摘要
八木天线是一种端射式天线,较偶极天线具有高增益、方向性好的优点。该文提出一种用于无源测温标签的微带八木天线,并针对该天线的回波损耗S11、输入阻抗、方向性等问题进行研究。针对设计目标Farsens Rocky100射频芯片的阻抗匹配需求,进而使用T型匹配网络和弯折偶极子臂的方法,设计出一种新型的微带八木天线,并对常用频段内各天线尺寸变化对阻抗所产生影响的规律进行了分析。对设计的弯折微带八木天线的回波损耗S11、阻抗和方向性进行了仿真,结果符合天线设计的性能要求。
Yagi antenna is a kind of end fire antenna,which has the advantages of high gain and better directivity than dipole antenna. In this paper,a microstrip Yagi antenna for passive temperature measurement tag is proposed,and its return loss S11,input impedance and directivity are studied.According to the impedance matching requirements of Farsens Rocky100 RF chip,a new microstrip Yagi antenna is designed by using T-shaped matching network and bent dipole arm. The influence of antenna size on impedance in common frequency band is analyzed. The return loss S11,impedance and directivity of the designed bent microstrip Yagi antenna are simulated,and the results meet the performance requirements of the antenna design.
作者
张炜
贾云飞
张珊
佟鑫
丁云广
ZHANG Wei;JIA Yunfei;ZHANG Shan;TONG Xin;DING Yunguang(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Material Center,China Academy of Launch Vehicle Technology,Beijing 100076,China;Key Laboratory of Space Physicsr,Beijing 100076,China)
出处
《电子设计工程》
2022年第19期93-96,101,共5页
Electronic Design Engineering
基金
空间物理重点实验室基金项目(6142211180310)。
关键词
微带八木天线
弯折
T型匹配网络
阻抗匹配
microstrip Yagi antenna
bending
T-type matching network
impedance matching
