【摘要】 研究了一种用于移动通信的改进型全向宽带天线,采用双锥结构,在馈电处加入短路枝节和寄生套筒,用于调节天线的输入阻抗特性,减小天线尺寸。该天线工作频率为696～2500MHz,高度仅为0.28λmax,直径为6cm,电压驻波比在整个频带内小于1.7,全向特性良好。仿真和实测结果吻合良好,表明该改进型双锥天线在较宽的频带内达到了满意的阻抗特性和方向图特性。更多还原

【Abstract】 In this paper,a novel omni-directional broadband biconical-structured antenna for mobile communication is studied.End shorted strip and sleeve structure are added to the feeding point for adjusting the input impedance and reducing the size.The working frequency band of the antenna is 696~2500 MHz,with a height of merely 0.28λmax and a diameter of 6 cm respectively.The VSWR is less than 1.7 in the whole band.The acceptable agreement of measured and simulated results shows that this kind of antenna has perfect input impedance and pattern properties.更多还原