【摘 要】
：
设计了一种基于陷波结构的三频微带天线。采用共面波导方式馈电,通过在辐射贴片上加载双U形缝隙方式实现双陷波,并可通过调节缝隙长度的方式对陷波中心频率进行灵活调节。仿
【机 构】
：
国防科技大学机电工程与自动化学院,
论文部分内容阅读
设计了一种基于陷波结构的三频微带天线。采用共面波导方式馈电,通过在辐射贴片上加载双U形缝隙方式实现双陷波,并可通过调节缝隙长度的方式对陷波中心频率进行灵活调节。仿真结果表明,天线在3.34~3.89GHz和5.39~5.73GHz两个频段内实现陷波,可避免与已用无线通信频段如无线局域网和全球微波互联通信接入的干扰。在工作频段内方向图特性良好,可应用于距离和目标探测。
A three-band microstrip antenna based on notch structure is designed. Using coplanar waveguide feed, dual notch is realized by loading double U-shaped gap on the radiation patch, and the notch center frequency can be flexibly adjusted by adjusting the length of the slit. The simulation results show that the antenna can not only realize the notch in the frequency bands of 3.34 ~ 3.89GHz and 5.39 ~ 5.73GHz, but also avoid the interference with the used wireless communication frequency band such as wireless local area network and global microwave Internet access. The characteristics of the pattern in the working frequency band can be applied to range and target detection.
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