GB9115970D0 - Frequency selective radar absorbent structure - Google Patents
Frequency selective radar absorbent structureInfo
- Publication number
- GB9115970D0 GB9115970D0 GB9115970A GB9115970A GB9115970D0 GB 9115970 D0 GB9115970 D0 GB 9115970D0 GB 9115970 A GB9115970 A GB 9115970A GB 9115970 A GB9115970 A GB 9115970A GB 9115970 D0 GB9115970 D0 GB 9115970D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- thickness
- absorbent structure
- frequency selective
- radar absorbent
- 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
- 230000002745 absorbent Effects 0.000 title 1
- 239000002250 absorbent Substances 0.000 title 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
- Laminated Bodies (AREA)
Abstract
The structure 10 has a layered construction. It includes a conducting layer 12, a central layer 14 of thickness h and a patterned conducting layer 16 of thickness g, these layers being successively disposed. The patterned layer 16 has an array of slots such as 18. In the central layer 14, the product of propagation loss/unit length and thickness h lies in the range 0.005 to 0.1. The structure is able to absorb incident energy by means of the excitation of surface waves in the substrate layer 14. This enables the dielectric layer to be thin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9115970A GB9115970D0 (en) | 1991-07-24 | 1991-07-24 | Frequency selective radar absorbent structure |
| GB9213786A GB2336472B (en) | 1991-07-24 | 1992-06-22 | Frequency selective radar absorbent structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9115970A GB9115970D0 (en) | 1991-07-24 | 1991-07-24 | Frequency selective radar absorbent structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB9115970D0 true GB9115970D0 (en) | 1999-08-11 |
Family
ID=10698890
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9115970A Ceased GB9115970D0 (en) | 1991-07-24 | 1991-07-24 | Frequency selective radar absorbent structure |
| GB9213786A Expired - Lifetime GB2336472B (en) | 1991-07-24 | 1992-06-22 | Frequency selective radar absorbent structure |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9213786A Expired - Lifetime GB2336472B (en) | 1991-07-24 | 1992-06-22 | Frequency selective radar absorbent structure |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9115970D0 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3739230B2 (en) | 1999-04-26 | 2006-01-25 | 株式会社日立製作所 | High frequency communication equipment |
| GB2404087A (en) * | 2003-07-18 | 2005-01-19 | Qinetiq Ltd | Electromagnetic radiation absorber |
| EP1720396A4 (en) | 2004-02-27 | 2007-12-26 | Mitsubishi Gas Chemical Co | Radio wave absorber and radio wave absorber manufacturing method |
| JP4461970B2 (en) | 2004-09-06 | 2010-05-12 | 三菱瓦斯化学株式会社 | Radio wave absorber |
| US8564472B2 (en) * | 2005-10-21 | 2013-10-22 | Nitta Corporation | Sheet member for improving communication, and antenna device and electronic information transmitting apparatus provided therewith |
| GB2473020B (en) | 2009-08-27 | 2012-02-01 | Vestas Wind Sys As | Wind turbine composite structures |
| FR3057400B1 (en) * | 2016-10-10 | 2018-11-23 | Abel Franco Garcia | MULTIDEPHASEUR DEVICE FOR ELECTROMAGNETIC WAVES OPERATING IN PARTICULAR THREE DIMENSIONALLY. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3887920A (en) * | 1961-03-16 | 1975-06-03 | Us Navy | Thin, lightweight electromagnetic wave absorber |
| FR2450509A1 (en) * | 1979-03-02 | 1980-09-26 | Thomson Csf | POLARIZER DEVICE FOR MICROWAVE ANTENNA |
-
1991
- 1991-07-24 GB GB9115970A patent/GB9115970D0/en not_active Ceased
-
1992
- 1992-06-22 GB GB9213786A patent/GB2336472B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB9213786D0 (en) | 1999-08-11 |
| GB2336472B (en) | 2000-03-29 |
| GB2336472A (en) | 1999-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AT | Applications terminated before publication under section 16(1) |