EP3915171A1 - Verfahren zum herstellen einer antenne mit einer mehrdimensionalen struktur und antenne mit einer mehrdimensionalen struktur - Google Patents
Verfahren zum herstellen einer antenne mit einer mehrdimensionalen struktur und antenne mit einer mehrdimensionalen strukturInfo
- Publication number
- EP3915171A1 EP3915171A1 EP20701732.8A EP20701732A EP3915171A1 EP 3915171 A1 EP3915171 A1 EP 3915171A1 EP 20701732 A EP20701732 A EP 20701732A EP 3915171 A1 EP3915171 A1 EP 3915171A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layers
- antenna
- electrically conductive
- dimensional
- dimensional structure
- 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.)
- Withdrawn
Links
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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
- H01Q9/27—Spiral antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
Definitions
- the present invention relates to a method for producing an antenna with a multidimensional structure or antennas with a multidimensional structure and an antenna with a multidimensional structure or with a multidimensionally structured antenna.
- High-frequency antennas for example for mobile telephony, often have a comparatively small bandwidth due to their design. There are, among other things
- Antennas that can cover all commercially relevant frequency bands. This is due in particular to the usual thin-layer structure of components which have only limited flexibility. This means that more than one antenna sometimes has to be installed in a modern mobile radio telephone.
- fractal antenna Structures used.
- the publication WO 2006/082577 A1 discloses a so-called Sierpinski triangle as the structure of the antenna, in which different electrical lengths can be used to receive further frequencies. Measurements on thin-film structures have proven the basic feasibility of such antenna structures, but the reception peaks are sharply limited.
- the present invention is therefore based on the object of providing a method for producing an antenna with a multidimensional structure and a corresponding antenna with which this disadvantage is avoided and a broadband antenna with wide reception peaks is provided.
- a method for producing an antenna with a multi-dimensional structure made of an electrically conductive material in which the multi-dimensional structure has at least two layers arranged one above the other, the at least two layers being brought up in succession such that they touch one another.
- the multidimensional structure has different lengths. Due to the multilayer structure with freely definable or configurable layer heights, the width of the different reception bands can also be adjusted, so that overall a more efficient structure with an extended reception band and scalability, in particular in height, is achieved as a third dimension.
- a direct multidimensional, in particular special three-dimensional, structuring from a single material takes place without subsequent joining processes for the spatial representation of the antenna.
- the antenna can be a grouped, fractal and / or flat antenna structure as the antenna structure, that is to say as the multidimensional structure exhibit.
- An electrically conductive material is to be understood as a material whose electrical conductivity at 25 ° C is greater than 10 6 S / m.
- a multidimensional structure is to be understood here to mean any structure which has a non-negligible extent in at least two spatial directions. An extension that is less than 5 percent of an extension in another spatial direction should be regarded as a negligible expansion in one spatial direction.
- Fracture structure is to be understood here as any structure that has ever smaller self-similar structures. The proposed method is particularly suitable for more complex antenna geometries such as the fractal antenna structures already mentioned.
- One of the at least two layers is typically arranged on a substrate made of an electrically non-conductive material. Provision can also be made to incorporate at least one of the at least two layers, but preferably all of the layers, into a structure prefabricated on the substrate.
- At least one of the layers is applied by a three-dimensional screen printing method, in which a screen with predetermined openings is placed over the substrate or layer to be coated and a material to be printed is applied through the openings.
- a paste typically a metal-containing paste, is preferably printed on one another in any desired form, so that the structure has a height of several millimeters.
- a height is typically 80 ⁇ m to 10 mm, preferably 0.1 mm to 5 mm. In the case of fractal antennas in particular, the height can be between 0.1 mm and 1.5 mm.
- the structure can optionally be sintered afterwards in order to obtain full metallic properties. Alternatively or additionally, hardening can also be carried out without sintering, for example by irradiation with electromagnetic radiation in the ultraviolet (200 nm-380 nm) or infrared (780 nm-3 pm) wavelength range and / or gluing.
- At least one of the layers is applied by a metallic melt coating.
