EP3120415A1 - Vorrichtung zur reduktion der effektiven radarrückstrahlfläche - Google Patents
Vorrichtung zur reduktion der effektiven radarrückstrahlflächeInfo
- Publication number
- EP3120415A1 EP3120415A1 EP15709645.4A EP15709645A EP3120415A1 EP 3120415 A1 EP3120415 A1 EP 3120415A1 EP 15709645 A EP15709645 A EP 15709645A EP 3120415 A1 EP3120415 A1 EP 3120415A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- angle
- reflection
- radar
- reflection means
- main extension
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G13/00—Other offensive or defensive arrangements on vessels; Vessels characterised thereby
- B63G13/02—Camouflage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/28—Arrangement of offensive or defensive equipment
- B63G8/34—Camouflage
-
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G13/00—Other offensive or defensive arrangements on vessels; Vessels characterised thereby
- B63G13/02—Camouflage
- B63G2013/027—Camouflage using stealth design, i.e. superstructures, hulls, or other vessel's components shaped or constructed for minimizing reflection of radar or sonar beams, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H3/00—Camouflage, i.e. means or methods for concealment or disguise
Definitions
- the present invention is based on a device for reducing the effective radar reflecting surface of a naval ship, which has a reflection means for the reflection of radar beams.
- the Radarortung based on the principle that radar waves are radiated as primary waves from a radar device and reflected from the object to be located, and are radiated back as secondary waves in the form of radar echoes. The secondary waves are detected by the radar device and from this information on the distance of the object, the direction of the object and possibly on the size and contour of the object are obtained.
- the Radarortung is now complicated by the fact that fewer radar echoes are reflected in the direction of the local radar. It is then said that the effective retroreflective surface (RCS) or the radar signature is reduced.
- Cladding elements are constructed such that they absorb incident radar waves and thus the generation of radar echoes is suppressed. Such cladding elements are relatively expensive and expensive.
- the document WO 2005/020 373 A1 also discloses a cladding element for reducing the radar reflecting surface, which consists of an irregular grid of individual radar-reflecting elements which are arranged at an angle in order to reflect the incident radar waves in various spatial directions and thus to provide a clear radar echo prevention.
- a disadvantage of this solution is that no smooth surface can be realized and there is a considerable space requirement.
- RCS radar reflecting surface
- a radar reflecting surface (RCS) of a naval vessel comprising a cladding panel mountable to ships' structures or cargo of the naval vessel, the cladding panel permeable to radar beams, the apparatus further comprising reflecting means for reflecting radar beams, and wherein the reflecting means is embedded in the cladding panel and at least partially opposite one
- Main extension plane of the cladding plate is inclined.
- the device according to the invention has the advantage over the prior art that the reflection means is integrated in the cladding panel, so that the surface of the cladding panel does not comprise any areas with an orientation that is inclined with respect to the main extension plane. In this way, a neutral or usual external
- the reflection means is designed in particular in such a way that radar rays incident on the reflection means along a direction of incidence substantially perpendicular to the main extension plane are reflected by the reflection means in a direction of departure deviating from the anti-parallel direction of incidence.
- the integration of the reflection means in the cladding panel also has the advantage that the device can be retrofitted in a simple and flexible manner, since the cladding panel for this only needs to be mounted on the appropriate ship structures and / or transport goods. Also for transport goods in the form of
- Reshaping of the ship's geometry or cargo geometry for example in objects with exclusively spherical surfaces, can thus advantageously be dispensed with.
- the reflection means has a sawtooth profile.
- a reflection means can be provided in a particularly efficient manner, in which the reflection surfaces are always inclined relative to the main extension plane and thus a reflection of incident radar beams is suppressed directly back to the transmitter.
- the sawtooth profile is preferably realized in that the reflection means is composed of a plurality of first and second reflection slopes, which
- the first and second reflection slopes are thus
- first angle between 5 and 60 degrees and particularly preferably between 10 and 30 is very particularly preferably between 15 and 25 degrees and / or that the second angle between 60 and 100 degrees and particularly preferably between 70 and 90 is very particularly preferred at substantially 85 degrees.
- the cladding panel comprises a substantially rigid sandwich panel.
- the cladding panel is thus comparatively light and can be produced inexpensively.
- the sandwich panel preferably has two cover layers and a core arranged between the two cover layers.
- the cover layers preferably each comprise glass fiber reinforced plastic, while the core preferably comprises a foam core.
- the reflection means is embedded in particular in the core.
- the surface of the cladding panel can thus be adapted to the usual visual appearance of the naval ship. Due to the lightweight construction of the
- Panel panel can also cover the panel to moving parts, such as
- the reflection means comprises a conductive foil. It is conceivable, for example, that the reflection means comprises a metal insert, a woven fabric and / or a carbon fiber-reinforced plastic insert.
