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公开(公告)号:US5061938A
公开(公告)日:1991-10-29
申请号:US271036
申请日:1988-11-14
申请人: Rudolf Zahn , Hans W. Schroeder , Christian Borgwardt , Albert Braig , Gunter Helwig , Joachim Boukamp , Oswald Bender , Chung-chi Lin , Werner Scherber
发明人: Rudolf Zahn , Hans W. Schroeder , Christian Borgwardt , Albert Braig , Gunter Helwig , Joachim Boukamp , Oswald Bender , Chung-chi Lin , Werner Scherber
CPC分类号: H01Q9/0407 , H01Q13/18
摘要: A microstrip antenna has an electrically conductive base plate carrying an electrically insulating substrate on top of which are a plurality of radiating patches, the improvement comprises establishing a relatively large spacing between the electrically insulating substrate and the base plate at lateral dimensions larger than lateral dimensions of the patches and in the vicinity of the patches and either through local elevations of the insulating substrate or by local indents in the base plate being vertically aligned with the patches.
摘要翻译: 微带天线具有承载电绝缘基板的导电基板,其上面是多个辐射贴片,其改进包括在电绝缘基板和基板之间建立相对大的间隔,其横向尺寸大于 贴片和贴片附近,以及通过绝缘衬底的局部高度或基板中的局部凹痕与贴片垂直对准。
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公开(公告)号:US4987425A
公开(公告)日:1991-01-22
申请号:US271037
申请日:1988-11-14
申请人: Rudolf Zahn , Hans W. Schroeder , Christian Borgwardt , Albert Braig , Gunter Helwig , Kay Dittrich
发明人: Rudolf Zahn , Hans W. Schroeder , Christian Borgwardt , Albert Braig , Gunter Helwig , Kay Dittrich
CPC分类号: H01Q1/28 , H01Q21/0087 , H01Q21/065
摘要: Carrying structure of an active antenna in the aerospace industry uses basically fiber reinforced synthetic material in which heat conductive elements and/or elements conducting electromagnetic waves (electro, optic) are integrated into that support structure for the antenna.
摘要翻译: 航空航天工业中的有源天线的承载结构主要使用纤维增强的合成材料,其中传导电磁波(电,光学)的导热元件和/或元件被集成到天线的支撑结构中。
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公开(公告)号:US4482882A
公开(公告)日:1984-11-13
申请号:US445656
申请日:1982-11-30
CPC分类号: G01N27/225 , G01N27/121
摘要: A moisture sensor comprises a moisture-sensitive layer formed from the oxide of highly resistive porous low density tantalum on a moisture-insensitive substrate. Between the substrate and the moisture-sensitive tantalum oxide layer there is a base electrode of an anodically oxidizable metal, preferably tantalum, of a density higher than the density of the low density tantalum from which the tantalum oxide layer is formed. A covering electrode partially covering the tantalum oxide layer has windows through which the water vapor containing medium can penetrate into the moisture-sensitive tantalum oxide layer. The inactive regions of the tantalum oxide layer disposed below the windows are removed to increase the rate of response.
摘要翻译: 湿度传感器包括由不透湿基底上的高阻力多孔低密度钽的氧化物形成的湿度敏感层。 在基板和湿敏钽氧化物层之间,存在密度高于形成氧化钽层的低密度钽的密度的阳极可氧化金属(优选钽)的基极。 部分覆盖钽氧化物层的覆盖电极具有窗口,含水蒸汽的介质可以穿过该窗口可渗透到湿敏钽氧化物层中。 去除设置在窗户下方的氧化钽层的非活性区域以增加响应速率。
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