- This also called “fused fila- ment fabrication "type of process can also be combined with a subsequent sintering step, but it can also, as already described, alternatively or additionally take place without sintering.
- At least one of the layers can be moved through a three-dimensional beam process, preferably selective laser melting, electron beam deposition or conventional lithography, preferably lithography in the ultraviolet wavelength range, in order to generate precisely defined structures at short lengths.
- one of the layers can be applied by a rapid prototyping method, in particular by laminated object manufacturing, in order to enable the layer to be designed in a time-efficient manner.
- a contour of at least one of the layers is obtained by stamping. When the layer has been deposited, the desired contour can then be generated quickly and easily.
- a contour of at least one of the layers can also be cut by laser beam or water jet cutting. With this type of process, too, an already deposited or formed layer is subsequently contoured and structured.
- At least one of the layers can be formed by laser cladding, which is also referred to as laser wire charging, in order to ensure a defined deposition of electrically conductive material in an efficient manner.
- Aftertreatment of the multidimensional structure can be carried out by pouring into an electrically non-conductive plastic, forming or infiltrating with a further functional material and / or with an additional support structure.
- an electrically non-conductive plastic forming or infiltrating with a further functional material and / or with an additional support structure.
- antennas made of copper for example, it is also possible in the case of antennas made of copper, for example, to provide a planar passivation layer thereon.
- the types of processes described for production can also be combined with one another, so that different layers are produced with different types of processes.
- More than two layers can be provided, from which the antenna and the fractal structure are constructed.
- the layers can all have the same shape or contour, but a different shape and / or contour can also be provided at least in pairs. Likewise, the material of the respective layers can always be identical or different in pairs. However, the layers are preferably in direct contact, that is to say in direct contact with one another.
- a multi-layer system is thus realized in which the first layer typically only touches the adjacent layer or alternatively only the adjacent layer and the substrate, the last layer only touches the layer adjacent to it and all the layers arranged between the first layer and the second layer touch adjacent layers.
- An antenna has a multi-dimensional structure and is made of an electrically conductive material.
- the multidimensional structure has at least two layers which are arranged one above the other and touching one another. One of these at least two layers is preferably arranged on a substrate made of an electrically non-conductive material.
- the fractal structure can be designed as a Sierpinski triangle, a Sierpinski carpet or a sinus spiral structure.
- the electrically conductive material is a metal, an electrically conductive ceramic or an electrically non-conductive matrix material filled with a metal or an electrically conductive ceramic.
- the electrically conductive material is preferably copper, aluminum and / or stainless steel and alloys thereof.
- the antenna described is typically produced using the method described, or the method described is suitable for producing the antenna described.
- a radar device and / or a directional radio device an antenna with the described properties is typically built.
- Figure 1 is a schematic side view of a multi-dimensional antenna ne.
- FIG. 3 shows a reception characteristic of an antenna designed as a Sierpinski triangle compared to a simulation
- Fig. 4 a Sierpinski carpet
- Figure 1 shows a schematic side view of a layer structure of an antenna, in which on a substrate 3 made of an electrically non-conductive material in direct contact a first layer 1 made of an electrically conductive material and on the first layer 1 also in direct contact second layer 2 are applied from an electrically conductive material.
- Both the first layer 1 and the second layer 2 are held in the form of a multi-dimensional and fractal structure, in the embodiment shown, in the form of a Sierpinski triangle 4, and aligned one above the other, ie they have in particular identical dimensions.
- This Sierpinski triangle 4 is shown in plan view in FIG. Recurring features are provided with identical reference numerals in this figure as in the following figures.
- the Sierpinski triangle 4 has a segment length of 3 mm and is a total of 1.2 mm high in copper printed and sintered.
- FIG. 3 shows the reception peaks of this antenna in comparison with a simulation.
- the antenna shows a large number of reception peaks, which are also very wide, so that use over a width of almost 18 GHz is possible.
- At least one of the layers 1 or 2 can be deposited by a three-dimensional screen printing method, by means of which both the height and the geometry of each layer 1, 2 can be defined in a simple manner.
