摘要
设计了一款小型化窄条形宽带柔性天线,该天线由辐射片和带有短路枝节的共面波导金属地构成,整体尺寸为24.5 mm×5.0 mm×0.1 mm。通过采用带有短路枝节的共面波导金属地、新共面波导结构、两个U型缝隙、馈线倾斜焊接等方法,有效增加了阻抗带宽,且与常规柔性天线相比尺寸减小70%。测试结果表明,天线用于超宽带定位系统中的智能手表时,工作频段覆盖3.27~4.55 GHz,带宽内增益大于2.4 dBi,不圆度小于0.95 dB。
A miniaturized narrow strip broadband flexible antenna was designed,which was composed of a radiator and a coplanar waveguide metal ground with short circuited branches.The overall size of the antenna is 24.5 mm×5.0 mm×0.1 mm.By using the methods of coplanar waveguide metal ground with short circuit branches,new coplanar waveguide structure,two U-shaped slots,and the inclined welding of the feeder,the impedance bandwidth is effectively increased,and the antenna size is reduced by 70%compared with the conventional flexible antenna.The test results show that when the antenna is used in the smart watch in the ultra-wideband positioning system,the working frequency band covers 3.27 GHz to 4.55 GHz,the gain in the bandwidth is greater than 2.4 dBi,and the out of roundness is less than 0.95 dB.
作者
刘丽珍
LIU Lizhen(Zhengzhou Lianrui Electronic Technology Co.,Ltd.,Zhengzhou,450001,CHN)
出处
《固体电子学研究与进展》
CAS
北大核心
2023年第5期408-412,共5页
Research & Progress of SSE
关键词
小型化
窄条形
柔性天线
智能手表
miniaturization
narrow strip
flexible antenna
smart watch