EP0681340B1 - Radarabsorbierende Fensterverglasung oder Fassadenverkleidung - Google Patents
Radarabsorbierende Fensterverglasung oder Fassadenverkleidung Download PDFInfo
- Publication number
- EP0681340B1 EP0681340B1 EP95105001A EP95105001A EP0681340B1 EP 0681340 B1 EP0681340 B1 EP 0681340B1 EP 95105001 A EP95105001 A EP 95105001A EP 95105001 A EP95105001 A EP 95105001A EP 0681340 B1 EP0681340 B1 EP 0681340B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- arrangement according
- outer layer
- reflecting
- radar
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 10
- 230000005670 electromagnetic radiation Effects 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000002648 laminated material Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- 239000005336 safety glass Substances 0.000 claims 2
- 239000005329 float glass Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/007—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with means for controlling the absorption
Definitions
- the invention relates to a radar-absorbing arrangement for window glazing or facade cladding in double-layer construction with an electromagnetic one arranged in the area of the outer layer Radiation partially reflective layer and one in the area of the inner layer at a distance of about a quarter of the operating wavelength arranged further reflective layer.
- DE 40 08 660 A1 describes one based on the interference absorber principle Working radar absorbing arrangement for window glazing or Facade cladding in which the one arranged in the area of the inner layer reflective layer consists of a conductive vapor deposition.
- Known radar reflecting antenna, mesh or Slit structures created. These are two-dimensional structures whose Production and application to the substrate a specific Require effort.
- EP 0 583 557 Al is a window glazing in a double layer construction described according to the principle of the Jaumann absorber suppresses the reflection of incident electromagnetic radiation. It is in the outer pane instead of the known resistance layer an arrangement of parallel wires is provided. The reflection of the the radiation penetrating the glazing finds its way onto the inner pane by means of a radiation evaporated metal layer instead. With the technical dimensioning and production, however, there is the problem that in addition to the required precision and reproducibility of the wire inlays highly conductive internally arranged reflection layer under the same Precision requirements must be manufactured and installed.
- the utility model DE 89 15 902.0 U1 or EP 0 405 077 A1 is a facade structure become known for high-rise buildings, which in turn have a double-layer construction is manufactured and also on the principle of interference triggering incident electromagnetic radiation is absorbed.
- the resistance layer in particular is the cause of problems regarding reproducibility in production.
- the object is achieved in that in the area of Inner layer arranged reflective layer of mutually parallel electrically conductive fibers, which are in an orderly fashion geometric patterns are arranged.
- FIG. 1 shows a double-layer construction of a Double glazing.
- the outer pane 2 is evacuated or gas-filled space 4 is spaced from the inner pane 6.
- a facade cladding can also be designed in the same design be.
- the inner pane 6 is designed as a double pane, with between a layer 7 of parallel to the individual disks of the double disk extending fibers L is inserted.
- the outer and inner pane 2.6 can if necessary with optically or thermally effective coatings be provided.
- the coating 3 can for example be made of metal oxide.
- Coatings 5 and 8 of the inner pane 6 can also be applied if necessary. It is here however, note that these layers have very low conductivity have to the effectiveness of the electrically conductive conductor sections L to influence layer 7.
- the arrangement uses the functional principle of the Jaumann absorber, there must be two reflective layers, the distance between them essentially from the operating frequency of the incident electromagnetic Radiation R is dependent. As shown in Fig. 1, falls the electromagnetic radiation R first on the outer layer 1 of the Outer pane 2 or directly onto the outer pane 2. This is preferred exploited the natural reflection of the outer layer or disk. If this should not be sufficient, the reflectance can, for example can be increased by an evaporated metal layer 1.
- the second reflection plane is in the area by the reflective layer 7 the inner disc (s) 6 formed.
- the electrically effective part of the Layer 7 consists of parallel, wire-shaped electrical Fibers L, whose preferred direction depends on the polarization the electromagnetic radiation R incident at the installation site is set becomes. A certain proportion of the transmission T electromagnetic Radiation is tolerated.
- the thickness of the outer pane 2 is between 8 and 14 mm, that of the inner pane between 6 and 10 mm.
- the width of the space 4 is set in the range from 12 to 20 mm.
- the length the fiber L is chosen in the range between 5 and 80 cm.
- the distance d of two adjacent fibers L is approximately 10 to 40 mm, the width b a fiber is less than 0.5 mm.
- the dimensioning of the arrangement in These parameters determine the amplitude and the phase shift of the portion of the electromagnetic reflected on the layer 7 Radiation. This together with the reflection on the Outer pane 2 the intensity of the reflection suppression of the overall design.
- the resulting from the fibers L formed reflection plane a reflection intensity that one realized Resistance of approximately 120 to 180 ⁇ / ⁇ corresponds to a surface, whose position is at a greater distance from the outer pane 2 than the actual one Distance between the reflective layer 7 and the outer pane 2 is.
- the radar-absorbing arrangement according to the invention is not suitable only for window glazing, but in the same way also for similar assembled cladding.
- window glasses instead of the window glasses in Construction known non-conductive building materials such as building ceramics, fiber cement or laminated material used. Thermally effective insulating materials are also suitable.
- the location and arrangement of the fibers are within of the described designs easily match those given at the installation site To adapt conditions. Furthermore, an adjustment can also be made done that the required distance to the reflective surface of the Outer layer 2 by the phase-related shift in the reflection of the reflective layer 7 is adjustable adjustable.
