摘要
针对客户终端设备(Customer Premise Equipment,CPE)的应用需求,设计了一种低剖面双频圆极化天线。在2.45 GHz,采用了4个偶极子单元阵列产生水平极化全向辐射,并采用内部接地圆环贴片结构产生垂直极化全向辐射。将两部分结构通过耦合器有效连接起来,从而产生了全向圆极化辐射特性。在5.8 GHz,采用了贴片结构产生了定向圆极化辐射特性。通过双工器将2个频段的结构合并起来,实现了低剖面双频圆极化天线。实测结果表明,天线在2个频段均有较好的圆极化辐射性能,验证了该天线设计的有效性。
A low-profile dual-band circularly-polarized antenna is designed to meet the requirements of Customer Premise Equipment(CPE).At 2.45 GHz,an array of four dipole elements is used to generate a horizontally-polarized omnidirectional radiation,and the structure of a grounded ring patch between substrates is used to generate a vertically-polarized omnidirectional radiation.The two parts of the structures are effectively connected through a coupler,thus generating an omnidirectional circularly-polarized radiation.At 5.8 GHz,a patch structure is used to generate a directional circularly-polarized radiation.In this way,a low-profile dual-band circularly-polarized antenna is realized by combining the structures of the two frequency bands with a diplexer.Measurement results show that the antenna has good circularly-polarized radiation performances in both frequency bands,which verifies the effectiveness of the antenna structure and design.
作者
张小雨
孙虎成
ZHANG Xiaoyu;SUN Hucheng(Research Center of Applied Electromagnetics,Nanjing University of Information Science and Technology,Nanjing 210044,China;Jiangsu CICAEET,Nanjing University of Information Science and Technology,Nanjing 210044,China)
出处
《无线电工程》
北大核心
2023年第10期2375-2379,共5页
Radio Engineering
基金
国家自然科学基金(61501243)。
