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×25mm×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Wi MAX（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。
A compact UWB antenna with multi-band-notched property is presented. The antenna is composed of a circular patch and improved ground. The muki-hand-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 hand （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-hands, making it more suitable for UWB application.
出处
《微波学报》
CSCD
北大核心
2018年第1期11-15,20,共6页
Journal of Microwaves
基金
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)
关键词
超宽带
陷波特性
圆弧状U形槽
辐射方向性
uhra-wideband, band-notched characteristic, arc U-shaped slot, radiation characteristics