- the reflection means comprises a metal insert, a woven fabric and / or a carbon fiber-reinforced plastic insert.
- Reflectance of the reflection means achieved and on the other hand a cost-effective and simple production.
- Another object of the present invention is a naval ship having a ship body or cargo to which the device of the invention is mounted.
- the ship superstructures and / or arranged on the ship transport goods are covered with the device according to the invention, so that the radar echo of the naval ship is reduced and the naval vessel is thus much worse to locate by means of radar.
- FIG. 1 shows a schematic sectional view of a device according to an exemplary embodiment of the present invention.
- Figure 2 shows a schematic partial view of a naval ship with a
- FIG. 1 shows a schematic sectional view of a device 1 for reducing the effective radar reflecting surface (RCS) of a naval vessel 14 according to an exemplary embodiment of the present invention.
- RCS radar reflecting surface
- the device 1 has a cladding panel 2, which is in the form of a rigid or semi-rigid sandwich panel.
- the cladding panel 2 comprises two cover layers 3 made of glass fiber reinforced plastic (GRP) and a core 4, which is arranged between the two cover layers 3.
- the core 4 comprises a foam core, preferably a polyurethane foam (PUR).
- PUR polyurethane foam
- the combination of the cover layers 3 with the foam core results in a high load-bearing capacity and a high degree of rigidity for the trim panel 2, with at the same time a very low weight.
- the cladding panel 2 for radar beams 6 is permeable, so that from the flat surface of the cladding panel 2, which extends along a main extension plane 7, no significant
- the trim panel 2 is intended to be mounted on ship superstructures (17) of the naval ship 14 or on goods to be transported (18) which are transported on deck of the naval ship 14 in order to reduce its effective Radar Cross Section (RCS) (see FIG 2). Due to the low weight of the cladding panel 2, the assembly is considerably simplified.
- the plate-like shape also allows easy installation or retrofitting on flat surfaces. An attachment to mounting openings, flaps or in niches is feasible.
- the smooth surface of the cladding panel 2 also allows a coating or coloring of the
- Cladding panel 2 which is adapted to the usual visual appearance of a naval ship 14. In this way, the trim panel 2 can be performed for example in marine gray.
- the cladding panel 2 further comprises a reflection means 5, which is integrated or glued into the foam core 4.
- the reflection means 5 is formed in the form of a metal insert, whereby radar beams 6 are reflected by the reflection means 5.
- the reflection means 5 is in the form of a sawtooth profile or stepped, so that the Surface subregions of the reflection means 5 always opposite to the
- the reflection means 5 comprises a fabric (gauze) and / or a carbon fiber-reinforced
- the reflection means 5 is constructed from a plurality of first and second reflection slopes 8, 9, which alternately parallel to the main extension plane 7
- Main extension direction 10 of the reflection means 5 are arranged.
- the reflection slopes 8, 9, which are inclined with respect to the main extension plane 7, ensure that radar beams 6 incident on the reflection means 5 are emitted along a direction of incidence substantially perpendicular to the main extension plane 7
- Reflection means 5 in a deviating from the anti-parallel direction of incidence
- Device 1 provided naval vessel 14 is difficult. The effective
- Radar reflecting surface (RCS) of the naval vessel 14 is thus significantly reduced.
- FIG. 2 shows a schematic partial view of a naval vessel 14 with a device 1 according to the exemplary embodiment of the present invention.
- the device 1 corresponds to the device 1 explained above with reference to FIG. 1 for reducing the effective radar reflecting surface (RCS) of a naval vessel 14.
- RCS radar reflecting surface
- a portion of the hull 15, and the deck 16 of the naval vessel 14 is shown.
