Chaff material for scattering electromagnetic radiation used in aircraft as a protective measure against guided missiles consists of conducting fibers

Chaff material for scattering electromagnetic radiation in the region of 0.1-1000 GHz (wavelength lambda 3 m - 3 mm) consists of conducting fibers having a ratio of fiber radius r to wavelength lambda of not more than 10->3> and a ratio of fiber length L to fiber diameter D of at least 100. Pr...

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Bibliographic Details
Main Authors DOCHNAHL, AXEL, KOCH, ERNSTRISTIAN
Format Patent
LanguageEnglish
German
Published 14.08.2002
Edition7
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Summary:Chaff material for scattering electromagnetic radiation in the region of 0.1-1000 GHz (wavelength lambda 3 m - 3 mm) consists of conducting fibers having a ratio of fiber radius r to wavelength lambda of not more than 10->3> and a ratio of fiber length L to fiber diameter D of at least 100. Preferred Features: The fiber material is made from carbon or conducting metallic fibers or has a conducting metallic coating, preferably made from nickel, tungsten, iron, aluminum or silver. The fibers are coated with a metal layer which is applied using a CVD, especially a MOCVD process. Düppel sollen eine breitbandige Wirkung über den gesamten Radarfrequenzbereich von 0,1-1000 GHz zeigen. Die Düppel bestehen aus einem einheitlichen Material in Form von leitfähigen oder nichtleitenden Fasern mit einer leitfähigen Beschichtung.
Bibliography:Application Number: DE2001102599