Adaptively ablatable radome

Communications: radio wave antennas – Antennas – With housing or protective covering

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Details

244160, 2505151, 252478, H01Q 142

Patent

active

054574714

ABSTRACT:
A radome useful with high-speed guided missiles has an inner conical shell made of a strong, high temperature resistant material transparent to radiant energy in the operative frequency range of a sensor mounted inside the shell. An outer ablative layer covers the exterior surface of the shell. This layer is made of a material which is also transparent to radiant energy in the sensor frequency range and which melts or sublimes and displaces from the shell at a predetermined elevated temperature and/or velocity during high-speed flight. The thickness of the ablative layer is selected so that it compensates for increased thickness and/or refraction resulting from thermal expansion of the shell, thereby minimizing guidance errors.

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