五陷波超宽带天线的研究与设计
Design and Research of Ultra-wideband Quintuple Band-notched Antenna
  
DOI:
中文关键词:  超宽带,陷波特性,开环谐振器,短截线
英文关键词:ultra-wideband, notched band characteristic, split ring resonator, stub
基金项目:
作者单位
罗佳君 李良荣 贵州大学 大数据与信息工程学院,贵阳 550025 
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中文摘要:
      为滤除窄带信号对超宽带通信系统的干扰,研究并设计了一种具有五个陷波特性的超宽带天线。采用微带线馈电,在辐射贴片上刻蚀一个椭圆形开环谐振器,并在馈线旁制作了四个不同尺寸的U 形寄生短截线,以实现天线的陷波特性,天线尺寸为30 mm×40 mm×0.8 mm。仿真实验验证了天线工作频率范围为2.8~12 GHz;有效滤除了WiMAX 波段(2.94~3.42 GHz)、INSAT 波段(4.42~4.53 GHz)、WLAN 波段(5.32~5.5 GHz)、X 波段上行频(7.01~7.27 GHz)和X 波段下行频(7.57~8.05 GHz)。实测数据表明,天线的工作频段、方向性、增益及五个陷波特性等性能指标良好。
英文摘要:
      In order to filter the interference of narrowband signals to UWB communication systems, the paper studies and designs an UWB antenna with five band-notched characteristics. The design feeds by microstrip-line. Band rejection characteristics are realized by etching an elliptical open-loop resonator in the radiating patch and making four different-sized U-shaped parasitic stubs besides the feedline. The antenna size is 30 mm×40 mm×0. 8 mm. The simulation experiment shows that the antenna operating frequency range is 2. 8-12 GHz, effectively filters WiMAX band (2. 94-3. 42 GHz), INSAT band (4. 42-4. 53 GHz), WLAN band (5. 32-5. 5 GHz), the X-band uplink frequency (7. 01-7. 27 GHz) and the X-band downlink frequency (7. 57-8. 05 GHz). The measured results show that the antenna has a good performance index in working bandwidth, directivity, gain and five band-notched characteristics.
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