EP3132495A1 - Vorrichtung zur wellenlängenselektiven abschirmung einer auf einem schiff angeordneten antenne - Google Patents
Vorrichtung zur wellenlängenselektiven abschirmung einer auf einem schiff angeordneten antenneInfo
- Publication number
- EP3132495A1 EP3132495A1 EP15714828.9A EP15714828A EP3132495A1 EP 3132495 A1 EP3132495 A1 EP 3132495A1 EP 15714828 A EP15714828 A EP 15714828A EP 3132495 A1 EP3132495 A1 EP 3132495A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- screen cage
- electromagnetic interference
- ship
- cage
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
-
- 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
- H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
-
- 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
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
Definitions
- the present invention relates to a device for wavelength-selective shielding of an antenna arranged on a ship from electromagnetic interference waves.
- antennas for receiving and transmitting powerful signals in the form of electromagnetic waves.
- a top deck antennas cause field strengths of about 100 V / m.
- the field strength of the antennas associated with the high field strength then leads to an increased susceptibility to interference during operation if the antenna has a lower EMC resistance compared to the field strength.
- commercial mass-produced antennas have an EMC strength that is about 10 V / m, and thus usually below the field strengths occurring, for example, on an upper deck.
- the object of the present invention is to provide a device which allows commercial, mostly mass-produced antennas with a given EMC To arrange strength in the areas of a ship in which the field strength exceeds the EMC strength of the antenna.
- the object of the present invention is achieved by a device for
- Umbrella cage formed Faraday cage, which at least partially encloses the antenna, wherein the screen cage comprises rods of electrically conductive material, which are arranged such that the screen cage forms a high pass for the electromagnetic interference wave.
- the device according to the invention has the advantage that the high pass provides for a wave-selective shielding, with which a long-wave, d. H. high-frequency electromagnetic interference wave is prevented from being coupled into the screen cage and thus the field strength exposure can be suppressed by the electromagnetic interference wave.
- the antenna is a transmitting antenna
- the screen cage is able to prevent the coupling out of electromagnetic interference waves, which emanate in the form of spurious emissions from the antenna. Overall, this can reduce the susceptibility of the antenna with the device according to the invention, which ultimately leads to the fact that antennas with an originally lower EMC strength in the area with a potentially high Felsstärbeetzschlagung can be used.
- the shielded antenna is preferably one whose EMC strength has a value below 20 V / m and / or for satellite communication
- the high-pass filter is designed such that the electromagnetic signal waves required for the operation of the antenna are transmitted by the screen cage.
- This can be an antenna for sending and / or
- the screen cage is individually adapted to the antenna and / or to its application. Furthermore, it is conceivable that the device is designed such that it can be placed on already integrated in a ship antennas. Furthermore, it is conceivable that a
- a plurality of antennas is at least partially disposed within the screen cage.
- the electrically conductive rods are arranged such that they form meshes with different mesh sizes and / or mesh shape. It is conceivable that the stitches have substantially the shape of a rectangle, a trapezoid and / or a circle. Furthermore, it is conceivable that the meshes are curved to adapt to the antenna. In particular, the electrically conductive rods are arranged in a lattice-like manner, thereby fixing the self-contained meshes of the mesh, wherein a mesh size is determined by the rods bounding the mesh.
- the shielding ability can be optimally adapted to the environment and the
- the antenna is arranged in the center of the screen cage. This makes the shield for the antenna is particularly effective. It is also conceivable that the antenna is offset or inclined parallel to a central axis. Preferably, then the meshes are adjusted accordingly to effect effective shielding.
- a mesh size defining mesh size will vary within a mesh.
- the mesh size is determined by a distance between two opposite points on the mesh.
- the mesh size determines the screen attenuation by its size.
- the screen cage can be designed in such a way that electromagnetic interference waves with a wavelength greater than a cut-off wavelength, which is predetermined by the mesh sizes, are shielded.
- the mesh size advantageously determines the wavelength selectivity.
- the mesh size is adapted to the shape of the antenna.
- a surface defined by the screen cage it is conceivable for a surface defined by the screen cage to be essentially parallel to the surface
- the device can be designed as accurately as possible to the antenna.
- the screen cage is arranged on an electrically conductive frame, wherein the frame is designed to receive the antenna.
- the frame fixes the antenna relative to the screen cage and advantageously provides for the non-contact arrangement between antenna and screen cage.
- the frame has fastening means by which the device is fixed to the ship.
- a maximum mesh size of the meshes is less than 1/10 of the wavelength of the electromagnetic interference waves and / or
- a smallest mesh size of the mesh is greater than 1/10 of the wavelength of an electromagnetic signal wave.
