摘要
本文利用双寄生套筒的结构,采用双锥和粗振子结合的辐射体形式设计了一款可与卫导天线级联的全向宽带穿杆天线。采用这种特殊结构该天线解决了常规天线内部穿金属接地杆后驻波恶化的问题。仿真和实测结果表明天线在120-550MHz频带内电压驻波比小于2.5,且高低频端的方向图全向性良好。
In this paper, a new broadband omni-direetional antenna which utilizes dual-parasitic sleeve structures with a metal pole through the radiator for VHF/UHF operation is designed. The radiator includes biconical-structure and thick dipole in order to reducing the size. This antenna can combine satellite navigation antenna to form a new mast antenna by use of this structure to improve the impedance. The working frequency band of the antenna is 120-550MHz. In the whole band the VSWR is less than 2.5. The measured and simulated results show that the antenna has good omni-directional pattern properties over high and low frequency.
出处
《现代导航》
2015年第1期39-42,共4页
Modern Navigation
基金
中国电科技术创新基金项目编号:JJ11102
关键词
全向
天线穿杆
桅杆天线
Omni-Direction
Metal Pole through the Antenna
Mast Antenna