- the height of the antenna can be between 50 pm and 2000 pm.
- first layer 1 and / or the second layer 2 As a material from which the first layer 1 and / or the second layer 2 are formed, in addition to metals such as copper or aluminum, alloys such as steel or electrically conductive ceramics can also be used.
- the layers 1, 2 can also be formed such that at least one slope, at least one overhang or the like is integrated in the height direction.
- the layers 1 and 2 can also have different heights, but can also have an identical height or generally identical dimensions.
- a coupling type of the antenna to further electrical or electronic units or devices can be both galvanic and capacitive.
- metallic fused filament fabrication In addition to three-dimensional screen printing, metallic fused filament fabrication, three-dimensional blasting processes, laminated object modeling, punching, laser beam cutting, water jet cutting, machining or laser wire processing can be used as further manufacturing processes for at least one of layers 1, 2. Any combination of manufacturing processes is possible.
- a Sierpinski carpet 5 can also serve as the fractal structure of the antenna.
- fractal structures with more than three different lengths, i.e. more than three self-similar structural features that only differ in length, can be used for Reception can be used.
- a sine spiral 6 can also be used.
- a further continuously changing structure with curvatures in the second or third can also be used
Landscapes
- Details Of Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019200922.0A DE102019200922A1 (de) | 2019-01-25 | 2019-01-25 | Verfahren zum Herstellen einer Antenne mit einer mehrdimensionalen Struktur und Antenne mit einer mehrdimensionalen Struktur |
| PCT/EP2020/051458 WO2020152194A1 (de) | 2019-01-25 | 2020-01-22 | Verfahren zum herstellen einer antenne mit einer mehrdimensionalen struktur und antenne mit einer mehrdimensionalen struktur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3915171A1 true EP3915171A1 (de) | 2021-12-01 |
Family
ID=69190783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20701732.8A Withdrawn EP3915171A1 (de) | 2019-01-25 | 2020-01-22 | Verfahren zum herstellen einer antenne mit einer mehrdimensionalen struktur und antenne mit einer mehrdimensionalen struktur |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3915171A1 (de) |
| DE (1) | DE102019200922A1 (de) |
| WO (1) | WO2020152194A1 (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620861B1 (en) * | 2015-06-01 | 2017-04-11 | Lockheed Martin Corporation | Configurable joined-chevron fractal pattern antenna, system and method of making same |
| US20180166776A1 (en) * | 2016-12-09 | 2018-06-14 | University Of Idaho | Stacked printed circuit board implementations of three dimensional antennas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100026590A1 (en) * | 2004-07-28 | 2010-02-04 | Kuo-Ching Chiang | Thin film multi-band antenna |
| US7113141B2 (en) | 2005-02-01 | 2006-09-26 | Elta Systems Ltd. | Fractal dipole antenna |
| US8369950B2 (en) * | 2005-10-28 | 2013-02-05 | Cardiac Pacemakers, Inc. | Implantable medical device with fractal antenna |
| FR2899388B1 (fr) * | 2006-03-28 | 2008-12-05 | Saint Gobain | Substrat muni d'un element electroconducteur a fonction d'antenne |
| TW200803041A (en) * | 2006-06-29 | 2008-01-01 | Tatung Co Ltd | Planar antenna for the radio frequency identification tag |
-
2019
- 2019-01-25 DE DE102019200922.0A patent/DE102019200922A1/de not_active Withdrawn
-
2020
- 2020-01-22 WO PCT/EP2020/051458 patent/WO2020152194A1/de not_active Ceased
- 2020-01-22 EP EP20701732.8A patent/EP3915171A1/de not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620861B1 (en) * | 2015-06-01 | 2017-04-11 | Lockheed Martin Corporation | Configurable joined-chevron fractal pattern antenna, system and method of making same |
| US20180166776A1 (en) * | 2016-12-09 | 2018-06-14 | University Of Idaho | Stacked printed circuit board implementations of three dimensional antennas |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2020152194A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019200922A1 (de) | 2020-07-30 |
| WO2020152194A1 (de) | 2020-07-30 |
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