本论文提出了一款新颖的应用于感知物联网(CIOT, Cognitive Internet of Things)的方向图可重构的RFID (Radio Frequency Identification)超高频电子标签天线。该RFID超高频电子标签天线为应用于金属物品的偶极子天线，创新之处在于：1) RFID超高频电子标签天线采用汉字结构；2) 偶极子天线应用“铰链型”可旋转结构，在0？~90？范围内调控超高频电子标签天线的偶极子臂的夹角，进而实现电子标签天线的阻抗实部在0~90 ohm范围以及虚部在150~260 ohm范围内可调，方向图在边射(约0？)和前向端射(约？90？)范围内调控；3) 在该超高频天线偶极子臂夹角固定为某一特定角度(以60？为例)的前提下，通过在”铰链型”天线的上层加一层介质和电磁带隙栅格结构(EBG, Electromagnetic Band-Gap)进一步调控方向图的辐射方向(以60？夹角为例，可进一步调控30？~40？)。实际测试结果验证了RFID超高频电子标签天线的可翻转偶极子臂对方向图的调控性，以及EBG结构对方向图辐射方向的可调控性。本文探索了可重构天线在RFID超高频电子标签天线的延伸，尤其提出并验证了可翻转偶极子臂以及EBG对RFID超高频电子标签天线的方向图及方向图辐射方向的可调控性能。<br/>A hinge-type RFID (Radio Frequency Identification) chip antenna with reconfigurable radiation pattern is proposed for Cognitive Internet of Things (CIOT). As analyzed using FEM (Finite Element Method) the hinge-type structure enables the dipole antenna to be rotatable and by rotating the angle between the two antenna’s arms from 0？ to 90？, its radiation pattern can be reconfigured from 40？ to ？90？ (assuming the axis vertical to ground is 0？). Moreover, EBG (Electromagnetic Band-Gap) structure is applied to realize further reconfigurable radiation patterns. Specifically, taking 60？ degree as an example, by tuning the size of rectangular hole of EBG, its radiation patterns could be tuned ±30？. The reconfigurable radiation pattern is qualitatively verified by experiment using Tagformance measurement system.