High Gain Ferrite Cavity-Backed Slot Antenna For RFID Application
This paper describes a high gain cavity-backed slot (CBS) antenna. A superstrate of thin metal is placed at a certain distance above the substrate to enhance the gain of the slot antenna. The cavity-backed slot antenna is fed by a microstrip line printed on the top of the substrate. In order to reduce the size of antenna, We use the ferrite as the substrate, and the optimized antenna size is 40*30(mm). The cavity thickness of this slot antenna is about 10 times smaller than conventional cavities, which would allow constructing this antenna even with standard multilayer planar technology. The simulation results and show that this metal superstrate-covered cavitybacked slot antenna can attain the gain of 7.16dBi. The antenna can meet the needs of particular RFID application.
high gain CBS antenna RFID
Chao Li Quanyuan FENG
Institute of Microelectronics, Southwest Jiao tong University, ChengDu, 610031, China
国际会议
成都
英文
28-31
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）