Design of UHF RFID Passive Tag Antenna Pasted on a Large Metal Structure
In this paper we present a new design of patch-type antenna using a loop circuit located inside the antenna structure to excite the antenna,which has potential to resolve the problem arising from the situation when the antenna is pasted on a large metal ground.The problem of large metal structures to the RFID tag antenna arises because most of the RFID uses electrical dipole-type antennas.In this case,the presence of large metal structure will short the antenna and reduce the radiation field strength.The proposed antenna structure is a magnetic type.The proposed design concept intends to optimize the field distribution within the substrate between the patch and ground,and therefore may reduce significantly the antenna size.Experimental study showed that the antenna may be used to enhance the reading range to be more than 3 meters.
Shih-Chung Tuan Hsi-Tseng Chou Kuo-Lun Hung Jen-Chung Chu
Dept.of Communication Eng.,Oriental Institute of Technology,Pan-Chiao,Taiwan Dept.of Communication Eng.,Yuan Ze University,Chung-Li 320,Taiwan
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
251-255
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）