摘要
针对LoRa可穿戴冲击波检测记录仪需要小体积天线的问题,设计了一种小型的LoRa微带天线.该天线采用曲流技术即蛇形蜿蜒走线形式,减小了天线的结构尺寸,通过加载匹配网络的方法改善了天线的阻抗性能.使用Ansoft HFSS 15.0仿真软件设计了天线的整体结构,推导出天线的各个最优参数.仿真结果表明,天线在中心频率470 MHz处的回波损耗为-17.3 dB,驻波比约为1.36,尺寸仅为1.5 cm×2.5 cm.该天线结构简单、体积小、质量轻、易共性,具有良好的全向性和实际应用价值,可以适用于冲击波检测记录仪系统中.
To meet the requirement of LoRa wearable shockwave detection recorder for small volume antenna,a small LoRa microstrip antenna was designed.To reduce the structural size of the antenna,we adopted the meandering technology,namely the snaking form to design the antenna,and improved the impedance performance of the antenna by loading a matching network.By using Ansoft HFSS 15.0 simulation software to design the overall structure of the antenna and derive the optimal parameters of the antenna.The simulation results show that the return loss of the antenna at the center frequency of 470 MHz is-17.3 dB,the standing wave ratio is about 1.36,and the size is only 1.5 cm×2.5 cm.In addition,the antenna is simple in structure,small in size,light in weight,easy to commonality,has good omni-directionality and practical application value,and can be applied to a shock wave detection recorder system.
作者
李东霞
丁永红
尤文斌
LI Dongxia;DING Yonghong;YOU Wenbin(School of Information and Communication Engineering, North University of China, Taiyuan 030051, China;Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan 030051, China;School of Electrical and Control Engineering, North University of China, Taiyuan 030051, China)
出处
《中北大学学报（自然科学版）》
CAS
2022年第2期180-185,192,共7页
Journal of North University of China(Natural Science Edition)
关键词
Lora
微带天线
小体积
全向性
参数优化
LoRa
microstrip antenna
small volume
omni-direction
parameter optimization
