CN113346218B - 一种基于sisl结构的高增益5g缝隙耦合太阳能天线 - Google Patents

一种基于sisl结构的高增益5g缝隙耦合太阳能天线 Download PDF

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CN113346218B
CN113346218B CN202110446936.7A CN202110446936A CN113346218B CN 113346218 B CN113346218 B CN 113346218B CN 202110446936 A CN202110446936 A CN 202110446936A CN 113346218 B CN113346218 B CN 113346218B
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闫宁宁
季传胜
罗宇
马凯学
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Abstract

本发明公开一种基于SISL结构的高增益5G缝隙耦合太阳能天线，包括自上而下的第一层至第五层双面印刷的覆铜介质板；每层覆铜介质板由上下两面金属层及上下两面金属层之间填充介质组成；第二层和第四层覆铜介质板以及第一层覆铜介质板的下金属层形成镂空腔，第三层的覆铜介质板的上层金属层切割形成耦合缝隙，第三层覆铜介质板的下表面设置有与耦合缝隙配合的馈线，第一层覆铜介质板的上层金属层局部切除金属层露出介质基板区，介质基板区上设辐射贴片，辐射贴片上表面设非晶硅太阳能电池，作为电池的金属衬底的辐射贴片两侧用金属条与四周的金属地连接以接地，成为非晶硅太阳能电池负极。本发明使用SISL结构的缝隙耦合辐射贴片天线与非晶硅太阳能电池相结合，使得该天线具有高增益的特性。

Description

一种基于SISL结构的高增益5G缝隙耦合太阳能天线
技术领域
本发明涉及太阳能天线技术领域，特别是涉及一种基于SISL结构的高增益5G缝隙耦合太阳能天线。
背景技术
太阳能作为一种最有前途的可再生能源之一，在未来能源消耗占比中会越来越大。微波天线与太阳能电池相结合的研究也越来越受到大家的重视。提高集成度和解决天线与太阳能电池之间的相互干扰是太阳能天线面临的难题，一些太阳能天线的增益也小于7dBi。
发明内容
本发明的目的是针对现有技术中存在的技术缺陷，而提供一种基于SISL(介质集成悬置线)结构的高增益5G缝隙耦合太阳能天线，是一种工作在5G频段的高增益太阳能天线。
为实现本发明的目的所采用的技术方案是：
一种基于SISL结构的高增益5G缝隙耦合太阳能天线，包括自上而下的第一层至第五层双面印刷的覆铜介质板；每层覆铜介质板由上下两面金属层及上下两面金属层之间填充介质组成；第二层和第四层覆铜介质板以及第一层覆铜介质板的下层金属镂空切除处理形成镂空腔，第三层的覆铜介质板的上层金属层切割形成耦合缝隙，第三层覆铜介质板的下表面设置有与所述耦合缝隙配合的馈线以使得太阳能天线的直流电与交流电信号进行隔离，第一层覆铜介质板的上层金属层局部切除金属层露出由外围的上层金属层包围形成的介质基板区，该介质基板区上设置辐射贴片，所述辐射贴片上表面设置非晶硅太阳能电池，作为所述非晶硅太阳能电池的金属衬底的所述辐射贴片两侧连接金属条与上层金属层的四周的金属地连接以接地，成为非晶硅太阳能电池的负极。第五层覆铜介质板的上层金属作为反射板。
优选的，所述耦合缝隙为H形状的耦合缝隙，所述馈线直线状布置在H形状的耦合缝隙两个相对平行的缝隙之间，并与垂直连接两个相对平行的缝隙的直线缝隙相互垂直。
本发明使用SISL结构的缝隙耦合辐射贴片天线与非晶硅太阳能电池相结合，辐射贴片与旁边四周金属地通过细小的金属条相连接达到了接地效果，可用作非晶硅太阳能电池的金属衬底，SISL结构使得该天线具有高增益的特性。
本发明使用SISL结构减小了损耗，太阳能天线增益高达9.6dBi,使用H型缝隙耦合的馈电方式隔离了交流信号和电池的直流电，用辐射贴片当作非晶硅电池的金属衬底使得与太阳能电池和天线集成后对彼此的影响很小，电池和天线的性能基本不变，通过优化能工作在4.8-5.0GHz的频带。
附图说明
图1为本发明的基于SISL结构的高增益5G缝隙耦合太阳能天线的轴测外形图；
图2为本发明的基于SISL结构的高增益5G缝隙耦合太阳能天线的轴测分解图；
图3为本发明的第一层的覆铜介质板的上层金属层的结构示意图；
图4为带有H形状的耦合缝隙的第三层覆铜介质板的上层金属层和馈线结构配合示意图；
图5为集成太阳能电池天线与未集成太阳能电池天线的仿真与测试S11对比；
图6为集成太阳能电池天线与未集成太阳能电池天线的仿真与测试增益对比。
具体实施方式
以下结合附图和具体实施例对本发明作进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1-2所示，本发明的基于SISL结构的高增益5G缝隙耦合太阳能天线，基于SISL结构，是能用于5G的与非晶硅太阳能电池集成的缝隙耦合贴片天线，包括自上而下的第一层至第五层双面印刷的覆铜介质板；每层覆铜介质板由上下两面金属层及上下两面金属层之间填充介质组成；第二层和第四层覆铜介质板以及第一层覆铜介质板的下层金属镂空切除处理形成镂空腔，包括第二层的镂空腔15以及第四层的镂空腔14，第三层的覆铜介质板的上层金属层切割形成耦合缝隙25，第三层覆铜介质板的下表面设置有与所述耦合缝隙配合的馈线11，以使得太阳能天线的直流电与交流电信号进行隔离，第一层覆铜介质板的上层金属层局部切除金属层露出由外围的上层金属层包围形成的介质基板区，该介质基板区上设置辐射贴片19，所述辐射贴片上表面设置非晶硅太阳能电池18，作为所述非晶硅太阳能电池的金属衬底的所述辐射贴片19两侧连接金属条与上层金属层的四周的金属地连接以接地，成为非晶硅太阳能电池的直流负极16，第五层覆铜介质板的上层金属层作为反射板，和空腔一起用来改善天线的前后比。
具体的，第一层覆铜介质板包括第一层介质基板20以及第一层的上层金属层1以及第一层的下层金属层2，第二层覆铜介质板包括第二层介质基板21以及第二层的上层金属层3以及第二层的下层金属层4，第三层覆铜介质板包括第三层介质基板22以及第三层的上层金属层5以及第三层的下层金属层6，第四层覆铜介质板包括第四层介质基板23以及第四层的上层金属层7以及第四层的下层金属层8，第五层覆铜介质板包括第五层介质基板24以及第五层的上层金属层9以及第五层的下层金属层10，每层覆铜介质板上形成连接用的铆钉孔12，每层覆铜介质板上近四周对应的位置呈矩形状均设置有均匀的金属通孔13以接地。
优选的，第二层的覆铜介质板及第四层的覆铜介质板的厚度大于其它三层的覆铜介质板的厚度，第二层的覆铜介质板及第四层的覆铜介质板的厚度可以是相同或不同厚度，其它三层覆铜介质板的厚度可以相同或不同，所采用的介质基板采用介质层为FR4或者Rogers5880。
优选的，本发明实施例中，所述的金属层为铜层。
本发明实施例中，辐射贴片通过两侧的金属细条与第一层覆铜介质板的上层金属层四周的金属地连接达到接地的效果可以作为非晶硅太阳能电池的金属衬底，成为电池的负极，太阳能电池并不遮挡贴片的辐射边缘，因此与太阳能电池集成后天线的性能基本不受影响。
本发明实施例中，天线由微带馈电线馈电，通过H形状的耦合缝隙和空气腔耦合到第一层覆铜介质板的上层金属层上的辐射贴片，非晶硅太阳能电池工作时，其正面的Ag片作为直流正极17，背面的辐射贴片用作直流负极16，负极电流可以通过金属细条流向地。
其中，通过在第三层覆铜介质板的上层金属层上切割出H形状的耦合缝隙，引入缝隙耦合的馈电方式使得太阳能天线的直流电与交流电信号进行了隔离。
本发明实施例中，天线由50Ω微带线进行馈电，通过H形状的耦合缝隙耦合第一层覆铜介质板的上层金属层上的辐射贴片，第一层覆铜介质板的上层金属层和馈线以及第三层覆铜介质板的上层金属层上的耦合缝隙的具体结构如图3、图4所示。
图5、图6是集成非晶硅太阳能电池与未集成非晶硅太阳能电池的天线S11与增益的仿真与测试图，可以看出与太阳能集成后天线的性能几乎没有受到影响，该太阳能天线能够工作在4.8-5.0GHz这个频带，而且具有稳定的高增益表现，增益最高可达9.6dBi。
以上所述仅是本发明的优选实施方式，应当指出的是，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

