GB1074894A - Improvements in or relating to radar camouflage layers - Google Patents
Improvements in or relating to radar camouflage layersInfo
- Publication number
- GB1074894A GB1074894A GB2692357A GB2692357A GB1074894A GB 1074894 A GB1074894 A GB 1074894A GB 2692357 A GB2692357 A GB 2692357A GB 2692357 A GB2692357 A GB 2692357A GB 1074894 A GB1074894 A GB 1074894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- wavelength
- aug
- camouflage
- layer
- 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
Links
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
- H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
Landscapes
- Laminated Bodies (AREA)
- Aerials With Secondary Devices (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
1,074,894. Radio wave absorbers. ELTRO G.m.b.H. Aug. 26, 1957 [Aug. 31, 1956], No. 26923/57. Heading H4A. A radar camouflage covering, for aircraft landing surfaces or aircraft carrier decks, consists of a number of superimposed, thin layers of synthetic substances secured, by adhesive to the surface. The upper layer is hard and may withstand shock, abrasion, weather and seawater. A phase, changing layer may be incorporated in which titanates, carbonates, silicates, sulphates or phosphates are used as fillers and effects a phase displacement of 180 degrees with respect to the wave reflected from the surface. The layers may be formed of Dellathol, chloropred and materials have the Registered Trade Marks " Igelit," " Desmodur " " Desmophen " and " Buna " containing iron or aluminium powder, ferrites, magnesium carbonate, zinc oxide, sulphur and powdered carbon. They may be pressed into position with a die having an indented surface the depth of which is related to the high frequency wavelength range to be suppressed. If attenuation above a wavelength of 10 cm. is required a conducting layer is added of a thickness calculated from the formula where # = wavelength, #=dielectric constant, Á= permeability. Camouflage in the visible range is effected by dyes mixed in the upper layers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1956D0023689 DE977525C (en) | 1956-08-31 | 1956-08-31 | Interference absorber for radio waves as a radar camouflage for runways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1074894A true GB1074894A (en) | 1967-07-05 |
Family
ID=7037909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2692357A Expired GB1074894A (en) | 1956-08-31 | 1957-08-26 | Improvements in or relating to radar camouflage layers |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE977525C (en) |
| FR (1) | FR1482805A (en) |
| GB (1) | GB1074894A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163296A (en) * | 1977-09-01 | 1986-02-19 | Elliott Bros | Reducing radar reflections |
| GB2205275A (en) * | 1981-08-11 | 1988-12-07 | Plessey Co Ltd | Composite materials |
| US5225284A (en) * | 1989-10-26 | 1993-07-06 | Colebrand Limited | Absorbers |
| GB2400750A (en) * | 1987-10-09 | 2004-10-20 | Colebrand Ltd | Microwave absorbing systems |
| RU1841302C (en) * | 1973-09-27 | 2022-05-18 | Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" | Radar absorbing material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977523C (en) * | 1954-05-10 | 1966-11-24 | Eltro G M B H & Co Ges Fuer St | Interference absorber for radio waves |
-
1956
- 1956-08-31 DE DE1956D0023689 patent/DE977525C/en not_active Expired
-
1957
- 1957-08-26 FR FR746146A patent/FR1482805A/en not_active Expired
- 1957-08-26 GB GB2692357A patent/GB1074894A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1841302C (en) * | 1973-09-27 | 2022-05-18 | Акционерное общество "Центральный научно-исследовательский радиотехнический институт имени академика А.И. Берга" | Radar absorbing material |
| GB2163296A (en) * | 1977-09-01 | 1986-02-19 | Elliott Bros | Reducing radar reflections |
| GB2205275A (en) * | 1981-08-11 | 1988-12-07 | Plessey Co Ltd | Composite materials |
| GB2205275B (en) * | 1981-08-11 | 1989-06-28 | Plessey Co Ltd | Composite materials. |
| GB2400750A (en) * | 1987-10-09 | 2004-10-20 | Colebrand Ltd | Microwave absorbing systems |
| GB2400750B (en) * | 1987-10-09 | 2005-02-09 | Colebrand Ltd | Microwave absorbing systems |
| US5225284A (en) * | 1989-10-26 | 1993-07-06 | Colebrand Limited | Absorbers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE977525C (en) | 1966-11-24 |
| FR1482805A (en) | 1967-06-02 |
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