- the cladding panels 2 are mounted on vertical surfaces of Schiffsaubauten 17 and mounted on deck 16 transport goods 18 to the Do not reflect incident radar beams from radar sources 13 other ships back towards these radar sources 13, but to throw in other spatial directions and thus to complicate the Radarortung the naval vessel 14.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103601.8A DE102014103601A1 (de) | 2014-03-17 | 2014-03-17 | Vorrichtung zur Reduktion der effektiven Radarrückstrahlfläche |
PCT/EP2015/054372 WO2015139943A1 (de) | 2014-03-17 | 2015-03-03 | Vorrichtung zur reduktion der effektiven radarrückstrahlfläche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3120415A1 true EP3120415A1 (de) | 2017-01-25 |
Family
ID=52672243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15709645.4A Ceased EP3120415A1 (de) | 2014-03-17 | 2015-03-03 | Vorrichtung zur reduktion der effektiven radarrückstrahlfläche |
Country Status (6)
Country | Link |
---|---|
US (1) | US10173760B2 (de) |
EP (1) | EP3120415A1 (de) |
KR (1) | KR101934172B1 (de) |
AU (1) | AU2015233788B2 (de) |
DE (1) | DE102014103601A1 (de) |
WO (1) | WO2015139943A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015202551A1 (de) | 2015-02-12 | 2016-08-18 | Thyssenkrupp Ag | Faltbarer RCS Behälter |
EP3992073B1 (de) * | 2020-10-29 | 2023-06-07 | Gabler Maschinenbau GmbH | Ausfahrgerät für ein unterseeboot |
KR102556076B1 (ko) * | 2021-07-08 | 2023-07-17 | 주식회사 엠에스엘테크놀로지 | 헬리콥터 착함 지원 시스템 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100045181A (ko) * | 2008-10-23 | 2010-05-03 | 한국해양연구원 | 경사요소평판 및 수직요소평판의 연속적 배열로써 형상화된반사판을 이용한 레이더 반사 신호 저감용 복합재료 평면 판넬 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE758660A (fr) * | 1969-11-13 | 1971-05-10 | Hein Lehmann Ag | Revetement influencant le reperage par radar |
US4708757A (en) * | 1986-07-21 | 1987-11-24 | Guthrie Walker L | Method of forming corrugated panel |
SE8603522D0 (sv) * | 1986-08-21 | 1986-08-21 | Hb Radicool Research & Dev | Banformigt material for kamouflage mot elektromagnetisk stralning |
DE3716291C1 (de) * | 1987-05-15 | 1999-06-02 | Daimler Benz Aerospace Ag | Fahrzeug-Panzerung |
JP2955963B2 (ja) * | 1992-03-16 | 1999-10-04 | 株式会社フジタ | 電波反射制御ガラス |
US5288538A (en) * | 1992-12-16 | 1994-02-22 | Reynolds Metals Company | Expandable honeycomb core structural member |
JPH0974296A (ja) * | 1995-09-05 | 1997-03-18 | Ohbayashi Corp | 電波障害を低減する壁構造 |
AT739U2 (de) * | 1995-10-18 | 1996-04-25 | Adolf Jun Jandl | Plattenförmiges bauelement |
DE19752137A1 (de) * | 1997-11-25 | 1999-08-05 | Daimler Chrysler Aerospace | Verfahren zur Herstellung eines Kernelementes |
AUPQ189499A0 (en) * | 1999-07-28 | 1999-08-19 | Tenix Defence Systems Pty Ltd | Improvements in or relating to vehicles |
DE19955608C2 (de) * | 1999-11-19 | 2003-01-30 | Dornier Gmbh | Infrarot-Tarnvorrichtung |
US7366472B2 (en) * | 2000-11-07 | 2008-04-29 | Al Messano | Technology for creating a RF radiation-free environment |
US20060169930A1 (en) * | 2003-08-21 | 2006-08-03 | Butler Michael M | Plane elements for the absorption or reduction of the reflection of electromagnetic waves |
DE102004025647B4 (de) * | 2004-05-26 | 2008-03-27 | Eads Deutschland Gmbh | Einrichtung zum Tarnen spekular reflektierender Oberflächen |
US20080236077A1 (en) * | 2007-03-27 | 2008-10-02 | O'reilly Sean | Wall paneling material |
KR101018071B1 (ko) * | 2008-10-23 | 2011-03-02 | 한국해양연구원 | 레이더 반사 신호 저감용 반사판의 형상화 방법 |
GB201117058D0 (en) * | 2011-10-04 | 2011-11-16 | Qinetiq Ltd | Infrared transparent film |
-
2014
- 2014-03-17 DE DE102014103601.8A patent/DE102014103601A1/de not_active Withdrawn
-
2015
- 2015-03-03 WO PCT/EP2015/054372 patent/WO2015139943A1/de active Application Filing
- 2015-03-03 AU AU2015233788A patent/AU2015233788B2/en not_active Ceased
- 2015-03-03 US US15/126,374 patent/US10173760B2/en not_active Expired - Fee Related
- 2015-03-03 EP EP15709645.4A patent/EP3120415A1/de not_active Ceased
- 2015-03-03 KR KR1020167025086A patent/KR101934172B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100045181A (ko) * | 2008-10-23 | 2010-05-03 | 한국해양연구원 | 경사요소평판 및 수직요소평판의 연속적 배열로써 형상화된반사판을 이용한 레이더 반사 신호 저감용 복합재료 평면 판넬 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015139943A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2015233788B2 (en) | 2018-05-31 |
KR101934172B1 (ko) | 2018-12-31 |
AU2015233788A1 (en) | 2016-09-01 |
KR20160133443A (ko) | 2016-11-22 |
US20170088243A1 (en) | 2017-03-30 |
WO2015139943A1 (de) | 2015-09-24 |
DE102014103601A1 (de) | 2015-09-17 |
US10173760B2 (en) | 2019-01-08 |
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