摘要
基于超薄液晶聚合物柔性材料,设计了一种满足无线体域网(WBAN)需求的双陷波UWB可穿戴天线。该天线由椭圆形贴片、锥形三叉戟共面馈线和梯形地板组成。通过分别在辐射贴片上蚀刻椭圆开口谐振环和在共面馈线上蚀刻n形槽以实现双陷波特性。该天线采用共面波导的馈电方式,具有良好的共面性,易于与载体共形。经网络矢量分析仪测试结果表明,该天线在3. 1~10. 6 GHz的超宽带频段内回波损耗小于-10 d B的同时,在4. 88~6. 15 GHz和7. 55~8. 51 GHz内拥有双陷波特性,可抑制WiMAX和ITU 8 GHz频段对系统产生的干扰。与以往的可穿戴天线相比,该天线厚度仅为0. 1 mm,且柔性可弯曲。此外,对天线在弯曲情况下进行测试,天线特性基本保持不变。
A dual band-notched UWB flexible antenna for wireless body area network(WBAN)device was presented.The antenna was printed on ultra-thin liquid crystal polymer.The antenna was constituted with elliptic radiation patch,tapered microstrip feeder and trapezoid coplanar ground.Band-notched characteristic was realized by etching n-shaped groove on the microstrip feedline and etching elliptic single complementary split-ring resonator on the radiation patch.Coplanar waveguide was applied to the antenna,which has good coplanarity and is easy to conform to the carrier.The measurement results show that the return loss of the antenna is lower than-10 dB in 3.1-10.6 GHz and has band-notched characteristic in 4.88-6.15 GHz and 7.55-8.51 GHz at the same time.It can avoid interference from the WiMAX and ITU 8 GHz band signals,respectively.Compared to previous wearable antennas,the thickness of the proposed antenna is only 0.1 mm.The antenna is a suitable candidate for flexible systems.The bending performance of the antenna was analyzed.The results show that the characteristics of the antenna under bending condition are almost unaffected.
作者
朱丽雪
杜成珠
焦哲晶
郭敏
林建宇
ZHU Lixue;DU Chengzhu;JIAO Zhejing;GUO Min;LIN Jianyu(College of Electronics and Information Engineering,Shanghai University of Electric Power,Shanghai 200082,China;Shanghai Key Laboratory of Electromagnetic Environmental Effects in Aerospace Vehicles,Shanghai 200082,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2020年第1期52-57,共6页
Electronic Components And Materials
基金
国家自然科学基金(61371022)
上海市自然科学基金(16ZR1412900,19ZR1453900)
关键词
液晶聚合物
共面波导
双陷波
超宽带
可穿戴天线
liquid crystal polymer
coplanar waveguide
dual band-notched
UWB
wearable antenna
