双频段射频识别印刷天线

Dual-Band Radio Frequency Identification Printed Antenna

提出一种新型结构的双频段射频识别(RFID)印刷天线。该天线由共面波导(CPW)馈电,工作于2.45 GHz和5.80 GHz两个RFID频段。实测的阻抗带宽在2.45 GHz和5.80 GHz两个频段处,分别达到了32.0%和9.8%。该天线结构简单,尺寸为40 mm×40 mm,易与有源器件和微波单片集成电路集成在一起。最后,给出了该天线的详细设计及试验结果,并进行了讨论。

A new design of dual-band radio frequency identification （RFID） printed antenna fed by a coplanar waveguide （CPW） is proposed, which operates in both 2.45 GHz and 5.80 GHz RFID bands. Its two measured impedance bandwidths are 32.0% at 2.45 GHz and 9.8% at 5.80 GHz respectively. The antenna has a simple structure sized 40 mm×40 mm, which is easy to be integrated with active devices and monolithic microwave integrated circuits. Details of the proposed antenna design and the measured results are presented and discussed.