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公开(公告)号:US5283592A
公开(公告)日:1994-02-01
申请号:US623148
申请日:1990-12-05
CPC分类号: H01Q1/002 , B64G1/54 , H01Q1/422 , Y10S343/02
摘要: An RF-transparent sunshield membrane covers an antenna reflector such as a parabolic dish. The blanket includes a single dielectric sheet of polyimide film 1/2-mil thick. The surface of the film facing away from the reflector is coated with a transparent electrically conductive coating such as vapor-deposited indium-tin oxide. The surface of the film facing the reflector is reinforced by an adhesively attached polyester or glass mesh, which in turn is coated with a white paint. In a particular embodiment of the invention, polyurethane paint is used. In another embodiment of the invention, a layer of paint primer is applied to the mesh under a silicone paint, and the silicone paint is cured after application for several days at room temperature to enhance adhesion to the primer.
摘要翻译: RF透明防晒膜覆盖诸如抛物面盘的天线反射器。 毯子包括1/2密耳厚的聚酰亚胺薄膜的单个介电片。 膜的远离反射体的表面涂覆有诸如气相沉积的氧化铟锡的透明导电涂层。 面向反射器的膜的表面通过粘附的聚酯或玻璃网加强,其又涂覆有白色涂料。 在本发明的一个具体实施方案中,使用聚氨酯涂料。 在本发明的另一个实施方案中,将一层漆底漆涂覆在硅氧烷涂料下的网状物上,并且在室温下施用数天后使硅氧烷涂料固化以增强与底漆的粘合性。
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公开(公告)号:US5373306A
公开(公告)日:1994-12-13
申请号:US116314
申请日:1993-09-03
申请人: Leo J. Amore , Susan L. Marr , Theodore A. Harris, Jr. , Alexander Bogorad , Charles K. Bowman, Jr.
发明人: Leo J. Amore , Susan L. Marr , Theodore A. Harris, Jr. , Alexander Bogorad , Charles K. Bowman, Jr.
CPC分类号: H01Q1/002 , H01Q1/42 , Y10S343/02
摘要: An RF-transparent sunshield membrane covers an antenna reflector such as a parabolic dish. The membrane includes a single dielectric sheet of polyimide film 1 mil thick. The surface of the film facing away from the reflector is coated with a layer of semiconductor material such as vapor-deposited germanium having a thickness in the range of 200 .ANG. to 600 .ANG.. In another embodiment of the invention, the surface of the film facing the reflector may be reinforced by an adhesively attached polyester or glass fiber mesh.
摘要翻译: RF透明防晒膜覆盖诸如抛物面盘的天线反射器。 膜包括1密耳厚的聚酰亚胺膜的单个电介质片。 膜的远离反射体的表面涂覆有一层半导体材料,例如气相沉积的锗,其厚度在200安培至600安培的范围内。 在本发明的另一个实施例中,面向反射器的膜的表面可以通过粘附的聚酯或玻璃纤维网来增强。
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