- an average mesh size of the mesh is between 1/10 of the wavelength of the electromagnetic interference wave and 1/10 of the wavelength of an electromagnetic signal wave.
- an EMC strength of the antenna is less than 15 V / m.
- the mesh sizes are adapted to further electromagnetic interference waves emanating from further arranged on the ship antennas.
- the individual adaptation to the conditions imposed by the ship makes it possible to use the antenna as trouble-free as possible.
- the rods have a non-ferromagnetic metal and / or a rod thickness is adapted to the electromagnetic interference wave. Due to the suitable material and the thickness of the rods, the susceptibility to interference of the antenna during operation can be further reduced.
- the screen cage is not formed square. Rather, it is provided that the screen cage is at least partially curved. If the screen cage surrounded the antenna square, the device would take a corresponding amount of space (depending on the longest extension of the antenna inside the screen cage). Accordingly, that allows
- the screen cage is designed such that it is a.
- the electromagnetic interference waves can be so attenuated that the otherwise occurring by the long-wave electromagnetic interference waves field strength can be suppressed in an advantageous manner.
- the device has an exchangeable screen cage and / or a further screen cage, which can be placed on the screen cage for adaptation to a changed interference wavelength.
- Shielding can be effected. It is conceivable that different external sources of interference emit electromagnetic interference waves, each with different Störwellenin. Depending on the ship's position relative to the external sources of interference, the screen cage or the further screen cage can then be chosen, which is suitable for the most effective possible shielding from electromagnetic interference waves emanating from the external source.
- the screen cage is adapted to the location of the antenna on the ship.
- the antenna is loaded on one side more by electromagnetic interference waves, for example by its arrangement relative to a powerful transmitter, and that according to the
- Screen cage in particular its mesh shape is designed that the most effective shielding for the antenna can be achieved.
- Another object of the present invention is a ship with a device as described above. This allows me to realize a ship in which one does not depend on custom-made antennas with a reduced susceptibility to interference.
- the special designs for the antennas allow to be replaced by mass-produced, ie components-off-the-shelf (cots) antenna.
- FIG. 1 shows a ship with antennas, for which a device for
- Wavelength-selective shielding of the antennas is provided according to the present invention.
- FIG. 2 shows an apparatus for wavelength-selective shielding of the antenna from electromagnetic waves according to a first exemplary embodiment of the present invention.
- FIG. 1 shows a ship 10 for which the device for wavelength-selective shielding of an antenna 1 against electromagnetic interference waves 5 is provided.
- the ship 10 comprises an antenna 2 capable of receiving and / or transmitting signals in the form of electromagnetic waves, the electromagnetic
- the antenna 1 is exposed on such a ship to a plurality of electromagnetic interference waves 5, which differ from each other substantially by their wavelength or frequency.
- the individual electromagnetic interference waves 5 can be generated by an external source, for example a satellite 3, another ship or a transmission center on land, and / or an internal source, for example a further antenna 2 on the ship 10.
- electromagnetic interference waves not provided for the operation of the antenna 1 may adversely affect the functionality of the antenna 1.
- a measure of the susceptibility of the antenna 1 is given by their EMC strength.
- the device comprises a screen cage 4 shaped Faraday cage.
- the screen cage 4 envelops the front of the
- the screen cage 4 is designed such that it forms a high pass.
- the screen cage 4 blocks electromagnetic interference waves 5 with a large wave length, i. H. small frequency, and allows electromagnetic signal waves with a small Wellenläge, d. H. large frequency happen. This advantageously prevents the high field strengths of the long-wave interfering signals from being coupled into the cage or that, in the case of a transmitting antenna in the screen cage 4, no long-wave spurious emissions emanating from the antenna 1 are coupled out of the screen cage 4.
- Useful signals or electromagnetic signal waves pass the screen cage 1 largely lossless.
- FIG. 2 shows a device for wavelength-selective shielding of the antenna 1 of electromagnetic interference waves 5 according to a first exemplary embodiment of the present invention. It is provided in particular that the
- Umbrella cage 4 electrically conductive rods 8, preferably made of a non-ferromagnetic metal having, wherein the rods 8 are arranged like a grid and thereby forming mesh 7.
- the rods 8 are arranged like a grid and thereby forming mesh 7.
- at least two stitches 7 differ by their
- the device comprises a, preferably electrically conductive, frame 6, which is designed to receive the antenna 1, is mounted directly or indirectly on the screen cage 4 and
- the device on the ship 10 preferably has fastening means with which the device on the ship 10, For example, on the outer skin, can be mounted.
