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radar-absorbing material

   Also found in: Acronyms 0.01 sec.
radar-absorbing material [′rā‚där əb‚sȯrb·iŋ mə‚tir·ē·əl]
(materials)
A material that is designed to reduce the reflection of electromagnetic radiation by a conducting surface in the frequency range from approximately 100 megahertz to 100 gigahertz.


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By 2000, it was flight testing an improved magnetic radar-absorbing material known as Alternative High-Frequency Material (AHFM).
Experts say the whole craft is probably covered with radar-absorbing materials, and they speculate that its hot jet engines are encased in the wing to limit the emissionof detectable infrared radiation and shield the metal from radar.
To avoid radar reflections, the engine face has been hidden by special inlet guide vanes that have been treated with radar-absorbing materials (RAM) and shaped to cause radar beams to make multiple bounces, including onto the air-duct walls.
 
 
 
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