- the arrangement of the fibers L acts in the specified dimensions not like a construction with flat, frequency-selective effective Radiation elements, but the entirety of the fibers L produces the reflection behavior a homogeneous layer with defined surface conductivity, that works in a virtual place.
- the arrangement with window glazing the advantage of high optical transparency on.
Landscapes
- Laminated Bodies (AREA)
- Building Environments (AREA)
Description
- Fig. 1
- einen Schnitt durch eine Isolierverglasung mit zwei Scheiben;
- Fig. 2
- eine Variante einer radarabsorbierenden Doppelschichtanordnung.
Claims (12)
- Radarabsorbierende Anordnung für eine Fensterverglasung oder Fassadenverkleidung in Doppelschichtbauweise mit einer im Bereich der Außenschicht angeordneten elektromagnetische Strahlung teilweise reflektierenden Schicht und einer im Bereich der Innenschicht im Abstand von etwa einem Viertel der Betriebswellenlänge angeordneten weiteren reflektierenden Schicht, dadurch gekennzeichnet, daß die im Bereich der Innenschicht (6) angeordnete reflektierende Schicht (7) aus parallel zueinander liegenden elektrisch leitfähigen Fasern besteht, die in einem geordneten geometrischen Muster angeordnet sind.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die elektrisch leitfähigen Fasern (L) in einem textilen Gewebe eingearbeitet sind.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die elektrisch leitfähigen Fasern (L) auf einer Kunststoffolie aufgebracht sind.
- Anordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die reflektierende Schicht (7) auf einer Oberfläche (5) der Innenschicht (6) angebracht ist.
- Anordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Innenschicht (6) als Doppelschicht ausgeführt ist, in der die reflektierende Schicht (7) angeordnet ist.
- Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innen- und/oder Außenschicht (2,6) aus Floatglas bestehen.
- Anordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Innenschicht (6) und/oder Außenschicht (2) als Verbundsicherheitsglas ausgeführt ist.
- Anordnung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die reflektierende Schicht (7) im Verbundsicherheitsglas angeordnet ist.
- Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innen- und/oder Außenschicht (2,6) aus einem baukeramischen Material besteht.
- Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innen- und/oder Außenschicht (2,6) aus Faserzement besteht.
- Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innen- und/oder Außenschicht (2,6) aus einem Schichtpreß-Werkstoff besteht.
- Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innen- und/oder Außenschicht (2,6) aus einem Isolierdämmstoff besteht.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4416165 | 1994-05-06 | ||
| DE4416165A DE4416165C2 (de) | 1994-05-06 | 1994-05-06 | Radarabsorbierende Anordnung für eine Fensterverglasung oder Fassadenverkleidung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0681340A1 EP0681340A1 (de) | 1995-11-08 |
| EP0681340B1 true EP0681340B1 (de) | 1999-10-27 |
Family
ID=6517568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95105001A Expired - Lifetime EP0681340B1 (de) | 1994-05-06 | 1995-04-04 | Radarabsorbierende Fensterverglasung oder Fassadenverkleidung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0681340B1 (de) |
| DE (2) | DE4416165C2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19707585A1 (de) * | 1997-02-26 | 1998-09-03 | Bosch Gmbh Robert | Gehäuse mit radarabsorbierenden Eigenschaften |
| DE19756718B4 (de) * | 1997-12-19 | 2004-03-25 | Eads Deutschland Gmbh | Fassadenplatte und Fassade für eine Gebäudewand |
| EP1039577B1 (de) * | 1999-03-26 | 2005-07-20 | EADS Deutschland GmbH | Radarabsorbierende Verbundglasscheibe |
| DE10018276A1 (de) * | 2000-04-13 | 2001-10-25 | Saint Gobain Sekurit D Gmbh | Verbundscheibe |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726980A (en) * | 1986-03-18 | 1988-02-23 | Nippon Carbon Co., Ltd. | Electromagnetic wave absorbers of silicon carbide fibers |
| DE3918383A1 (de) * | 1989-06-06 | 1990-12-20 | Messerschmitt Boelkow Blohm | Fassadenaufbau von hochbauten |
| GB8918859D0 (en) * | 1989-08-18 | 1989-09-27 | Pilkington Plc | Electromagnetic shielding panel |
| DE4006352A1 (de) * | 1990-03-01 | 1991-09-05 | Dornier Luftfahrt | Radarabsorber |
| DE4008660A1 (de) * | 1990-03-17 | 1991-09-19 | Messerschmitt Boelkow Blohm | Fensterverglasung fuer hochbauten |
| DE4103458C2 (de) * | 1991-02-06 | 1994-09-01 | Flachglas Ag | Optisch transparentes Verglasungselement mit niedrigem Reflexionsgrad für Radarstrahlung und hohem Reflexionsgrad für IR-Strahlung |
| DE4227032C1 (de) * | 1992-08-14 | 1993-09-30 | Deutsche Aerospace | Fensterverglasung |
-
1994
- 1994-05-06 DE DE4416165A patent/DE4416165C2/de not_active Expired - Fee Related
-
1995
- 1995-04-04 DE DE59507115T patent/DE59507115D1/de not_active Expired - Lifetime
- 1995-04-04 EP EP95105001A patent/EP0681340B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4416165C2 (de) | 1998-10-15 |
| DE59507115D1 (de) | 1999-12-02 |
| EP0681340A1 (de) | 1995-11-08 |
| DE4416165A1 (de) | 1995-11-09 |
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