 2017-05-10 深圳光启高等理工研究院 天线罩
CN106558766A (zh) * 2015-09-30 2017-04-05 深圳光启高等理工研究院 超材料复合结构及其制造方法和天线罩
CN105186132A (zh) * 2015-10-13 2015-12-23 中国舰船研究设计中心 低损耗微单元低通频率选择表面天线罩及制作方法
CN206610910U (zh) * 2017-01-20 2017-11-03 武汉灵动时代智能技术股份有限公司 一种可重构超材料结构
CN207677084U (zh) * 2018-01-08 2018-07-31 深圳光启尖端技术有限责任公司 一种天线罩

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