CN112290198A - Deformable antenna and preparation method thereof - Google Patents
Deformable antenna and preparation method thereof Download PDFInfo
- Publication number
- CN112290198A CN112290198A CN202011019895.5A CN202011019895A CN112290198A CN 112290198 A CN112290198 A CN 112290198A CN 202011019895 A CN202011019895 A CN 202011019895A CN 112290198 A CN112290198 A CN 112290198A
- Authority
- CN
- China
- Prior art keywords
- layer
- polylactic acid
- composite material
- antenna
- deformable
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 41
- 239000004626 polylactic acid Substances 0.000 claims abstract description 41
- 239000002131 composite material Substances 0.000 claims abstract description 32
- 230000005855 radiation Effects 0.000 claims abstract description 26
- 238000010146 3D printing Methods 0.000 claims abstract description 14
- 230000008021 deposition Effects 0.000 claims abstract description 6
- 239000012943 hotmelt Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 65
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
- H01Q1/368—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor using carbon or carbon composite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a deformable antenna and a preparation method thereof. A deformable antenna comprises a resistance grounding layer, a heat-deformable polylactic acid composite material layer and an electric wave radiation layer which are sequentially laminated. The preparation method comprises the following steps: selecting one of a resistance grounding layer and an electric wave radiation layer as a base layer, and carrying out hot-melt deposition on a 3D printing heat-deformable polylactic acid composite material on the base layer to form a polylactic acid composite material layer; then, the other of the resistive ground layer and the radio wave radiation layer is bonded to the polylactic acid composite material layer. The antenna has the characteristic of thermal deformation, and the purpose of controllable and autonomous deformation of the antenna is achieved.
Description
Technical Field
The invention relates to the field of antennas, in particular to a deformable antenna and a preparation method thereof.
Background
An antenna is a device used in a radio apparatus to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, remote sensing, radio astronomy and the like all utilize electromagnetic waves to transmit information and all rely on antennas to work. In recent years, with the rapid development of radar and communication systems, antennas of various sizes and shapes are required for automobiles, airplanes, ships, and various consumer electronic devices. The traditional solid metal antenna only has a specific shape, and in order to meet the sending and receiving requirements of different radio signals, the traditional solid metal antenna can only be solved by adopting a mode of carrying a plurality of antennas, which undoubtedly increases the manufacturing cost and the occupied space of the antenna.
The shape and height of the antenna directly affect the reception of radio signals. In order to increase the bandwidth of the antenna, i.e. the frequency range in which it operates efficiently, techniques are often used such as using thicker wires, using metal "netcages" to approximate the thicker wires, tapering antenna elements such as feed horns and single components of multi-antenna integration. The inclination angle of the antenna also affects the transmitting effect of the antenna, for example, the bottom radar antenna is inclined upwards, so that the aerial vehicle at high altitude can receive radio signals conveniently. In addition, the position of the receiving antenna also affects the receiving effect of the signal, and the antenna radiation characteristic of a mobile device such as a mobile phone varies according to the use state of the user.
In short, the current solid metal antenna has the defects of single shape and no deformation, so that the application of the solid metal antenna is limited.
Disclosure of Invention
The invention mainly aims to provide a deformable antenna which has the characteristic of thermal deformation and achieves the purpose of controllable and autonomous deformation of the antenna.
Another object of the present invention is to provide a method for manufacturing the deformable antenna, which reduces the cost of industrial design and manufacture and improves the production efficiency by using a 3D printing technology.
In order to achieve the above object, the present invention provides the following technical solutions.
A deformable antenna comprises a resistance grounding layer, a heat-deformable polylactic acid composite material layer and an electric wave radiation layer which are sequentially laminated;
the polylactic acid composite material is formed by compounding polylactic acid and carbon fibers.
The deformable antenna is of a sandwich structure formed by three layers of materials, and the resistance grounding layer can be used for generating resistance heat when electrified, so that the polylactic acid composite material layer deforms under the action of the resistance heat and simultaneously drives the electric wave radiation layer to deform, and the purpose of autonomous controllable deformation is achieved.
The polylactic acid composite material adopted by the central layer is compounded by polylactic acid and carbon fiber.
