小型化多频基站天线的设计

文中设计了一种工作频段为698~960MHz的新型低频辐射单元，该辐射单元上方可嵌套4个工作频段为1700~2700MHz的高频辐射单元，实现一列低频两列高频的多频天线，底板宽度只有280mm，与常规三频天线的宽度380mm相比，宽度减小约26%，减小了天线尺寸，实现了天线的小型化设计。仿真结果表明，该方案在698~960MHz及1700~2700MHz的水平面方向上，能满足常规基站天线的需求。

Design of Miniaturized Multifrequency Base Station Antenna

In this paper, a new low frequency radiating unit with an operating frequency band of 698~960MHz is designed. Four high-frequency radiating units with an operating frequency band of 1700~2700MHz can be nested above the radiating unit to realize one low frequency and two high-frequency multi frequency antennas. The width of the baseplate is only 280mm. Compared with the width of the conventional tri frequency antenna of 380mm, the width is reduced by about 26%, which greatly reduces the antenna size and realizes the miniaturized design of the antenna. The simulation results show that the scheme can meet the needs of conventional base station antennas in the horizontal direction of 698~ 960MHz and 1700~2700MHz.