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设计制作了一款新结构的垂直极化全向微带天线。天线利用分布于立方体侧面上的四个对称性天线单元的单向辐射实现全向辐射,通过单元辐射结构上加载两臂,增加天线的谐振点,展宽设计天线的带宽,对该天线进行了仿真和测试。结果表明,仿真与测试结果基本吻合。设计的天线带宽覆盖了1.7~2.8 GHz,反射系数S11<–10 d B的相对带宽达到49%,在整个频带内实现了全向辐射。天线结构简单且紧凑,易于加工,可用于移动通信领域。
Design and manufacture of a new structure of vertical polarization omnidirectional microstrip antenna. The antenna utilizes omnidirectional radiation from four symmetrical antenna elements distributed on the side of the cube to achieve omnidirectional radiation. The antenna is simulated by loading two arms on the unit radiation structure, increasing the resonance point of the antenna, broadening the bandwidth of the designed antenna And test. The results show that the simulation and test results are basically consistent. The designed antenna bandwidth covers 1.7-2.8 GHz, and the reflection coefficient S11 <-10 d B has a relative bandwidth of 49%, achieving omnidirectional radiation over the entire frequency band. Antenna structure is simple and compact, easy to process, can be used in mobile communications.