紧凑型多陷波超宽带天线设计与研究
Design and Research of a Compact UWB Antenna with Multi-band-Notched Characteristics
  
DOI:
中文关键词:  超宽带,陷波特性,圆弧状U形槽,辐射方向性
英文关键词:ultra-wideband, band-notched characteristic, arc U-shaped slot, radiation characteristics
基金项目:国家自然科学基金(61372058);辽宁省高校重点实验室项目(LJZS007);辽宁省教育厅科学研究一般项目(L2014130)
作者单位
南敬昌, 刘银玲, 李 蕾 辽宁工程技术大学电子与信息工程学院, 葫芦岛 125105 
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中文摘要:
      提出了一款紧凑型多陷波特性超宽带天线,该天线由圆形贴片和改进的接地板组成。采用在辐射贴片上开两个圆弧状U形槽和接地板上开一个U形窄缝隙的结构使其具有多陷波特性。天线的体积仅为32 mm′25 mm′1.6 mm,结构紧凑。仿真与测试结果表明:该天线工作带宽为2.8 ~ 16 GHz,实现了3.2~3.8 GHz、4.5~5.5 GHz 和7.2~8.6 GHz 3个频段的陷波特性,有效阻隔了WiMAX(3.3~ 3.6 GHz)、大容量微波通信频段(4.5~5 GHz)、部分WLAN(5.1~5.35 GHz)、X波段(7.25~7.75 GHz)和国际电信联盟(ITU)波段(8.01~8.5 GHz)窄带信号的干扰。除陷波频段外该天线具有良好性能和辐射方向性,更适合应用于超宽带系统。
英文摘要:
      A compact UWB antenna with multi-band-notched property is presented. The antenna is composed of a circular patch and improved ground. The multi-band-notched characteristics are achieved by embedding two arc U-shaped slots on the radiating patch and etching a narrow U-shaped slot on the ground plane. The proposed antenna has a compact volume of 32 mm′25 mm′1.6 mm. Simulated and measured results show that the antenna has bandwidth of 2.8 ~16 GHz, it realizes band-notched characteristics of triple stop-bands at 3.2~3.8 GHz, 4.5~5.5 GHz and 7.2 ~8.6 GHz, and efficiently rejects the jamming from WiMAX (3.3 ~ 3.6 GHz), large capacity microwave communication (4.5 ~ 5 GHz), partial WLAN (5.1~5.35 GHz), X band (7.25 ~ 7.75 GHz) and ITU (8.01 ~ 8.5 GHz) band signals. The antenna exhibits good performance and radiation characteristics except at reject-bands, making it more suitable for UWB application.
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