Aperture Coupling Two-layered Dual-band RFID Reader Antenna Design
An Aperture coupling two-layered dual-band RFID reader antenna is proposed. It consists of a single patch on the top layer,which is notched on the radiating edges to obtain dual-band operation and an aperture on the ground plane of the bottom layer fed by a dual-offset microstrip line,and an air layer between them. The antenna bandwidth can be expanded by utilizing the coupling effect between the notched patch and the resonant aperture,in addition,the upper and lower resonant frequencies can be controlled by adjusting the two offset feed lines distance and the aperture length,respectively. The measured impedance bandwidth for 1:2 VSWR of the designed antenna at the UHF band reaches 16.7％ (880MHz～1.04GHz) and 31％(1.96GHz～2.68GHz) at the microwave band,which agree well with the simulated results. Good broadside radiation with high gain (6～8 dBi) characteristics has also been observed.
Zhishu Xu Xiuping Li
Key laboratory of Universal Wireless Communications,Ministry of Education School of Telecommunication Engineering Beijing University of Posts and Telecommunications,100876,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
1218-1221
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）