The invention also provides a preparation method of the deformable antenna, which specifically comprises the following steps:
selecting one of a resistance grounding layer and an electric wave radiation layer as a base layer, and carrying out hot-melt deposition on a 3D printing heat-deformable polylactic acid composite material on the base layer to form a polylactic acid composite material layer; then, the other of the resistive ground layer and the radio wave radiation layer is bonded to the polylactic acid composite material layer.
The preparation sequence of the resistance grounding layer and the radio wave radiation layer is not limited, the preparation method of the two outer layer materials is determined according to other factors such as material, cost and the like, and a 3D printing technology is preferably adopted, so that the effect of 4D printing is integrally achieved, and the production efficiency is improved.
Compared with the prior art, the invention achieves the following technical effects:
(1) the autonomous controllable thermal deformation can be realized without a mechanical transmission device, and convenience is provided for the miniaturization of an antenna device;
(2) the 3D and 4D printing technology is utilized to improve the production efficiency and realize the intellectualization.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic structural diagram of a deformable antenna provided in the present invention.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.
Various structural schematics according to embodiments of the present disclosure are shown in the figures. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers, and relative sizes and positional relationships therebetween shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, as actually required.
In the context of the present disclosure, when a layer/element is referred to as being "on" another layer/element, it can be directly on the other layer/element or intervening layers/elements may be present. In addition, if a layer/element is "on" another layer/element in one orientation, then that layer/element may be "under" the other layer/element when the orientation is reversed.
In order to overcome the problem that the existing metal antenna cannot be deformed, the invention provides the following antenna.
In order to achieve the above object, the present invention provides the following technical solutions.
A deformable antenna, as shown in figure 1, comprises a resistance grounding layer 1, a heat-deformable polylactic acid composite material layer 2 and an electric wave radiation layer 3 which are sequentially laminated;
the polylactic acid composite material is formed by compounding polylactic acid and carbon fibers.
The deformable antenna is of a sandwich structure formed by three layers of materials, and the resistance grounding layer 1 can be used for being electrified to generate resistance heat, so that the polylactic acid composite material layer 2 deforms under the action of the resistance heat, and meanwhile, the electric wave radiation layer 3 is driven to deform, and the purpose of autonomous controllable deformation is achieved.
On the other hand, the antenna can be deformed, and a mechanical transmission device for adjusting the angle and the position of the antenna is not required to be additionally arranged, so that the size of a device is reduced, and the miniaturization is easier to realize.
The polylactic acid composite material adopted by the central layer is formed by compounding polylactic acid and carbon fiber according to a weight ratio of 90-99: 10-1.
The resistance layer can be made of a material which can generate resistance heat enough for antenna deformation when electrified, is not limited to common metal materials of gold, silver, copper and aluminum, and can also be a high-performance heat transfer material added with graphene, or a polymer material doped with metal and conducting electricity.
The electric wave radiation layer is the main functional layer of the antenna, which is used for radiating electric waves and receiving or transmitting signals, and common metal materials of gold, silver, copper and aluminum or polymer materials doped with metal and conducting can be adopted.
The polymer used in the resistive layer and the radio wave radiation layer is mainly polylactic acid. . The amount of metal doping in the two layers is function dependent.
The above method for manufacturing the transformable antenna is arbitrary and may be bonded together with an adhesive or deposited layer by layer, but the above methods have a problem of low efficiency, and the present invention provides the following preferable manufacturing method.
Firstly, selecting one of a resistance grounding layer and an electric wave radiation layer as a base layer, and carrying out hot-melt deposition on a 3D printing heat-deformable polylactic acid composite material on the base layer to form a polylactic acid composite material layer;
then, the other of the resistive ground layer and the radio wave radiation layer is bonded to the polylactic acid composite material layer.
The key point of the method is that the polylactic acid composite material layer in the middle of the antenna is formed by hot-melt deposition 3D printing, so that the production efficiency can be improved, the method is simultaneously suitable for resistance grounding layers and electric wave radiation layers made of various materials, and the preparation sequence of the two outer surface layers is not limited. Wherein, the temperature of the hot-melt deposition 3D printing is determined according to the type of the polylactic acid composite material.
Taking the resistive ground layer as an example of the base layer, the resistive ground layer may be a metal foil cut in advance, or may be a liquid metal or a molten/liquid polymer doped with a metal as a raw material, and a 3D printing means is used to print the resistive ground layer with a desired size.
