CAJ | 학술논문

为了满足无线通信高速数据需求和微带天线的小型化,设计了一种频率和方向图可重构锯齿偶极子微带天线,该天线包括2个锯齿状振子,分别印制在介质板的两面。通过改变锯齿振子上PIN二极管的工作状态,使天线的局部结构和表面电流分布发生变化,实现天线频率和方向图的可重构。实验结果表明,该天线在1.88~2.85 GHz 频段内实现可重构的功能,覆盖了主要的无线通信频带。在工作频段内,天线的 H 面方向图具有全向特性,E面方向图实现了波束扫描。
위료만족무선통신고속수거수구화미대천선적소형화,설계료일충빈솔화방향도가중구거치우겁자미대천선,해천선포괄2개거치상진자,분별인제재개질판적량면。통과개변거치진자상PIN이겁관적공작상태,사천선적국부결구화표면전류분포발생변화,실현천선빈솔화방향도적가중구。실험결과표명,해천선재1.88~2.85 GHz 빈단내실현가중구적공능,복개료주요적무선통신빈대。재공작빈단내,천선적 H 면방향도구유전향특성,E면방향도실현료파속소묘。
In order to meet high date rate wireless services and the miniaturization of the micro-strip antenna,a printed planar micro-strip fed saw-tooth dipole antenna with reconfigurable frequency and pattern properties is designed for wireless com-munication.The structure consists of two saw-tooth dipoles,each one is printed on one substrate layer.The saw-tooth di-pole can achieve its frequency and pattern reconfigurable function by changing the operating state of the PIN diode to trans-form the local structure and the distribution of surface current.Experimental results show that the antenna can achieve the function reconfigurable in the range of 1.88-2.85 GHz,which covers the main wireless communication band.During the op-erating band,an omni-directional radiation pattern in H-plane is well reached and the beam scanning in E-plane pattern is a-chieved.