摘要
提出了一种新型的双频段方向图可重构方形天线。该天线由贴片-槽-方形环及四个带U型槽的类喇叭形寄生单元构成。通过改变U型槽结构的深度,天线可分别工作在2.45GH和5.25GHz两个频点。通过控制贴片-方形环-喇叭形寄生单元之间通断,选择相应的寄生单元,天线可分别在θ=45°和θ=90°平面上实现4个方向的定向辐射。该天线在2.42~2.52GHz和5.21~5.32GHz两个频段上具有较好的定向性,适用于抗干扰性能要求较高的多频点工作的无线通信系统。
A novel rectangle-shaped antenna with dual-band and pattern reconfigurable characteristics is presented in this paper.The antenna consists of a patch-slot-square loop structure and surrounding four Quasi-Horn parasitic patches with U-shaped slot.By reconfiguring the depth of the side slot in the U-shaped slot,the antenna can cover two resonant frequencies of 5.25 GHz and 2.45 GHz,respectively.The main lobe of each pattern directs to one of four different directions in the plane with the elevation angle of 45°or 90°by controlling the states of one set of connections among the center patch,square loop and Quasi-Horn parasitic elements.The antenna,which operates at two resonant frequencies within 2.42~2.52 GHz and 5.21~5.32 GHz,has a good performance of directional radiation properties,so that it has potential applications in wireless communication systems with multiple operating frequency bands and high performance against the interference.
出处
《电子测量技术》
2016年第1期1-4,共4页
Electronic Measurement Technology
关键词
可重构天线
方向图
多频段
寄生单元
reconfigurable antenna
radiation pattern
multi-band
parasitic element