And then, thermally fusing and depositing the 3D printing polylactic acid composite material with thermal deformation to form a polylactic acid composite material layer. Then, similarly, the electric wave radiation layer can adopt a metal foil which is cut in advance, or can also adopt liquid metal or molten/liquid polymer doped with metal as raw materials, and the electric wave radiation layer with the required size is printed by adopting a 3D printing means. When a metal foil cut in advance is used, the metal foil is preferably pressed onto the polylactic acid composite material before cooling and solidifying, and can be tightly attached without an adhesive.
In some preferred embodiments, the resistive ground layer, the thermal deformable polylactic acid composite material layer and the electric wave radiation layer are all prepared by 3D printing, so that the effect of 4D printing is achieved as a whole, and the printing is more intelligent.
The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A deformable antenna is characterized by comprising a resistance grounding layer, a heat-deformable polylactic acid composite material layer and an electric wave radiation layer which are sequentially laminated;
the polylactic acid composite material is formed by compounding polylactic acid and carbon fibers.
2. The deformable antenna as claimed in claim 1, wherein the polylactic acid composite polyester is formed by compounding polylactic acid and carbon fiber in a weight ratio of 90-99: 10-1.
3. A deformable antenna as claimed in claim 1, characterized in that said resistive ground plane is a metal layer or a metal-doped and conductive polymer layer.
4. A deformable antenna as claimed in claim 3, wherein the polymer in the resistive ground plane is polylactic acid.
5. A deformable antenna as claimed in claim 1, wherein said electric wave radiating layer is a metal layer or a metal-doped and electrically conductive polymer layer.
6. A deformable antenna as claimed in claim 5, wherein the polymer in the electric wave radiating layer is polylactic acid.
7. A deformable antenna as claimed in claim 3 or 5, wherein the metals in the resistive ground plane and the radio wave radiating plane are independently selected from gold, silver, copper, aluminium.
8. A method of making a deformable antenna, comprising:
selecting one of a resistance grounding layer and an electric wave radiation layer as a base layer, and carrying out hot-melt deposition on a 3D printing heat-deformable polylactic acid composite material on the base layer to form a polylactic acid composite material layer; then, the other of the resistive ground layer and the radio wave radiation layer is bonded to the polylactic acid composite material layer.
9. The manufacturing method according to claim 8, wherein the resistive ground layer and the electric wave radiation layer are metal foils; the process of laminating does: before the polylactic acid composite material layer is cooled and solidified, the other one of the resistance grounding layer and the electric wave radiation layer is extruded on the surface of the polylactic acid composite material layer.
10. The manufacturing method according to claim 8, wherein the resistive ground layer and the electric wave radiation layer are polymer layers doped with metal and conductive;
the preparation method of the base layer comprises the following steps: 3D printing;
the process of laminating does: and 3D printing the other one of the resistance grounding layer and the electric wave radiation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019895.5A CN112290198A (en) | 2020-09-24 | 2020-09-24 | Deformable antenna and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019895.5A CN112290198A (en) | 2020-09-24 | 2020-09-24 | Deformable antenna and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112290198A true CN112290198A (en) | 2021-01-29 |
Family
ID=74422990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011019895.5A Pending CN112290198A (en) | 2020-09-24 | 2020-09-24 | Deformable antenna and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112290198A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315246A1 (en) * | 1983-04-27 | 1984-10-31 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | FIBER COMPOSITE COMPONENT |
| US5686178A (en) * | 1989-12-11 | 1997-11-11 | Advanced Technology Materials, Inc. | Metal-coated substrate articles responsive to electromagnetic radiation, and method of making the same |
| JP2010050598A (en) * | 2008-08-20 | 2010-03-04 | Toray Ind Inc | Metallic luster decoration film for electromagnetic wave-permeable member, and electromagnetic wave-permeable member using the film |
