一种可应用于物联网的高增益双频定向天线的设计与分析Design and analysis of a high-gain dual-band directional antenna used for IoT
张梦怡,王田
摘要(Abstract)：
设计了一种高增益印刷型双频定向天线,天线采用微带耦合馈电的方式进行馈电,其包含一个长的和一对短的印刷型对称振子,分别谐振在低频和高频频段,因而该天线可以同时工作在两个工作频段,大大提高了天线的集成度。天线的辐射振子和馈电都印刷在同一块微波板材上,从而方便了天线的制作和加工。通过将天线放置在一个金属腔体内,更进一步提高了天线的定向性和增益。仿真结果表明,该天线在2.4～2.5 GHz以及5.0～6.0 GHz频带范围内能实现良好的定向辐射特性,天线的增益分别能达到9 dB和10.5 dB,具有高增益、低副瓣、结构紧凑、双频工作等优点,可以广泛应用于物联网系统中。
关键词(KeyWords)： 双频天线;定向天线;高增益天线;物联网;低副瓣;PCB技术
基金项目(Foundation):
作者(Author): 张梦怡,王田
DOI: 10.16652/j.issn.1004-373x.2018.23.002
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