【摘要】 提出了一种由一对平面偶极子和一对垂直折叠短路贴片组成的新型磁电偶极子天线。通过加载矩形盒反射板,有效减少了副瓣,提高了辐射方向图的一致性,实现了天线的高增益定向辐射。采用有限元法进行分析与研究,结果表明:天线在1 650~2 800 MHz频段内,电压驻波比小于1.5的相对带宽达到52.3%,最大增益10.38 d Bi;E面和H面辐射方向图具有低交叉极化、低后瓣特性。该天线具有稳定的增益及良好性能,可应用于移动通信中的基站。更多还原

【Abstract】 A new Magneto-Electric dipole antenna composed of a pair of horizontal planar dipole and a pair of vertically-oriented folded short patch antenna is proposed. By loading the rectangular box-shaped reflector, the back radiation is effectively reduced, the consistency of the radiation pattern improved, and the high-gain directional radiation of the antenna also realized. Analysis and study with finite element method indicate that the relative impedance bandwidth of 52.3% for frequency band from 1.65 to 2.80 GHz,and the maximum gain of 10.38 d Bi. And the stable radiation pattern in the E-plane and H-plane with low-cross polarization and low back radiation could be achieved. The antenna has stable gain and good performance, and could be applied to the base-station in mobile communication.更多还原