| US20150364824A1 (en) * | 2013-02-08 | 2015-12-17 | Amogreentech Co., Ltd. | Protective cover for portable terminal and method for manufacturing same |
| CN105453709A (en) * | 2013-03-14 | 2016-03-30 | 德克萨斯州大学系统董事会 | Methods and systems for embedding filaments in 3D structures, structural components, and structural electronic, electromagnetic and electromechanical components/devices |
| JP2017123421A (en) * | 2016-01-08 | 2017-07-13 | 株式会社村田製作所 | Wiring board and electronic apparatus |
| CN108000968A (en) * | 2017-11-20 | 2018-05-08 | 中国科学院紫金山天文台 | A kind of new Terahertz carbon fiber composite panel structure |
| JP2018144386A (en) * | 2017-03-07 | 2018-09-20 | 株式会社カネカ | Continuous manufacturing method for molding |
| CA2976782A1 (en) * | 2017-08-16 | 2019-02-16 | Chao Xu | Metal 3d printing method and metallic 3d printing materials |
-
2020
- 2020-09-24 CN CN202011019895.5A patent/CN112290198A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315246A1 (en) * | 1983-04-27 | 1984-10-31 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | FIBER COMPOSITE COMPONENT |
| US5686178A (en) * | 1989-12-11 | 1997-11-11 | Advanced Technology Materials, Inc. | Metal-coated substrate articles responsive to electromagnetic radiation, and method of making the same |
| JP2010050598A (en) * | 2008-08-20 | 2010-03-04 | Toray Ind Inc | Metallic luster decoration film for electromagnetic wave-permeable member, and electromagnetic wave-permeable member using the film |
| US20150364824A1 (en) * | 2013-02-08 | 2015-12-17 | Amogreentech Co., Ltd. | Protective cover for portable terminal and method for manufacturing same |
| CN105453709A (en) * | 2013-03-14 | 2016-03-30 | 德克萨斯州大学系统董事会 | Methods and systems for embedding filaments in 3D structures, structural components, and structural electronic, electromagnetic and electromechanical components/devices |
| JP2017123421A (en) * | 2016-01-08 | 2017-07-13 | 株式会社村田製作所 | Wiring board and electronic apparatus |
| JP2018144386A (en) * | 2017-03-07 | 2018-09-20 | 株式会社カネカ | Continuous manufacturing method for molding |
| CA2976782A1 (en) * | 2017-08-16 | 2019-02-16 | Chao Xu | Metal 3d printing method and metallic 3d printing materials |
| CN108000968A (en) * | 2017-11-20 | 2018-05-08 | 中国科学院紫金山天文台 | A kind of new Terahertz carbon fiber composite panel structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110708406B (en) | Shell, preparation method thereof and electronic equipment | |
| CN102272919B (en) | Semiconductor device, method for producing the same, millimeter-wave dielectric transmission device, method for producing the same, and millimeter-wave dielectric transmission system | |
| CN102035064A (en) | Antenna assembly, manufacturing method thereof and electronic device shell with antenna assembly | |
| US20190348754A1 (en) | Smart antenna for in-vehicle applications that can be integrated with tcu and other electronics | |
| TW201218505A (en) | Method of manufacturing and operating an antenna arrangement for a communication device | |
| CN1933238A (en) | Glass antenna and manufacturing method for the same | |
| CN204424444U (en) | A kind of earphone jack base and electronic equipment | |
| CN113224544A (en) | Housing assembly and electronic device | |
| TW201021286A (en) | Miniature antenna | |
| CN110784564B (en) | Mobile terminal and preparation method of antenna thereof | |
| CN112072293B (en) | Antenna structure, antenna glass assembly and vehicle | |
| EP2936609A1 (en) | Glazing | |
| CN112290198A (en) | Deformable antenna and preparation method thereof | |
| CN109449596A (en) | Directional diagram reconstructable flexible antennas based on shape-memory polymer | |
| CN103219588A (en) | Double-frequency navigation antenna with high isolation | |
| CN105590902A (en) | Antenna package module and method for manufacturing the same | |
| US11128059B2 (en) | Antenna assembly having one or more cavities | |
| CN201364955Y (en) | Helical array antenna | |
| EP2926407B1 (en) | Laminated glazing with first and second antennas | |
| CN208637581U (en) | Antenna and unmanned vehicle | |
| CN116505244A (en) | Vehicle antenna assembly, glass assembly and vehicle | |
| CN201146245Y (en) | Antenna apparatus for transmitting/receiving radio signal | |
| CN113013585B (en) | Antenna and vehicle-mounted equipment | |
| CN210957006U (en) | Be applied to unmanned aerial vehicle's antenna and unmanned aerial vehicle | |
| CN204481125U (en) | High gain perpendicular polarization omni antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210129 |
|
| RJ01 | Rejection of invention patent application after publication |