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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。
Abstract：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.
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基本信息:
中图分类号:TN821.1
引用信息:
[1]张小雨,孙虎成.一种应用于CPE的低剖面双频圆极化天线[J].无线电工程,2023,53(10):2375-2379.
基金信息:
国家自然科学基金(61501243)~~