1.基于SISL结构的高增益5G缝隙耦合太阳能天线，其特征在于，包括自上而下的第一层至第五层双面印刷的覆铜介质板；每层覆铜介质板由上下两面金属层及上下两面金属层之间填充介质组成；第二层和第四层覆铜介质板以及第一层覆铜介质板的下金属层镂空切除处理形成镂空腔，第三层的覆铜介质板的上层金属层切割形成耦合缝隙，第三层覆铜介质板的下表面设置有与所述耦合缝隙配合的馈线以使得太阳能天线的直流电与交流电信号进行隔离，第一层覆铜介质板的上层金属层局部切除金属层露出由外围的上层金属层包围形成的介质基板区，该介质基板区上设置辐射贴片，所述辐射贴片上表面设置非晶硅太阳能电池，作为所述非晶硅太阳能电池的金属衬底的所述辐射贴片两侧连接金属条与上层金属层的四周的金属地连接以接地，成为非晶硅太阳能电池的负极；所述耦合缝隙为H形状的耦合缝隙，所述馈线直线状布置在H形状的耦合缝隙两个相互平行的缝隙之间，并与垂直连接两个相互平行的缝隙的直线缝隙相互垂直。
2.根据权利要求1所述基于SISL结构的高增益5G缝隙耦合太阳能天线，其特征在于，第五层覆铜介质板上金属层作为反射板。
3.根据权利要求1所述基于SISL结构的高增益5G缝隙耦合太阳能天线，其特征在于，每层覆铜介质板上形成连接用的铆钉孔。
4.根据权利要求1所述基于SISL结构的高增益5G缝隙耦合太阳能天线，其特征在于，每层覆铜介质板上近四周对应的位置均设置有金属通孔以接地。
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