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作 者:黄文锐 王俊 HUANG Wen-rui;WANG Jun(Coligen Corp.,Zhuhai 519085,China)
出 处:《价值工程》2020年第21期197-199,共3页Value Engineering
摘 要:某型高精度导航定位系统工作在中短波段,天线系统尺寸大,工作在窄频。为此,文章提出并设计了双Peano分形的小型天线。并针对中短波段信号波长长,天线导线线径过细的问题利用FDTD中的细导线、同轴线等分析技术构建了天线模型,给出了电磁特性数学描述。仿真结果表明该系统能够工作在中短波段,满足中短波段导航系统要求。The antenna of some system is with the disadvantages of large size and narrow working frequency band, which works in the MW and SW bands. To solve this problem, this paper proposes a new-designed double-Peano fractal antenna as the receiver antenna. And then, this paper builds on the model of this antenna based on several pivotal techniques which belongs to the FDTD, exiguous lead method,coaxial line analysis, etc. The simulation results show that the antenna whose height is 15.6 cm while working frequency is about 8.98 MHz,with the characteristics of omni-direction, low profile and wide-band, meets requirements of the navigation system working in the MW and SW bands.
关 键 词:无线电导航 分形天线 双Peano结构 FDTD
分 类 号:TN82[电子电信—信息与通信工程]
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