【作者】 魏倩倩； 焦永昌； 杨磊； 渠芳芳；

【Author】 WEI Qian-qian;JIAO Yong-chang;YANG Lei;QU Fang-fang;National Key Laboratory of Antennas and Microwave Technology,Xidian Univ.;

【机构】 西安电子科技大学天线与微波技术国家重点实验室；

【摘要】 设计了一款双频宽带定向辐射天线,该天线以最基本电磁偶极子为基本模型,采用(38)型金属探针进行馈电,通过增加金属反射板实现定向辐射,并拓展低频带宽实现双频宽带。根据仿真结果,对天线模型进行了加工并测试。仿真和测试结果表明,天线在0.75~0.98GHz及1.6~2.77GHz频段上反射系数小于-10d B,同时在0.75~0.98GHz增益大于7d Bi,1.6~2.77GHz增益大于6d Bi。该天线具有多频带、定向辐射等优点,在无线通信系统中可以被广泛使用。更多还原

【Abstract】 Based on the traditional magneto-electric dipole antenna, a dual-wideband directional magneto-electric dipole antenna is presented in this paper. The antenna is excited by a(38)-shaped metal probe. By adding the metal reflection plate below the antenna, the antenna can achieve directional radiation patterns in the operating frequency band. According to the simulated results, the antenna is fabricated and measured. Both simulated and measured results show that reflection coefficients are less than-10 d B in 0.75 ~ 0.98 GHz and 1.6~ 2.77 GHz bands, the gains are greater than 7d Bi in 0.75 ~ 0.98 GHz band and greater than 6d Bi in 1.6~ 2.77 GHz band. The proposed antenna has good impedance matching and directional radiation characteristics in the working frequency band. It can be widely used in wireless communication systems.更多还原