Design of Miniature High-gain Tag Antenna for Passive RFID System
GAN Yong
GUO Shengna
WANG Kai
Abstract：According to the developing direction of miniaturization and high gain for the ultra high fre-quency (UHF) radio frequency identification (RFID) antenna,a passive RFID tag antenna with simple structure is designed based on RFID Technology.The tag chip is Higgs3,the tag antenna is composed of FR4 substrate and radiating element and it uses T-type matching network structure. Its impedance at 920 MHz is 27-j200 Ω.Antenna size is only 52.8 mm×17 mm,through the HFSS simulation of the antenna.The antenna at 920 MHz impedance of 24.8+j196.9 Ω,the chip is well matched. The bandwidth of the antenna covers the ultra-high frequency band 840 MHz~960 MHz,the maximum gain of the antenna is 9.6 dBi. The antenna has a good radiation performance,and it is suitable for use in remote reading environment.
Keywords：radio frequency identificationtag antennaminiaturizationhigh gain
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 175-177 )