- the protruding through the frame 6 in the screen cage 4 antenna 1 is thus at least partially from
- Umbrella cage wrapped 4 is preferably arranged centrally in her. It is provided in particular that the screen cage 4 is adapted in shape to the shape of the antenna 1. In particular, a surface spanned by the screen cage 4 extends substantially parallel to an outer surface of the antenna 1. In this case, the screen cage 4 has a curvature in its shape. In this case, the meshes 7 are preferably trapezoidal in a curved region, or the rods 8 forming the meshes are arranged such that they form a trapezoidal frame for the mesh 7. Furthermore, it is provided that the screen cage 4 as a further mesh shape has a circular mesh 7, which is preferably arranged in the longitudinal direction of the antenna 1 above this. Furthermore, it is provided that there are at least two mesh sizes 9 for the individual stitches.
- the mesh size 9 changes within the extension of the single stitch 7.
- the mesh size 9 is defined as the distance between two opposite points on the self-contained loop 7.
- a maximum mesh size is smaller than 1/10 of the wavelength of the electromagnetic interference wave length 5 and / or a smallest mesh size is greater than 1/10 of the wavelength of the electromagnetic signal wave.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15714828T PL3132495T3 (pl) | 2014-04-16 | 2015-04-09 | Urządzenie do selektywnego pod względem długości fali ekranowania usytuowanej na statku anteny |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014105455.5A DE102014105455A1 (de) | 2014-04-16 | 2014-04-16 | Vorrichtung zur wellenlängenselektiven Abschirmung einer auf einem Schiff angeordneten Antenne |
| PCT/EP2015/057701 WO2015158597A1 (de) | 2014-04-16 | 2015-04-09 | Vorrichtung zur wellenlängenselektiven abschirmung einer auf einem schiff angeordneten antenne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3132495A1 true EP3132495A1 (de) | 2017-02-22 |
| EP3132495B1 EP3132495B1 (de) | 2022-02-23 |
Family
ID=52814996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15714828.9A Active EP3132495B1 (de) | 2014-04-16 | 2015-04-09 | Vorrichtung zur wellenlängenselektiven abschirmung einer auf einem schiff angeordneten antenne |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3132495B1 (de) |
| DE (1) | DE102014105455A1 (de) |
| ES (1) | ES2908201T3 (de) |
| PL (1) | PL3132495T3 (de) |
| WO (1) | WO2015158597A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11374646B2 (en) | 2017-05-09 | 2022-06-28 | Innovere Medical Inc. | Systems and devices for wireless communication through an electromagnetically shielded window |
| CN107665516A (zh) * | 2017-09-30 | 2018-02-06 | 四川民工加网络科技有限公司 | 一种工地使用定时定位考勤装置 |
| CN114421179B (zh) * | 2021-12-03 | 2026-04-28 | 贵州电网有限责任公司 | 用于安装5g天线的铁塔吸波网结构及几何尺寸确定方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3039100A (en) * | 1958-12-03 | 1962-06-12 | Trg Inc | Thin-wall radome utilizing irregularly spaced and curved conductive reinforcing ribs obviating side-lobe formation |
| US3154887A (en) * | 1959-12-04 | 1964-11-03 | Goodyear Aerospace Corp | Random pattern radome structure |
| FR2181577B1 (de) * | 1972-04-28 | 1974-07-26 | Bony Gilbert | |
| JPS58201406A (ja) * | 1982-05-20 | 1983-11-24 | Mitsubishi Heavy Ind Ltd | レ−ド−ム |
| FR2881884A1 (fr) * | 1987-01-22 | 2006-08-11 | Gerard Bony | "radome adapte pour la protection d'une antenne hyperfrequence" |
| JPH11248835A (ja) * | 1998-02-27 | 1999-09-17 | Mitsubishi Electric Corp | 電波レーダ装置 |
| DE19963003A1 (de) * | 1999-12-24 | 2001-06-28 | Bosch Gmbh Robert | Kraftfahrzeug-Radarsystem |
-
2014
- 2014-04-16 DE DE102014105455.5A patent/DE102014105455A1/de not_active Ceased
-
2015
- 2015-04-09 PL PL15714828T patent/PL3132495T3/pl unknown
- 2015-04-09 WO PCT/EP2015/057701 patent/WO2015158597A1/de not_active Ceased
- 2015-04-09 EP EP15714828.9A patent/EP3132495B1/de active Active
- 2015-04-09 ES ES15714828T patent/ES2908201T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014105455A1 (de) | 2015-10-22 |
| PL3132495T3 (pl) | 2022-06-20 |
| EP3132495B1 (de) | 2022-02-23 |
| WO2015158597A1 (de) | 2015-10-22 |
| ES2908201T3 (es) | 2022-04-28 |
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